243 Win Loads

[KHOOKS]

Re: 243 Win Loads

I've been looking at this thread is there a reason why I see no loadings with Varget?

 

[Cuban Croc]

Re: 243 Win Loads

Varget is a great powder, but the velocities achieved by the 243 are slow. It burns a little to fast for the 243 using the heavier bullets. IMO.

 

[Cuban Croc]

Re: 243 Win Loads

Brandon,

Just read your post. Thank you. I was a little concerned about taking it up a notch. But honestly if I could achieve 2900fps w/ +/-4fps and shoot a tight group...I would call that good.

-Al

PS. What was you final load developement for yourself? Did you bring it back down?

Thanks again.

 

[KHOOKS]

Re: 243 Win Loads

What about Varget with 87gr pills and down? Right now I only have RL-15/Varget and I think some IMR4831 I use in my 30-30. Should I pick up something else to try in my .243 M70 1/10 twist for 87gr v-maxs.

 

[Brandon05_88]

Re: 243 Win Loads

Cuban,
I didn't run a 'pressure test' of a single round at increasing loads until I hit pressure. I just loaded up 3 rounds each from 40.5 to 44.5 in 0.5 grain increments. I topped 3000 fps with the 44.5 load. However, I found a 2 grain window where all the POI were the same and each group was 0.25" or smaller (all at 100 yards). The window was from 42.0 to 44.0. It just so happened that 43.0 had the smallest group at 0.135" and it being in the center of the 'window' was a no brainer to run with it. I later tested it at 400 yards with velocities and such. It held 0.5 MOA at 400 yards and delivered good ES/SD. This past summer I stretched it out to 1,400 yards. Again, this is a 95 grainer at 2950 fps. It held 1.18 MOA for 5 shots at that distance.

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2657771#Post2657771

I guess you could call it backing down. On the RL22, I tested up to 3280 fps (47.0 gr) and settled on a lower node...6 grains of powder lower. I ran that load for a bit until temp sensitivity bit me. Then I worked up a load with H4831.

Again, I would worry more about consistency than speed. With the 105 Amax, a 200 fps increase in velocity (2800-3000) will only yield 0.2 mil less windage at 1000. However, the 200 fps will yield a 1.4 mil flatter at 1000. Elevation for distance is a given, wind is not. I'd run a more consistent load for vertical stringing and give up 1 mil at 1000, and you only give 0.1 mil in the windage at 1000.

Work up a few loads, you're only 80 fps from the 2900 you want. You could possibly be coming into a node also.
Brandon

 

[Brandon05_88]

Re: 243 Win Loads

KHOOKS,
I would give H4350 a run with those 87 Vmax. Check out this link that Cuban posted part of earlier.

http://www.6mmbr.com/243win.html

They give some info on pairing the bullet weight and powder burn rates.
Brandon

 

[boudin]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KHOOKS</div><div class="ubbcode-body">I've been looking at this thread is there a reason why I see no loadings with Varget? </div></div>
The one time I tried working up a load for 105 gr AMAXes and 95 gr SMKs with Varget, I was getting into pressure signs way low on the suggested powder range. I stopped testing with it there, but plan on fiddling with the 85 gr SGKs and Varget sometime down the road. It's just hard to justify when they shoot so well with the IMR 4064.

 

[bigwheeler]

Re: 243 Win Loads

I have read and heard of several .243's blowing up in western Mt. from short loads. Double pressure spikes may be the cause. This may explain why you
saw over pressure on the bottom end.

 

[boudin]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: bigwheeler</div><div class="ubbcode-body">I have read and heard of several .243's blowing up in western Mt. from short loads. Double pressure spikes may be the cause. This may explain why you
saw over pressure on the bottom end. </div></div>
If you're referring to the OAL when you say "short loads", I don't think that was the case in my situation. They were seated to .02 off the lands, so pretty long.

 

[KHOOKS]

Re: 243 Win Loads

Is IMR 4350 the same as the H4350 stated above.

Ken

 

[KHOOKS]

Re: 243 Win Loads

I found it a BIG NO

 

[KHOOKS]

Re: 243 Win Loads

I run across a LB of H414 powder. I picked it up, now in my reloading manuals it states to use a magnum primer with this powder. I see in some of the above loads that magnum primers wasn't used. So I'm wondering if I go with a standard primer should I start my work up loads on the higher end of the charge weight, or work it up from mid load range like I would if my book matched the components I am using.

 

[OutlawTen5]

Re: 243 Win Loads

Tag

 

[LOBO]

Re: 243 Win Loads

I am using Winchester brass in my .243 loads. How does its case capacity compare to Lapua brass?

 

[OK243]

Re: 243 Win Loads

I have a R700 SPS Varmint that I started shooting HOR 87 HPBT with IMR 4064 which shot very well. Then switched to 87 VLD with IMR 4064 which also shoots very well now that I figured out the seating depth. I have purchased some moly 105 AMAX that I would like to try. I have IMR 4064 and Retumbo on hand.
Does the moly coating change anything or can I expect the same results as I have read in the posts above?

Thanks
JW

 

[boudin]

Re: 243 Win Loads

Moly coated bullets will probably respond a little differently than non-coated (since it reduces friction). I would start your testing for the 105 amaxes with the Retumbo. In my experience, IMR 4064 does not work well with them. I tried some charges in the realm of the 105 amax+IMR 4064 load mentioned by Digger above, but the spread was atrocious (1-2 FEET @ 100 yds). Retumbo pushes the 105's into .5 MOA groups or better in my rifle, all the way out to 960 yds.

 

[OK243]

Re: 243 Win Loads

Thanks boudin
What kind of velocity did you get (should I expect) out of the Retumbo?
What twist is your rifle? I know that I am pushing the factory 9.125 twist with the 105's but I figure I'll give it a shot. If it doesn't work I'll keep shooting the 87's. I have been able to get sub .5 moa with both the HOR 87 HPBT and the 87 VLD's, both with the IMR 4064.

 

[boudin]

Re: 243 Win Loads

2775 fps outta the same 9.125 twist you've got. It'll stabilize 'em.

 

[OK243]

Re: 243 Win Loads

Cool, I'll give it a whirl.

 

[jeo556]

Re: 243 Win Loads

Here are some additional loads for the 115 DTAC that I found on another thread....

DTAC load info

 

[RangerWalker71]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jeo556</div><div class="ubbcode-body">Below are all the .243 Win loads taken from the ".260/.243/6.5x47/6.5 CM" Page. I did not change any of the info and gave credit to the original authors(??) in bold face above the load info. I just wanted to get all the .243 info in one place and lets face it, I was really bored. Hope this helps.

<span style="font-weight: bold">From "James in Wyoming"</span>
.243
7.5 twist Schneider 26"
115 DTAC
WW brass , prepped and sorted by weight
43.5 H-4350
Federal 210 match
2.820 (mag feeding)
3050 fps, MAD single digits, SD low teens, excellent to 1200, 5100' asl. Great load which can also go up to 100fps faster, but excellent accuracy at this velocity.

<span style="font-weight: bold">From "PepeLP"</span>
.243 Win, Rem 700 18.5" barrel, suppressed

87gr. Vmax 45gr. H414 3,050 fps
75gr. Vmax 45.5gr. H414 3,200 fps

Both loads:
Win brass and Fed GMM primers
OAL 2.710".


<span style="font-weight: bold">From TimKen</span>
243win
26 inch shilan 1-7 twist
rem long action
115 bergers vld
n160 43.2 grains
ogive 2.300
rem brass
br2 primer
avg fps 3045

243win
26 inch shilan 1-7 twist
115 DTAC
n160 42.5
2.300 off of ogive
rem brass
br2 primer
avg fps 2985
shot great 1/2 min if i could do my part

<span style="font-weight: bold">From Trigger Time</span>
Lapua Brass
115 DTAC (BN)
47.3 grains of R-25
Fedral 210M
seated to just fit in AI mag
3180 FPS
27 1/2 inch Krieger with a 1-8 twist.

23.5 MOA to 1000 and it shoots bugholes

<span style="font-weight: bold">From 7mmRM</span>
243 Win
Lapua Brass
105AMAX kissing the lands
41.5 H4350
Fed210M
3065FPS via 25" Hart
Under .5MOA
Low ES.

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
44.7 RL22
Fed210M
3060FPS via 25" Hart
Under .5MOA
Low ES.

The 107 SMK ran equally as well .010 off the lands.

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
41.5 IMR 4350
Fed210M
3115FPS via 25" Hart
Under .5MOA
Single digit ES.

Load-
243Win
Lapua Brass
107SMK .010 jump
105Berger VLD .010 in the lands
105 AMAX kissin the lands
48grns of H1000
Fed210M
3075FPS(avg) via 26" Bartlien (7.7 twist)
Low ES, SD. Bugholes.


<span style="font-weight: bold">From DiGGer</span>
26" ruger KM77VT 1/9 rh twist. Best load
S&B brass
cci primer
105gr AMax
29.5 gr. 4064

.35" 5 shot group

Loaded with Lee powder scoop... Who knew???

<span style="font-weight: bold">From Cat5</span>
SPS- 9:1/8 twist
41.5 H4350
90gr. Scenar
Avg. 3050fps
1/2 MOA 5 shot group @ 800yds (this time anyway)

<span style="font-weight: bold">From Sawgunner 2001</span>
.243 Win

Lapua brass neck sized with a .270" bushing (for 0.003" nk tension)

CCI BR2 primer

47.5gr H1000 (It was a little more accurate than the Re25 was. Also of note, at 90*F ejector swipe and sticky bolt lift were present at 48.0gr H1000)

115gr BN coated DTAC seated at 2.850" COAL (0.030" jump)

2965fps out of a 27" 1-8 twist barrel at 75*F, 60' ASL

<span style="font-weight: bold">From GUNNER75</span>
Surgeon action, Bartlien 8 Twist-28" Heavy Palma, 1500 rounds est.
Std .243 Reamer.
All Loads are set up as follows except for powder charge.
Primer=F210M
Brass=Winchester
OAL=2.855/2.860
OGIVE=3.295
2500ft, 80F

***Will be running a couple of the loads and test for accuracy. The 38gr 107 load has been used quite a bit for 500M Varmint Silhouette matches. Very mild recoil, easy to see shots, very accurate out to 500M.
***The 2950 to 3000fps loads will be retested for accuracy at 200,300,385, and 500M. (Will have to stretch it on out afterwards though). All loads listed below are worthy of shooting the Varmint matches. I was truely amazed at how accurate the 5 shot groups looked on steel while testing these. Just didn't see anything that looked like it wouldn't really group.

All fps avg taken on at least 5 shots, if string was incomplete due to chrony issue, overcast, etc, string was retested.

***Also tested with another 8 twist Bartlien and results were very consistant 30fps faster than what is shown below. This barrel only has 200 rounds through it.

Surgeon 107SMK
2755 fps avg 36.5gr H4350
2766 fps avg 37gr H4350
2778 fps avg 37.5gr H4350
2835 fps avg 38gr H4350 VERY CONSISTANT
(Groups listed below were tested with CED Chrony)
2813 fps avg 38gr H4350
2821 fps avg 38.5gr H4350
2890 fps avg 39gr H4350
2883 fps avg 39.5gr H4350
2889 fps avg 40gr H4350
2921 fps avg 40.5gr H4350
2944 fps avg 41gr H4350
2979 fps avg 41.5gr H4350 Great Groups
3012 fps avg 42gr H4350 Great Groups

Surgeon 115gr DTAC
2825 fps avg 40gr H4350
2849 fps avg 40.5gr H4350
2877 fps avg 41gr H4350
2905 fps avg 41.5gr H4350
2933 fps avg 42gr H4350
2975 fps avg 42.5gr H4350
3010 fps avg 43gr H4350 Great 300yrd group
3024 fps avg 43.5gr H4350 Good 300yrd group
3056 fps avg 44gr H4350 Ejector Swipe

The last load listed at 44gr using 115gr DTAC's was the only load that showed any sign of pressure. First round on string was slight tight bolt, and 2 out of the 5 rounds had slight ejector swipe.



UPDATE ON 8-12-09.
Both of the loads below were tested for accuracy at 300 and 600 yards. Very very impressive results on steel.

Stiller Tac 30, Bartlien 8 twist 24", Rem Varmint Contour. 250rounds
107SMK
3034 fps avg 42gr H4350
(This load also performs very well in the Surgeon, but runs about 20fps slower.)


Surgeon Repeater, Barlien 8 twist 28", Heavy Palma contour. 1550 est rounds.
115gr DTAC BN Coated.
3010 fps avg 43gr H4350
(One round out of 25 had the slightest bolt lift, and the slightest ejector swipe).

<span style="font-weight: bold">From RC2125</span>
.243win 26" 7.7 bartlein #7, 700ft elev

115 dtacs coated/pointed
Lapua brass, necked only
cci standard primers
41gr R-17
.271 coated s neck bushing .0025 neck tension
2.270 oal to ogive
3050 avg fps 85degrees.for ref(40gr=2980,40.3=3000,40.5=3010)
6.4mil to 1k , .5 -.6moa avg, some barrel jump when warmer

105 berger hunting vld
Lapua brass, necked only
cci standard primers
42.5gr R-17
.271 coated s neck bushing .0025 neck tension
2.268 oal to ogive
3150fps 55 degrees. for ref41.5=3050, 42=3090,43=3175-3200 higher sd's)
6.2mil @ 1k , no barrel jump, .5moa (some sub half 5shot groups at 900 when gathering data)

*shot both loads side by side in a sustained 15 mph full value wind. 60 rounds of each load to compare out to 1k, both loads needed the exact same windage... @700 .5mil, @800 .6mil, @900 .8, @1k 1.0

*no pressure signs at all, but the dtacs do exhibit slight barrel jump compared to the 105 load.

</div></div>

Tag For Use

 

[dzlfarmboy]

Re: 243 Win Loads

Tag

 

[jeo556]

Re: 243 Win Loads

New thread with some additional .243 Win data.

 

[Burleyboy]

Re: 243 Win Loads

I'm running Norma brass, cci 250's, and 47.5g H1000 under both the 105 amax or 105 vld. From my 26" brux 8 twist it clocks 3080 and both bullets are 1/2 moa or better accurate.

Bb

 

[trailrider121]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Burleyboy</div><div class="ubbcode-body">I'm running Norma brass, cci 250's, and 47.5g H1000 under both the 105 amax or 105 vld. From my 26" brux 8 twist it clocks 3080 and both bullets are 1/2 moa or better accurate.

Bb </div></div>

Same as above post, but with winchester brass, cci-250 @ 47.5grs H1000 and either 105 amax or 105 vld. Running 26" barrel around 3030 fps for me. Also have been using 41.5grs H4350 with great results as well around 3050 fps.

 

[2Shots]

Re: 243 Win Loads

Been running 41.2 H4350 behind the 115DTAC in Rem brass cci BR primers. Runs about 2975. Trying to get the barrel to run 2,000 rounds so I'm not pushing hard, accuracy is excellent.

 

[RangerWalker71]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jeo556</div><div class="ubbcode-body">Below are all the .243 Win loads taken from the ".260/.243/6.5x47/6.5 CM" Page. I did not change any of the info and gave credit to the original authors(??) in bold face above the load info. I just wanted to get all the .243 info in one place and lets face it, I was really bored. Hope this helps.

<span style="font-weight: bold">From "James in Wyoming"</span>
.243
7.5 twist Schneider 26"
115 DTAC
WW brass , prepped and sorted by weight
43.5 H-4350
Federal 210 match
2.820 (mag feeding)
3050 fps, MAD single digits, SD low teens, excellent to 1200, 5100' asl. Great load which can also go up to 100fps faster, but excellent accuracy at this velocity.

<span style="font-weight: bold">From "PepeLP"</span>
.243 Win, Rem 700 18.5" barrel, suppressed

87gr. Vmax 45gr. H414 3,050 fps
75gr. Vmax 45.5gr. H414 3,200 fps

Both loads:
Win brass and Fed GMM primers
OAL 2.710".


<span style="font-weight: bold">From TimKen</span>
243win
26 inch shilan 1-7 twist
rem long action
115 bergers vld
n160 43.2 grains
ogive 2.300
rem brass
br2 primer
avg fps 3045

243win
26 inch shilan 1-7 twist
115 DTAC
n160 42.5
2.300 off of ogive
rem brass
br2 primer
avg fps 2985
shot great 1/2 min if i could do my part

<span style="font-weight: bold">From Trigger Time</span>
Lapua Brass
115 DTAC (BN)
47.3 grains of R-25
Fedral 210M
seated to just fit in AI mag
3180 FPS
27 1/2 inch Krieger with a 1-8 twist.

23.5 MOA to 1000 and it shoots bugholes

<span style="font-weight: bold">From 7mmRM</span>
243 Win
Lapua Brass
105AMAX kissing the lands
41.5 H4350
Fed210M
3065FPS via 25" Hart
Under .5MOA
Low ES.

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
44.7 RL22
Fed210M
3060FPS via 25" Hart
Under .5MOA
Low ES.

The 107 SMK ran equally as well .010 off the lands.

243 Win
Lapua Brass
105 Berger VLD .010 in the lands.
41.5 IMR 4350
Fed210M
3115FPS via 25" Hart
Under .5MOA
Single digit ES.

Load-
243Win
Lapua Brass
107SMK .010 jump
105Berger VLD .010 in the lands
105 AMAX kissin the lands
48grns of H1000
Fed210M
3075FPS(avg) via 26" Bartlien (7.7 twist)
Low ES, SD. Bugholes.


<span style="font-weight: bold">From DiGGer</span>
26" ruger KM77VT 1/9 rh twist. Best load
S&B brass
cci primer
105gr AMax
29.5 gr. 4064

.35" 5 shot group

Loaded with Lee powder scoop... Who knew???

<span style="font-weight: bold">From Cat5</span>
SPS- 9:1/8 twist
41.5 H4350
90gr. Scenar
Avg. 3050fps
1/2 MOA 5 shot group @ 800yds (this time anyway)

<span style="font-weight: bold">From Sawgunner 2001</span>
.243 Win

Lapua brass neck sized with a .270" bushing (for 0.003" nk tension)

CCI BR2 primer

47.5gr H1000 (It was a little more accurate than the Re25 was. Also of note, at 90*F ejector swipe and sticky bolt lift were present at 48.0gr H1000)

115gr BN coated DTAC seated at 2.850" COAL (0.030" jump)

2965fps out of a 27" 1-8 twist barrel at 75*F, 60' ASL

<span style="font-weight: bold">From GUNNER75</span>
Surgeon action, Bartlien 8 Twist-28" Heavy Palma, 1500 rounds est.
Std .243 Reamer.
All Loads are set up as follows except for powder charge.
Primer=F210M
Brass=Winchester
OAL=2.855/2.860
OGIVE=3.295
2500ft, 80F

***Will be running a couple of the loads and test for accuracy. The 38gr 107 load has been used quite a bit for 500M Varmint Silhouette matches. Very mild recoil, easy to see shots, very accurate out to 500M.
***The 2950 to 3000fps loads will be retested for accuracy at 200,300,385, and 500M. (Will have to stretch it on out afterwards though). All loads listed below are worthy of shooting the Varmint matches. I was truely amazed at how accurate the 5 shot groups looked on steel while testing these. Just didn't see anything that looked like it wouldn't really group.

All fps avg taken on at least 5 shots, if string was incomplete due to chrony issue, overcast, etc, string was retested.

***Also tested with another 8 twist Bartlien and results were very consistant 30fps faster than what is shown below. This barrel only has 200 rounds through it.

Surgeon 107SMK
2755 fps avg 36.5gr H4350
2766 fps avg 37gr H4350
2778 fps avg 37.5gr H4350
2835 fps avg 38gr H4350 VERY CONSISTANT
(Groups listed below were tested with CED Chrony)
2813 fps avg 38gr H4350
2821 fps avg 38.5gr H4350
2890 fps avg 39gr H4350
2883 fps avg 39.5gr H4350
2889 fps avg 40gr H4350
2921 fps avg 40.5gr H4350
2944 fps avg 41gr H4350
2979 fps avg 41.5gr H4350 Great Groups
3012 fps avg 42gr H4350 Great Groups

Surgeon 115gr DTAC
2825 fps avg 40gr H4350
2849 fps avg 40.5gr H4350
2877 fps avg 41gr H4350
2905 fps avg 41.5gr H4350
2933 fps avg 42gr H4350
2975 fps avg 42.5gr H4350
3010 fps avg 43gr H4350 Great 300yrd group
3024 fps avg 43.5gr H4350 Good 300yrd group
3056 fps avg 44gr H4350 Ejector Swipe

The last load listed at 44gr using 115gr DTAC's was the only load that showed any sign of pressure. First round on string was slight tight bolt, and 2 out of the 5 rounds had slight ejector swipe.



UPDATE ON 8-12-09.
Both of the loads below were tested for accuracy at 300 and 600 yards. Very very impressive results on steel.

Stiller Tac 30, Bartlien 8 twist 24", Rem Varmint Contour. 250rounds
107SMK
3034 fps avg 42gr H4350
(This load also performs very well in the Surgeon, but runs about 20fps slower.)


Surgeon Repeater, Barlien 8 twist 28", Heavy Palma contour. 1550 est rounds.
115gr DTAC BN Coated.
3010 fps avg 43gr H4350
(One round out of 25 had the slightest bolt lift, and the slightest ejector swipe).

<span style="font-weight: bold">From RC2125</span>
.243win 26" 7.7 bartlein #7, 700ft elev

115 dtacs coated/pointed
Lapua brass, necked only
cci standard primers
41gr R-17
.271 coated s neck bushing .0025 neck tension
2.270 oal to ogive
3050 avg fps 85degrees.for ref(40gr=2980,40.3=3000,40.5=3010)
6.4mil to 1k , .5 -.6moa avg, some barrel jump when warmer

105 berger hunting vld
Lapua brass, necked only
cci standard primers
42.5gr R-17
.271 coated s neck bushing .0025 neck tension
2.268 oal to ogive
3150fps 55 degrees. for ref41.5=3050, 42=3090,43=3175-3200 higher sd's)
6.2mil @ 1k , no barrel jump, .5moa (some sub half 5shot groups at 900 when gathering data)

*shot both loads side by side in a sustained 15 mph full value wind. 60 rounds of each load to compare out to 1k, both loads needed the exact same windage... @700 .5mil, @800 .6mil, @900 .8, @1k 1.0

*no pressure signs at all, but the dtacs do exhibit slight barrel jump compared to the 105 load.

</div></div>
TAG for data

 

[hahco]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: LOBO</div><div class="ubbcode-body">
I need a bullet recommendation for use on white-tails that is good for 10 yards to 200 yards. I've been thinking of the Sierra 100 gr FBSP, Nosler Partition 90 or 100 gr, and the Barnes TTSX in 80 gr. Anyone used these bullets for white-tail? </div></div>

I use 100 g sierra pro hunters in my Steyr ... ahem ... pro hunter. They work great for the purposes you describe. I also have used the 85 g TSX and get great results. I typically shoot the pro hunters because they cost a lot less than the TSX and I like shooting the gun.

BTW, I'm in hattiesburg and looking for a good place to shoot around here if you've got any recommendations.

 

[WyomingShooter]

Re: 243 Win Loads

Hornady 105 AMAX
Hornady brass trimmed to 2.035"
41.5 grains H4350
Federal 210M primer
COAL 2.800"

15 rounds fired over CED Millenium chronograph
7/6/12 5280'ASL 82 degrees F DA=7987'

Avg 3108 FPS
ES 37
SD 9

Drop at 600 yards = 2.5 mils

 

[RedGoat]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: WyomingShooter</div><div class="ubbcode-body">Hornady 105 AMAX
Hornady brass trimmed to 2.035"
41.5 grains H4350
Federal 210M primer
COAL 2.800"

15 rounds fired over CED Millenium chronograph
7/6/12 5280'ASL 82 degrees F DA=7987'

Avg 3108 FPS
ES 37
SD 9

Drop at 600 yards = 2.5 mils</div></div>

Lots of good info, but no barrel length....

 

[Huckleberry75]

Re: 243 Win Loads

41.0gns of Varget and a 75gn Vmax are running about 3400 in a buddies rifle. I will have to harass him for load specifics. I plan on testing this out on Sunday and will post results.

 

[littlerascal56]

Re: 243 Win Loads

The coyotes are thick this year, so I just set up a new Savage 14 American Classic in .243 to do some calling.

Loaded 87 VMAX over 36.0 Varget in new WW virgin brass. I started low with this load, as I am using FGGM 215M magnum/match primers. I prefer these for winter hunting, as the ammo gets pretty cold when sitting on a stand for a while. There is still plenty of case space with that bullet seated .004 into my lands.

Fired 20 rounds yesterday w/30mph winds at the range. All 100 meter groups stayed under an inch, with no pressure signs. Plan to go to 36.4 gr Varget next, and shoot some groups this weekend. Hodgedon lists 36.5 Varget as the MAX load for 85 and 90 grain bullets.
UPDATE: Fired 30 rounds today with 36.4 gr Varget. Groups had a lot of verticle spread as thin barrel heated up. The 36 grain load was more consistant.

Going to pick up some H4350 tomorrow, and start over. I know I will have much better case fill than Varget.

 

[6brshooter]

Re: 243 Win Loads

I have 4 243 with a 5th in the works. The older2 are 1-8 twist 26&28" barrels they like 105 Berger vld hunting bullets. Win brass , cci br2, and h4831sc. The 28" LW uses 43.0 to get 3005fps with 4.xx sd, the 26" brux needs 43.5 gr for 2998 fps with 6.xx sd. My 24" criterion remage shoots 107 smk with 42.0 gr h4350@3130fps with 8.xx sd. Brass and primers the same. I picked up a savage predator in 243 with a 22" barrel, it drives 55 blitz kings at 3980. 45.5 gr of h 4895 in that load. Zeroed at 300 yds it is purely awesome on called yotes, from 0-350 just center up the shoulder blade and shoot. It will be a boiler room to spine shot. Time of flight is so short under400 yds wind is negligible in drift in Illinois farm country

 

[groundhogbuster]

Re: 243 Win Loads

Rem 700 SPS 1/9.125twist in BC Light Var stock for 105Amax
Win Case
Win Mag Primer
45.9gr H1000
loaded .10 from lands
5 shots .367"
3 shot groups .2's
Same gun 75gr Speer hps
Win Case
CCI BR primers
46.0g IMR4350
Loaded .20 off lands
1/2 to sub 1/2 moa

87gr Vmax
Win Case
CCI BR primers
43.5 gr IMR4350
loaded .20 off lands
Excellent to 1K, with .2's, .3's at 100yd

Worked alot with the 105 Amax, and only 2 powders shot good, Retumbo, and H1000, with H1000 being about .4" better at 100

 

[Sportin Wood]

Re: 243 Win Loads

So guys I am in the process of building a 243 as we speak off a AIAE MKII (hopefully)... I already know I will be running it suppressed, so I'm thinking no longer than a 24" bbl, 7.75tw 5r. I will be shooting either the 115 DTACS or 107 SMKS. Has anyone come up with "THE" powder to run these heavier bullets? I have a tone of CCI Br2 primers, so I will be using those with most likely Win brass. I like to use Hodgdon powders and stay away fro Reloader.

 

[6brshooter]

Re: 243 Win Loads

I like h4831sc in longer barrels and 105 gr, but with the shorter barrel h4350 works better. The faster burn rate gets a more complete burn in the shorter tube. I really have not seen the advantage of the 115 dtac over the 105 vld or hybrid.

 

[Apexpredator65]

Re: 243 Win Loads

I did a forum search but didn't find quite what I was looking for. Of course that could be because I'm on my phone at work.

I have an Armalite AR-10 in .243 and plan on using Berger and Sierra 95grain VLD bullets. I'm looking for people that gave experience with this rifle and this weight bullet. Load suggestions? So far the factory ammo I've shot through her she seems to like the 75 to 95 grain pills.

If I missed a similar post elsewhere I apologize.

Thank you ladies and gentlemen.

 

[Apexpredator65]

Re: 243 Win Loads

Anyone have any experience with loading 243 in an AR10? Mine is a 1:10 twist 20 inch barrel.

I'm planning on using 95 grain Bergers and Sierras. Looking for Powder suggestions and load recipes.

 

[Hawk45]

Re: 243 Win Loads

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Apexpredator65</div><div class="ubbcode-body">Anyone have any experience with loading 243 in an AR10? Mine is a 1:10 twist 20 inch barrel.

I'm planning on using 95 grain Bergers and Sierras. Looking for Powder suggestions and load recipes. </div></div>

55's to 100's should work in a 1/10 twist, but you will have to check with your exact barrel on the low/high ends. H4350 is a good all around powder.

 

[223ai]

Re: 243 Win Loads

22" Brux
Suppressor
42.5 H4350
107 smk
Winchester case
Tula 7.62 Primer
2.815 OAL"

2945 FPS, .25 moa, 15 ES and 7 SD

 

[Radar360]

Re: 243 Win Loads

My lefty Remy SPS-Varmint likes various pills. I have used mainly SMK's. 70 grains, up to and including 107. I've posted my load for the 70's before.

Here what works very well in 107's in my lefty .243.

107 SMK HPBT #1570;
IMR 4350 w/40.2g - 40.5g (40.3 = Avg Speed 2980fps & SD 8.18!);
Winchester Brass; CCI BR2

Anything from 40.2 to 40.5 results in sub-MOA @ 100 yards.

Ordered a suppressor recently for it... will see how this changes...

 

[Rmitch223]

Re: 243 Win Loads

Rem. 700 SPS-Varmint 26" barrel 9.125 twist.

105amax
40gn of IMR-4350
Lapua Brass
Federal 210M
Seated at 2.800" OAL
sub moa out to 300.

I'm thinking about trying the 105s with Retumbo and magnum primers next. Ive heard some really good things about this load.

 

[boudin]

Re: 243 Win Loads

You may want to give CCI 200 primers a try with the Retumbo. Makes for a .5-.75 MOA load in my 9.125 twist 700.

 

[Shootinsurveyor]

22" Shilen Match barrel
105 Amax
39.0 H4350
Win Brass
Length measured to ogive-2.245
2925 fps 5 shot string
SD 11

 

[Sportin Wood]

Local store finally got some H4350 in.... bought 6lbs... time to get to work!!!

 

[vpexp]

GAP 243 26" 7.5 Bartlein
44 grains VVN560
115 Berger VLD
Lapua Brass
210M
3030 fps

 

[MajorHeadTrauma]

This is a very helpful thread.
Thank you

 

[2clicks]

Remington 700 sps varmint 26 inch Barrel
McMillan A1 stock

87 gr VMax
36.5 grs Imr 4064
Winchester brass and primer
Mag length

10 shots 600 yrds wind was getting me on some of these its a great load though good to 750 yards ran out of room there. The shots aren't centered because the Nikon scope I had was a piece of crap and would not track...

 

[gravityoutdoors]

1/8 twist Shillen 26" 7 contour barrel w/ Remington Action
2.85 oal and chamber was cut to be .020 off lands
105 Amax
Remington brass
IMR 4350 42grains
AVG speed 2993

goes to 700 in 4.1 mils with a DA of 1200
sub 1/2 moa

with 40 grains .15 and less 3 shot groups, the speed just is not there.

 

[demolitionman]

TAG, after reading through a lot of this I'm beginning to wonder if maybe I'm just depriving my case a few grains of go go juice. I haven't stepped above 41gr h4350 yet. My accuracy is terrible. Ill try putting more coal to my 105's and maybe they will start to stabilize in my cbi 1/8twist. Currently loaded everything imaginable off and into lands with no luck...all the way from 39 gr to 41. I seem to only get moa accuracy jammed with 40.5 to 41 grains.