308 win, what's your favorite IMR4064 recipe?

[captcoop]

I've searched all around this forum and found spotty data for this powder. My barrel is a Shilen select match 1:10 twist @ 23"
I found some 4064 this morning and picked it up. IMR 4895 is my steady used powder for now. I've got 155 Scenars, 168 SMK's hornady 168 bthp match and 175 SMK's. primers are Federal 210m, and Winchester. Brass is mixed Lapua, Winchester , and FGM. I'm hoping to get a new load figured out.

 

[msiebert]

My go to load back in 1991 for the 308 was 43.5 grains of IMR4064 behind a 168SMK loaded in L.C. military brass. I didnt find alot of difference between large rifle and large rifle match primers. I did deburr the flash hole and outside neck turn the cases. I think they were L.C. 58. The biggest prep step was annealing the neck and shoulders...we went from 50-65fps extreme spread to like 5-10 fps and saw much better groups at long range {600 yards plus}

 

[Fuzzball]

43.2 grains.

 

[l115a3]

43 - 43.5 gr.

 

[700sendero]

I believe the old FGMM175 smk load is 42.2 4064...SOCOM load is 41.7...both in federal brass...

 

[insight3b]

For my M1A's it was 41.5gr and for my bolt guns it was 44.3gr under a 168smk in LC brass with CCI large rifle primers

 

[m1match]

My recipe is Lake City 94 Match cases, CCI BR2 primer, 175 SMK or 168 SMK, and 42.2 grains of IMR 4064. I shot this load for over a decade in my match tuned Garands and in my precision bolt guns. Accuracy is excellent, and in a 24" Rock barrel, velocity is around 2615 fps.

 

[3-0-hate]

44.3gr 4064 under a 175 SMK, Fed brass and a Rem 9 1/2 primer.. 1/2 MOA in my gun (stock R700 SPS) and was boringly accurate to 600 and good out to 1025.

 

[NoFail]

It's such a good powder for .308.

168 gr SMK's
43.5 gr 4064
Winchester LRP
Hornady match .308 brass
2.810" OAL

ES's of <5 fps are not uncommon and in fact I have come to expect it. 4-8 fps in 5 shot groups is the norm.
I have a Varget load (42.9 gr) with the 168 AMAX and it likes at 100 yards to group them tight < .75" out of my LR-308. But the ES's are no where near as good as with IMR 4064, everything else being the same.

168 AMAX and 44.5 gr IMR 4064, 2.810" & the Winchester LRP in the Hornady brass is a goody too. Same great low ES's too.

Favorite primer is the WLRP for IMR 4064, then the federal primer. Now if only I can find some more.
But I've got 500 168 SMK's shipped & on the way because of a tip from guy this forum, thanks guy..

I never tried IMR 4895 but the H4895 with 168 AMAX or SMK's & 43.6 gr under them is pretty awesome too, yes'ery Bob!!!

 

[captcoop]

Great info guys, I now have a really good starting point . I'm going to try it with my 175 SMK's.

 

[Rayza]

My IMR 4064 Load

I've been using the load below with my .308...24" Heavy Barrel...1/10 Twist...and getting .5 MOA to Sub .5 MOA Groups...all 3 rounds touching at 100 yards. I hit a 4" steel plate at 1000 yards using this load.

IMR 4064 - 42.8gr
Once Shot, Fire-Formed, but Re-Neck Sized Brass, OAL - 2.010 (Remington Premier Gold Match Brass)
CCI Large Rifle Primers #200
Berger Long Range Target BT 175gr BC: G1 - .515, G7 - .264
COAL - 2.840
Muzzle Velocity - Avg. 2,675 fps

 

[rangeryo]

I run two loads, both of which my 1:11 hawk hill barrel loves.

FGM Brass
41.8 gr 4064
2.8 COAL
Fed 210 Primers
175 SMK
(Yes this is the factory GMM Load)

Hornady Match Brass
43.4gr 4064
2.830 COAL
Fed 210 Primers
175 SMK
Velocity - 2740

5 shot with above load. 1 pulled..

When i was running a 1:12 barrel I had pretty good success (~.5" 200yd groups) with 155 scenars and 43gr of 4064 in my Hornady Match brass.

 

[Daryl licht]

My best for accuracy out of a 20" barrel is 41.7. It's a 1" @ 300yds. I've had no problems out to 1150 or so with 175 berger otm's. Not done much with the Sierra.

 

[wayfastwhiteie45]

175 smk
lapua brass
210m primers
42.4 gr of 4064
seems to be my sweet spot for you rifle

 

[JMGlasgow]

43.8gr.
Winchester case
Winchester LR primer
175 SMK seated to 2.91 COAL.
Just finished a ladder test at 300 yards. This was what I settled on.

 

[Brux]

42.5
Fed Brass
210 Prmers
2.800 OAL
168 SMK's
Shoots this out of my AO build.

 

[mforsch]

IMR 4064 @ 43.0 to 44.0 usually works nicely for the 165 to 175 bullets. The different varieties of makers bullets vary about 1/2 grain between them based on equal velocity. Spent some time in the southern states and a lot of time on the west coast (where it can get really hot). In that regard, I find that backing off about a half grain for 90* plus temperatures gives reasonable pressure indications-----with room to increase the loading based on your own preferences. In the desert region I use 43.5 throughout the warmer days and 44.0 for the cooler days. Just tested a new batch of Lake City brass last week at 96* F; (disposed of all my old brass); so was verifying that the loads were still happy.----------Keep in mind that I said Lake City brass; (slightly less internal volume)----the Winchester brass will take a half grain more, yet develop a comparable pressure.------Good luck with your efforts...

 

[M36]

Just started over with Lapua brass.

175 SMK
42.1 4064
210M
Lapua brass
OAL 2.825

Last time I shot to check the load I was getting an average of 2650 from my Rem 700 SPS Varmint and .295 MOA vertical spread at 300 yards.

 

[PinesAndProjectiles]

Tagging for reference. Great info, thanks everyone.

Sent from my NSA tapped mobile device using Tap-a-Talk

 

[TacticalBoltKnob]

42.2 grains with a 178 Amax or 175 SMK gives me .5" accuracy and 2650fps on average.

42.9 grains with a 168 Amax gives me .5" accuracy and 2710fps on average.

This is out of a 24" 5R Savage barrel with a short throat so I am seating the bullets pretty deep, about 2.773" - 2.805", depending on the bullet.

 

[Fltmedic1sg]

41.7 to 41.9 using 175SMK or 178AMAX gives me sub MOA at 100 yards with a 700 AAC-SD 20". Roughly 2465 fps average for the 178 AMAX using 41.7 out of this rifle.

 

[sharpshooter437]

I have read in multiple places that the "FGGM" load is 41.8 grains of imr 4064...however I took ten fggm 175 apart and got an average weight of 43.15 grains . definitely looks to be imr 4064. Curious as to where all the other info on the 41.8 grain load came from? My 20" ltr worked well with 43.1 grains

 

[Hunt]

43.1 gr IMR4064 works great with my 20" Krieger. This is with a 178 AMAX in Win. brass. If you look at Dan Newberry's site, I think he mentions that 43.0 gr is the OCW.

I have read in multiple places that the "FGGM" load is 41.8 grains of imr 4064...however I took ten fggm 175 apart and got an average weight of 43.15 grains . definitely looks to be imr 4064. Curious as to where all the other info on the 41.8 grain load came from? My 20" ltr worked well with 43.1 grains

 

[Fltmedic1sg]

I just finished a two day course with Dan Newberry in which I fired 179 hand loads of LC12LR Primed Brass, 41.8 grains of IMR 4064, 178 AMAX at 2.81" OAL out of a Remington 700 Police 26" 1/12 twist and reliable hit targets between 200 and 1100 yards. I was also able to use the same hand load in my Remington 700 AAC-SD 20" 1/10 twist out to 900 yards. Dan runs a great course. I learned a lot and had a great time both in the classroom and on the range. A shot out to Dan and a big thank you for all of your assistance!

 

[Tangodown911]

Rem. 5r 20"
FC neck sized
Br2
Imr4064 43.2g
175SMK
2.810"

Load is .4"-.55" and shoots moa to @900. The load is also completely interchangeable with rl15. Same speeds,POI, etc. Junk fgmm brass has been fired 8x and still shoots the same. I think it's capable of more but my current glass suffers.

 

[yej0001]

Plenty of excellent info. Thanks for sharing it

 

[1Sg (ret)]

Tag

 

[agbm]

Tag

 

[Aimsmall55]

185 Berger juggernaut

 

[DaJudge]

lots of great information gentlemen, thank you.

 

[malsa82]

Tag. I have pretty good luck with 41.7gr under 175 SMKs. I was attempting to mirror the MK316 MOD0 load used by the military and it seems to work well in my rifle (Factory Remington 22"). It shoots great but is about 150fps slower than my "go to" load of 44.5gr Varget. I compared these two loads at 500 yards and the 4064 load was about 2 MOA lower than my POI with the Varget load, both being equally accurate at that range.

Lots of good info here and I think I'm going to revisit my load development with 4064 as it seems to be much more available than Varget lately.