6mm BR

#1,051
Here some results from my second outing with the GAP 6mm BR, was a bit warmer out. Tried a different target too. Think I'll up the charge weight and do some load testing.

Maybe it's time to get some needed cataract surgery too! Old eyes are straining some.

1000006160.jpg

1000006159.jpg

1000006161.jpg
 
  • Like
Reactions: steve123, lash and Schütze
#1,052
TDWilson said:
i’m loading to 30gr for the comp this weekend. That will put the barrel’s round count at > 180.
My plan:
-shoot the comp and get my ass kicked
-clean the rilfe
-retest 29.4 to 30.4 in 0.2gr increments (10 rounds each)
-post results
Click to expand...
I threatened back in Feb I would do some testing and post some results at a later time. Well,… here we go.
This is where we were after the first 80 rounds:

Lapua, CCI450, Varget, Berger Hybrid 105

29.4gr = avg 2728, sd 5, es 13
29.6 = 2749, 4, 10
29.8 = 2781, 11, 31
30 = 2806, 6.7, 15
30.2 = 2814, 12, 31
30.4 = 2848, 8, 19

The rifle now has 3 one-day club matches and about 500 rounds now. It has changed quite a bit since the original post in Feb.

Components unchanged as above, I was loading 30gr. A typical 10 shot string would yield the following results:
mean 2890
SD 10
ES 30

I went back to the range with some reduced loads and obtained the following data:
IMG_3485.jpeg


On the target, there was vertical stringing with the 29 and 28.5gr loads, while the 29.5gr load looked pretty good. I can only resolve 5 of the 10 shots on the target, so that’s the best I can do with the target analysis. The other 5 shots are in there somewhere! 😀 I’m nowhere near as good a shot as some of you guys are, but I think I can improve on my results at competitions with this load.

Ballistic-X-Export-2024-07-07 12:54:36.080199.jpeg


So, I’ll probably stick with 29.5gr unless something changes over the next 2,000 rounds!
 
  • Like
Reactions: Slides, Schütze, Defender3 and 1 other person
#1,054
Just purchased a Savage model 12 F Class in 6mm BR Norma 30" barrel 1-8 twist. Anyone ever used the Hornady 110gr A-tips? I'm shooting 600-800 yds.
do I still zero at 100 yds. or is 200 better?

can anyone tell me what the scope mount pattern is for this model? short action? does it need a pic rail to mount on? or can you direct mount the rings without a rail? The scope has a 34mm tube what rings are recommended? Can anyone tell me the pattern and screw size?

I intend to get lighter projectiles Hornady 108 ELD-M. opinions?

Thanks
texashaag
 
#1,056
Tokay444 said:
8 twist might be too slow for 110s, and 108s. It’s marginal for 105s.
Click to expand...
8tw at 2950 in my short barrel 6cm does just fine with 109s, 108s, 115s, but I haven't tried the atip. Although that 109 eldm is dimensionally similar cept the tip, I'm 3k elevation and typically 4k or higher DA.

@TexasHaag what DA you typically shoot at? That'd be my determining factor.
 
#1,057
4O6shootist said:
8tw at 2950 in my short barrel 6cm does just fine with 109s, 108s, 115s, but I haven't tried the atip. Although that 109 eldm is dimensionally similar cept the tip, I'm 3k elevation and typically 4k or higher DA.

@TexasHaag what DA you typically shoot at? That'd be my determining factor.
Click to expand...
We’re in a 6BR thread. No one is getting a 110 to 2950.
 
  • Haha
Reactions: Schütze
#1,059
TexasHaag said:
Just purchased a Savage model 12 F Class in 6mm BR Norma 30" barrel 1-8 twist. Anyone ever used the Hornady 110gr A-tips? I'm shooting 600-800 yds.
do I still zero at 100 yds. or is 200 better?

can anyone tell me what the scope mount pattern is for this model? short action? does it need a pic rail to mount on? or can you direct mount the rings without a rail? The scope has a 34mm tube what rings are recommended? Can anyone tell me the pattern and screw size?

I intend to get lighter projectiles Hornady 108 ELD-M. opinions?

Thanks
texashaag
Click to expand...
This rifle is an entry level f-class rifle and most of these like the 105-108 weight range offerings and yes it will be stable in 8 twist barrel.
You should be looking for a 20 MOA scope base (picatinny rail) fitting a Savage model 12 or direct mount rings but rail would be better.
Any 34 mm scope rings for picatinny rail will be fine and would recommend at least 1.25" height. 100 yard zero is what most are using.
 
  • Like
Reactions: Schütze, lash and TexasHaag
#1,060
ballisticdaddy said:
This rifle is an entry level f-class rifle and most of these like the 105-108 weight range offerings and yes it will be stable in 8 twist barrel.
You should be looking for a 20 MOA scope base (picatinny rail) fitting a Savage model 12 or direct mount rings but rail would be better.
Any 34 mm scope rings for picatinny rail will be fine and would recommend at least 1.25" height. 100 yard zero is what most are using.
Click to expand...
Thanks just the kind of info I was hoping for....
 
  • Like
Reactions: ballisticdaddy
#1,061
TexasHaag said:
Just purchased a Savage model 12 F Class in 6mm BR Norma 30" barrel 1-8 twist. Anyone ever used the Hornady 110gr A-tips? I'm shooting 600-800 yds.
do I still zero at 100 yds. or is 200 better?

can anyone tell me what the scope mount pattern is for this model? short action? does it need a pic rail to mount on? or can you direct mount the rings without a rail? The scope has a 34mm tube what rings are recommended? Can anyone tell me the pattern and screw size?

I intend to get lighter projectiles Hornady 108 ELD-M. opinions?

Thanks
texashaag
Click to expand...

No but the 106 A-Tips shooting LIGHTS OUT in my 28" 7.5 twist Bartlein 6BR. Consistently 5 shot groups @ 100yd in the 0.1's and crazy consistently small groups out to 800yds (farthest Ive tested them). 2866 SD 4 across 30rds. 4.3 Mils to 700yd and 3.3Mils @ 600yd and shots stack right on top each other.









600yd - Two different 3 shot groups








30.2gr Varget, 0.01" off lands, CCI450, 2xLapua

15 shots, 3 x 5 shot groups at 100yds


 
  • Like
Reactions: JKW70, Schütze, delfuego and 3 others
#1,062
Tokay444 said:
We’re in a 6BR thread. No one is getting a 110 to 2950.
Click to expand...
I can easily get 109gr Bergers to 2950 from a 28" 6br. Would I run it there all the time? Likely not. Applied ballistics says a 110 atips is stable at 1000' DA from an 8tw at 2780fps. SG needs be 1.4 or higher in my experience for expected bullet performance. I know Berger says 1.5 but I've not seen the difference. I have some rifles that are sg of 1.6, and when it's cold/winter it drops to 1.4X in my climate. The targets look the same at 600-800y other than drop.
 
  • Like
Reactions: Schütze, Haney and lash
#1,063
Based on the velocity I get from a 28 inch 6br with 110atip with a barrel that hasn't sped up yet with 30.5gr varget I imagine a 32 inch barrel should be dead on 2950fps or eben a touch faster. I went 28 inch so it could be a general purpose gun but if I was serious about F class mine would have been 32 inch.
 
  • Like
Reactions: Schütze and Haney
#1,065
delfuego said:
Are these only available for cool kids right now? I can't seem to find 106's on Team Red's website.
Click to expand...
They were a limited run. Sold by powder valley as seconds last year. I had a few thou but sold them. Keep an eye out for them, they're allegedly a good bullet from multiple sources. G7 in low to mid 280s. I sampled a few hundred, the base to ogive wasn't near as consistent as over the counter atips in the same lot, I also had several that had non uniform distorted jackets.
 
#1,066
4O6shootist said:
I sampled a few hundred, the base to ogive wasn't near as consistent as over the counter atips in the same lot, I also had several that had non uniform distorted jackets.
Click to expand...

They weren’t consistent box to box, or within a single box? I measured 30 or so from one of the boxes I got and they were stunningly consistent in measurements.
 
#1,067
TheOfficeT-Rex said:
They weren’t consistent box to box, or within a single box? I measured 30 or so from one of the boxes I got and they were stunningly consistent in measurements.
Click to expand...

Same, the few thousand I got were crazy consistent also base to ogive also. overall length varied slightly and I sorted them. For a test, I actually grabbed some of the shortest OAL and longest OAL and mixed them and loaded them and thats the 3 x 5 s hot groups posted above so OAL seems to not mater at all. But, weight and Base to Ogive was very consistent
 
#1,068
padom said:
No but the 106 A-Tips shooting LIGHTS OUT in my 28" 7.5 twist Bartlein 6BR. Consistently 5 shot groups @ 100yd in the 0.1's and crazy consistently small groups out to 800yds (farthest Ive tested them). 2866 SD 4 across 30rds. 4.3 Mils to 700yd and 3.3Mils @ 600yd and shots stack right on top each other.









600yd - Two different 3 shot groups








30.2gr Varget, 0.01" off lands, CCI450, 2xLapua

15 shots, 3 x 5 shot groups at 100yds


Click to expand...

I can not find 106gr A-Tips are they Hornady?
 
#1,069
TexasHaag said:
I can not find 106gr A-Tips are they Hornady?
Click to expand...

Yes, there is a whole thread on them. They were made for the DOD specifically. A few places had them in stock over the past 6 months or so. They are currently out of stock.


www.snipershide.com

Hornady 106gr A-tip factory seconds

Didn’t notice any like that. Ill have to keep an eye out when loading. I just got 300 more myself. I haven't looked at them yet. I didn't notice any in the first batch I got either.
www.snipershide.com www.snipershide.com
 
  • Like
Reactions: lash
#1,070
TexasHaag said:
Just purchased a Savage model 12 F Class in 6mm BR Norma 30" barrel 1-8 twist. Anyone ever used the Hornady 110gr A-tips? I'm shooting 600-800 yds.
do I still zero at 100 yds. or is 200 better?

can anyone tell me what the scope mount pattern is for this model? short action? does it need a pic rail to mount on? or can you direct mount the rings without a rail? The scope has a 34mm tube what rings are recommended? Can anyone tell me the pattern and screw size?

I intend to get lighter projectiles Hornady 108 ELD-M. opinions?

Thanks
texashaag
Click to expand...
Thanks for everyone's input...

I intend to try the 110 A-Tips in this new rifle, using 24gr Varget, CCI 450 primers.
I also purchased a box of the new Hornady 80gr ELD-VT.
I'm also looking at Berger 105gr Hybrid.... any opinions? they look to be VERY popular for the 6mm BR Norma.
I'm going to use Peterson Brass, I prefer USA made products.
I'll zero at 200yrds.
 
#1,071
TexasHaag said:
Thanks for everyone's input...

I intend to try the 110 A-Tips in this new rifle, using 24gr Varget, CCI 450 primers.
I also purchased a box of the new Hornady 80gr ELD-VT.
I'm also looking at Berger 105gr Hybrid.... any opinions? they look to be VERY popular for the 6mm BR Norma.
I'm going to use Peterson Brass, I prefer USA made products.
I'll zero at 200yrds.
Click to expand...
I use 105 Bergers in Peterson brass over 30.2g Varget for 2950. They are money.
 
  • Like
Reactions: TexasHaag and Schütze
#1,076
TheOfficeT-Rex said:
They weren’t consistent box to box, or within a single box? I measured 30 or so from one of the boxes I got and they were stunningly consistent in measurements.
Click to expand...
I had 20 boxes, pulled 20+- from 10 random boxes, measured. My results are in the 106 atip thread. There were two distinct bto groups, with a handful of outliers. They all had same part number on the box. Hard to tell what lots, but these were "seconds" likely just scooped from bags and dropped into boxes, all mixed off the production line I'm thinking.
 
  • Like
Reactions: TheOfficeT-Rex
#1,077
padom said:
No but the 106 A-Tips shooting LIGHTS OUT in my 28" 7.5 twist Bartlein 6BR. Consistently 5 shot groups @ 100yd in the 0.1's and crazy consistently small groups out to 800yds (farthest Ive tested them). 2866 SD 4 across 30rds. 4.3 Mils to 700yd and 3.3Mils @ 600yd and shots stack right on top each other.









600yd - Two different 3 shot groups








30.2gr Varget, 0.01" off lands, CCI450, 2xLapua

15 shots, 3 x 5 shot groups at 100yds


Click to expand...

The 106's are no longer in stock anywhere I could find....
 
#1,079
I and read that the 6mm BR Norma brass has a smaller primer hole... I have also read that the CCI SR Magnum 450 primers are commonly used, is there a need for magnum primers? I also see many shooters using CCI BR4 primers. Which are better? I would thing the BR4 are more consistent than magnum...

texashaag
 
#1,080
TexasHaag said:
I and read that the 6mm BR Norma brass has a smaller primer hole... I have also read that the CCI SR Magnum 450 primers are commonly used, is there a need for magnum primers? I also see many shooters using CCI BR4 primers. Which are better? I would thing the BR4 are more consistent than magnum...

texashaag
Click to expand...

I’ve had great experiences with the 450s. My SD over 15 rounds hovers around 4 and my ES is 10-11. I went with them because they were easier to find in stock and I’m going to stick with them.
 
  • Like
Reactions: TexasHaag and alcap
#1,081
I also used CCI 450's when I shot a BR. The only way to know if anything will do what you want is to test it. But if there is a preponderance of shooters using one specific component over another, there might be a reason for it.
 
  • Like
Reactions: TexasHaag
#1,082
TexasHaag said:
I and read that the 6mm BR Norma brass has a smaller primer hole... I have also read that the CCI SR Magnum 450 primers are commonly used, is there a need for magnum primers? I also see many shooters using CCI BR4 primers. Which are better? I would thing the BR4 are more consistent than magnum...

texashaag
Click to expand...
I’m having great results with federal 205M.
 
  • Like
Reactions: TexasHaag and Schütze
#1,083
Lot of guys using 450s cuz that what they can find. I run 450s in 22br 6br, 22gt 6gt, 22cm, 6cm, 25cm, 6.5cm. Will also be using them in my new 25x47 when it arrives. I've had no issues keeping es in low teens, SD of 4-5, half moa 10-20 shot zero groups, half or better moa at 400y on paper. Hits on steel to 1300y. The only cartridge I've had a tough time getting to shoot was a 25gt I had spun on a 7.5tw brux, and I think it was a poor barrel, as it fought me on 3 bullets and 3 powders. I threw it in the trash, got a new CRB Comp 7.5tw and went 25x47, as the gt case doesn't have enough ass to run 2750-2800 without being near preasure.
 
  • Like
Reactions: TackDriver2 and alcap
#1,084
Well, I got this new rifle out to the range this weekend.... I fired a ladder using the 105 hybrids' from 29gr to 31 @ .3gr. I'm going to stick with 30gr even. At 100yrds I was able to stack then one on top of the other for a .35" group, which I am very happy with. Here are the particulars. It was raining and the targets fell apart or I'd post a pic....
Peterson brass x1
CCI #450 primers
Hodgdon Varget 30gr.
Berger 105 hybrids
2820fps @ 3 meters (Ver. 1 Labradar)
ES 12.3 (10 shot average)
SD 3.45
CBTO 2.740 (15 thousandths of lands)

Savage model 12 F Class
30" barrel 1-8 twist

Thanks for everyone's input and feedback.
texashaag
 
Last edited:
  • Like
Reactions: Slides, wbbh, lash and 1 other person
You must log in or register to reply here.

Similar threads

D
SOLD Impact 737 6br barrel
Replies
2
Views
418
ifgator
ifgator
BravoSector1
6mm BR vs 6mm BR Norma...are we talking the exact same cartridge???
Replies
6
Views
418
MarkyMark007
MarkyMark007
K
Remington 7.5 vs CCI 450 in 223/223AI
Replies
6
Views
782
Aftermath
Aftermath
Bolt Thrower
SOLD Stuteville Impact 6mm GT Prefit
Replies
7
Views
452
Bolt Thrower
Bolt Thrower
Slides
110Atip results in 8 twist 243/6creed?
Replies
1
Views
267
TexasHaag
TexasHaag
Top Bottom
Back
Home
Forums
Merch
Alerts