6BRA load data

[64Rambler]

Just hard to go past the almost universal load for the 6BR/BRA of 30gr Varget and Sierra 107's....
That 29.8 & 30 are real keepers...! Now for some 10 shot groups at 300yd & 600yd.

I found some love at 30.4 gn Varget. Need to look at this a bit more - didn't have enough of this Lot to load for 3 X 600.

 

[Fire Dog]

Not everyone chooses Varget for a BR-A, I decided to give a go last sept as I mentioned earlier, it tuned pretty easily at 500 yards. I took to a 1 k match last weekend.
It shot well.
J

Is that + .009 a jam on those VT 103’s?
That 31.3 of Varget looks to work very well. CCI 450’s?
How did the 103’s hold up over a K ?

 

[JFrank]

Is that + .009 a jam on those VT 103’s?
That 31.3 of Varget looks to work very well. CCI 450’s?
How did the 103’s hold up over a K ?

Yes, those are in the lands .009 beyond touch, l’m currently running BR-4 but the load will shoot either -4 or the 450’s
The load held up pretty decent, I had a few issues with managing conditions.

 

[Fire Dog]

Yes, those are in the lands .009 beyond touch, l’m currently running BR-4 but the load will shoot either -4 or the 450’s
The load held up pretty decent, I had a few issues with managing conditions.

Ah yes, with “conditions” perfect the 103’s will do the job and I have shot a lot of them myself but find that they suffer a bit at that distance with wind and mirage and hence now gone back to 107’s for my F Open 6BR.
I did shoot a 200.14 at 600 with 103’s and second string was 100.9

 

[Tomiboy]

Nice shooting Jim!

 

[JFrank]

Nice shooting Jim!

Thanks.
There is still plenty of room for improvement.

 

[Lynn313]

I acquired a Mod 70 in an Anschutz prone stock and a Kreiger 1/7.5 30" barrel in 6 BRA from the owner who had been letting me use it for MR/LR. Mostly 105Berger 29.8gr H4895 and a CCC 450 with Lapua brass.
Now that I have it am loading Varget and a SMK 107. .272 neck
I worked up 28.5/29.0/29.5/29.8/30.1 and 30.4 Varget loads touching jam.
Velocity was shy of 2800. H4895 had been more 2850-2890 fps with 105 Berger.
The prior owner had load notes using his varget at 30.1 and getting about about 2850-2890, but MY Varget needs 31.0 to get to get the 107 SMK to 2850. -.020 jump is the load I plan to use in a couple weeks for a MR match.

I have less experience with Varget so I guess lot to lot it is not the best consistency.

Check humidity

 

[Jason D Hostetter]

Anyone experiment with Ramshot Biggame or Staball 6.5, in 6br or bra? I have limited testing with Staball 6.5 in a 6br. I'm not one to use the common powders, occasionally I'll shoot H4895 in the 2930ish range. I've done a pressure ladder with Staball 6.5 up to 37grns, 31" 7.5 twist btw, but I haven't shot for groups or topped out on pressure yet. At 37grns, a 109 berger, and a CCI 450, had me at 3073fps with no pressure on a fresh barrel. My typical load is 34.1-34.3grns of PP2000MR, my last barrel, a 30" 8 twist, landed on 34.1 with 105 hybrids at 3068fps ES of 2 SD of 0 for 5 shots at about .175" at 100yrds. I'm curious about others experience with Staball 6.5, Ramshot Biggame, and even CFE223. I have plenty of H4895 and some Varget, also 8208xbr, but I like to use the odd powders and chase velocity and accuracy. I shoot between 30 and 85 ish degrees, so I don't really care about powder stability, as long as it stays in a node, I'm not too lazy to track the velocity loss or gain.