Best Powder for 6BR 68 Grain Target Accuracy?

[RonAKA]

Anyone loading IMR8208XBR with the 65-68g bullets in 6br. From Hodgdon data, it is the fastest powder listed and should work good for precision due to being a BR powder.

I followed the thread below, and decided the results were somewhat mixed in 6BR. Perhaps better for .308?

http://www.accurateshooter.com/forum/index.php/topic,3757359.0.html

 

[North Fork]

I vote for vv135 works great for me.

 

[RonAKA]

I make it:

N135 - 6
N133 - 3
Benchmark - 2
H4895, RL-10, H322, X-Terminator, AA 2230 - 1 each

You've talked me into trying N135 when the weather warms up. Seems to be just slightly faster than Varget. Probably will stick to Varget for the cold temps (plus I have a bunch to use up!).

 

[PopCharlie]

Re: Best Powder for 6BR 68 Grain Top Target Accuracy?

32.5 gr. N135 Euber 68 gr. Match
Right at 3400 fps. My rifle is a Cooper M22 MTV with a 26" 14 twist barrel. I get the same accuracy for a little less money with 65 gr. Vmax.

I have the same rifle. I shoot the same load but with 68 gr Barts bullets. It also likes the Berger column bullets with 27.5 gr of LT-32. IMR-8208 xbr works well too. Still shoots into 3/8" @ 100 yards after 15 years and 2000 rounds.

 

[PopCharlie]

Anyone loading IMR8208XBR with the 65-68g bullets in 6br. From Hodgdon data, it is the fastest powder listed and should work good for precision due to being a BR powder.

Anyone??

I shoot 66 gr. Barts under 30 gr of 8208 xbr.
64 gr. Berger column under 30.5 gr. 8208 xbr
68 gr. Barts under 30 gr. 8208 xbr
Cooper model 22 Varminter, 26 in barrel 1-14 twist. Bullets seated to touch.
Br4 primers. Lapua case. Sized with Whidden non-bushing F/L sizer and .243 expander ball.

 

[Adam 6mm build]

N 133 31grns 68grn berger and don't look back

 

[Webster]

So far I've only tested two powders H322 and Varget. I like the Hodgdon Extreme powders for their insensitivity to temperature in the chamber. Varget has fairly consistently out shot the H322. I think the reason is probably that Varget is slower and can get the 68 grain quite easily to the 3400-3450 or so velocity that seems to shoot best in my gun. H322 comes up a little short at 3300 or so. Also, Varget fills the case into the neck, so right full but not compressed.

Do you think there is better than Varget and why? I was considering VV N135 or N140. They seem to be a touch faster and slower respectively than Varget. I also wonder if there is a down side to whatever process Hodgdon (ADI) must be using to achieve the temperature insensitivity?

Any comments or advice you can provide are much appreciated,

I avoid Vit and Norma powders because of the higher price. I tried at least 5 powdes in my 14 twist 66BR and have settled on 8208 for all my loads. Always available, very accurate and better fps than anything else I tried. Easily get 3600 fps with 58 and 60 gr bullets.

 

[Gander P]

Anyone loading IMR8208XBR with the 65-68g bullets in 6br. From Hodgdon data, it is the fastest powder listed and should work good for precision due to being a BR powder.

Anyone??

I shoot tiny one hole groups with 68 gr. Avengers and 8208xbr. 31.5gr. to 32.2grs should be a sweet spot.

 

[JimPag]

8208 and N135

 

[madmixerman]

I bet he figured it out , 11 year old post .