6mmAR Turbo 40 Varmint Load Help

[squirrelsnpr]

Recently picked up an upper by ARX in their Turbo 40. Im primarily bought it to shoot ground squirrels and coyotes. After fireforming I worked up a load using 80 grain Nosler ballistic tips, 30.2 grains of XBR over BR4s. This was the max load before seeing pressure signs at 30.4 grains.

I was able to consistently get 3120 FPS over the CED chronograph. However I saw on the ARX website that the standard 6mmAR with a 75 grain V-Max was clocked at 3150 FPS with Benchmark. I was wondering if you all think Benchmark will help me get more FPS without showing premature pressure signs? I originally hoped to get about 3250 FPS with the 70 - 80 grain class of 6mm bullets with the improved version.

I should add that I'm sticking with single based powders to keep from velocity swings due to tempature.

 

[Bigame1]

I sent a PM.

 

[rcw3]

I don't think the ground squirrels or coyotes will know the difference one way or the other. IMO - go with the most accurate loading.

 

[6brxdude]

Try some CFE 223 powder and some 450 primers. I'm shooting a 6mm Fat Rat out of a 20" barrel with the 70 grn Noslers for coyotes. 3385 fps with 30.5 grains and extremely consistent spreads............



Kevin

 

[Klong]

try the Benchmark with 70 gr BT and CCI 450 or BR4.

 

[BigDMT]

I don't think the ground squirrels or coyotes will know the difference one way or the other. IMO - go with the most accurate loading.

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