ar-15 dpms 24 inch bull barel

[beagle24]

i hand load using varget and 55 grn v max shoots half inch groups at 200 what is the heaviest grain i can go for 1 9 twist and how far can i shoot

 

[montana_native]

i hand load using varget and 55 grn v max shoots half inch groups at 200 what is the heaviest grain i can go for 1 9 twist

I'm shooting 77 gr SMK's out of the same gun with H4895. Magazine length, 2.260"

 

[beagle24]

I'm shooting 77 gr SMK's out of the same gun with H4895. Magazine length, 2.260"

thanks but is your 2.260 your c.o.l