can i get a mike rock polly rifled ( i think thats called cut rifling ) barrel blank and get it machined to fit in my hk msg90 a2 ? and when you buy a barrel blank what needs to be done out side of haveing it finnish chambered ?
i want the barrel to be 26" long and threaded for an hk muzzle brake, so how long does the blank need to be ?
and what is a good twist rate for 155 and 175 smk's
oh and one last think what countour should i have it cut to ?
it has to press inside an hk trunnion, then i was going to have my gunsmith turn it to hk msg90 profile so iam guessing 1" and then he can turn it down to fit the trunion and the barrel contour him self and finnish chamber and flute the chamber
i want the barrel to be 26" long and threaded for an hk muzzle brake, so how long does the blank need to be ?
and what is a good twist rate for 155 and 175 smk's
oh and one last think what countour should i have it cut to ?
it has to press inside an hk trunnion, then i was going to have my gunsmith turn it to hk msg90 profile so iam guessing 1" and then he can turn it down to fit the trunion and the barrel contour him self and finnish chamber and flute the chamber
