6x45 1/8 will work for up to 100 gr. Bullet you will have not to make a lot or rifle changes as bolt face magazine. Brass is really easy to come by they shoot real good. I use one on the AR platform. Years back the service rifle competition saw lots for people covering their black guns to 6x45 but were fining it hard to keep up with the 7.62 mm aka .308 Win across the crourse at Camp Perry Ohio beyond 300 yards. But with today’s new rifling and powder and bullets we are now able to make theses shots happen.
You will be very happy with the 6x45 I want one for my Striker pistol.
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