Ackleyman,I shot the barrel out of two, shooting 60g right at 3900 fps and 70g at 3550 using H335, 23.5" used benchrest barrels. 55g will get you in the 4050 fps area. Dog town shooting was hot and heavy. You will not regret using H335 in a slow twist with those bullet weights, long shot strings in between cleanings. I shot a lot of very, very tiny groups with the 60's. Mine was a zero freebore reamer.
Todd, I have my own, and the zero freebore reamer works incredible for 55g nosler/blitz king-75g v max...unreal barrel life. I shoot H335 and aa2230, thick cup primerAckleyman,
Did you rent a reamer or did you have your own? I couldn't find a zero freebore Dasher reamer anywhere. Settled on a .104/272.
Thanks,
Tod