Re: Reloader 22 in .270 help. RL17?
I have used R22 in only one cartridge (300Winmag) with miserable results, but that doesn't mean anything. From what the Nosler manual states, R22 gave the best accuracy at the lower pressure of the loads they list. From my own experience with the 270Win I have found H1000 powder gives excellent accuracy and higher velocities using 140 grain bullets and am sure it would work with 150 grain bullets also. The probable reason you are seeing higher velicity than those listed in your data manual is due to the 26" barrel your Sendero sports compared to most 270's of 22"or 24", but I don't know this as fact. Usually the manual will state the barrel length of their test barrel. Every rifle/barrel is a law unto itself when determining max loads and velocity as the data manuals are a very good guide. I have loaded for rifles that were at the top-end of safe pressure at near starting loads and others that were loaded slightly above the listed max loads, though I never assume anything just because it is listed on paper.