So I am the guy with the 220 swift that Seven_miller was talking about. We shot a lot last summer. He was a touch off on the numbers though. I got up to 44.5 grains of reloader 26 behind 75 grain amaxes in the 220 swift, and was getting 3550 fps per a chrono. This load shot really well, under .25 inch 5 shot groups at 100 yards. And hits on steel at 1200 yards happened pretty often.
As far as pressure, I believe 44.5 was about as much as I could get into the case without a lot of crunch, and after 4 firings through hornady brass, I never had loose primer pockets, but did have to anneal necks. No excessive bolt lift issues or flashes on the headstamp.
I ended up backing off to 41 grains for about 3350 fps towards the end of the barrel life.
Overall, Reloader 26 was a fantastic fit with the 220 swift. Be cautious with working up, and do your research.
Hope this helped
