I have a Winchester M70 featherweight in 22-250 that is microbedded. I've been reloading and getting terrible results (5 inch groups at 70 yards) using some popular recipes. So far I've used various combinations of H380 and Varget powders,CCI LR primers or CCI magnum primers, Winchester brass, and Hornady 55 gr FMJ bullets. I have followed all specifications such as trimming to lenghth, seating bullet depth, and I have measured the powder for each reload to ensure consistency.
I then bought factory loads that were Remington Core-lokt 55gr. soft points and was able to get 0.5 inch groups at 70 yards. The differences between my reloads and factory loads are primers, powder, brass brand, and bullet type (although both are 55 grain).
Does anybody have any advise as to what I may be doing wrong or why I am having so much trouble with some standard reloads?