Sorry for the slow reply. Yes, I started by working up to max but didn't finish my test because I wasn't happy with velocity. H4350. 2700 fps vs. H414 3250 fps. I went back to H414 and I'm pretty happy with it. I thought it was pretty consistent.....ES 55 fps over 14 shots and 3 different charge weights .4 gr difference. Maybe after my h414 runs out I might try varget or imr 4064. Sounds like those are pretty popular with the .243.
My barrel length is 22" ...my manual says 3404 fps but mine are a little slower....
Anyway thanks for the info and advice! I think I'll shoot h414 for awhile till I get itching to try something different
