11-04-2021, 12:53 PM
Looking at these pdf's (thanks RT!) the 108 and Varget, max load is 26.7 at AOL of 2.260 and a Fed 205 primer, not 27.2. btw I don't recall which primer you are using... any of these components can cause a difference (even powder lot differences), plus the original comment, that QL is more of a guide than a definitive, all put the loads in the ballpark but working up is still a necessity.
One more thing, typically a barrel needs ~100 rounds to break in, by that I mean that MV's tend to gain ~50 fps after about 100 rounds, probably due to hot gasses shaping the throat area.
So several variables are still in play for you.
Start low, work up, be observant.
One more thing, typically a barrel needs ~100 rounds to break in, by that I mean that MV's tend to gain ~50 fps after about 100 rounds, probably due to hot gasses shaping the throat area.
So several variables are still in play for you.
Start low, work up, be observant.