Dudedog
Contributing Member
I loaded 40 rounds of RMR 124 gr FMJ loaded to 1.12” col and 4.2 and 4.4 Win 241. It function good on my 2 gun but Springfield 1911 have a good group, I think I like it.
I also load 20 rounds of RMR 115 gr FMJ to 1.115 COL with 4.4 win 231
W231 for both? (There is a W244 no 241 guessing 231 w/typo)
I don't shoot a lot of 115s (my guns prefer 124/125s)
I think the 115 load might shoot better with a bit more powder
Hodgdon data
115 GR. SPR GDHP Winchester 231 .355" 1.125" 4.7 1075 25,300 CUP 5.1 1167 28,100 CUP
Lyman list Start 3.5 MAX 4.9 with a different 124 JHP
I would load some of the 115s at 4.6 and 4.8 and see if that load works better for you.
Both 4.2 and 4.4gr look pretty good with the 124s..
As far as the different pistols in 9mm I have a Taurus PT99, Sig P226, XD Sub-compact, XD compact, and two Springfield 9mm 1911s.
They very seldom agree on what they like best, however I have found that a load that shoots well in one tends to shoot well in the others
If you are testing for accuracy using a rest helps because it takes part of you the shooter out of the equation.