2 years ago i tinkered with 350 legend, in a bear creek arsenal ar upper 16". I loaded some .357 125 gr rem sjhp - but for some reason i never completed my notes on how it shot. i believe i stopped loading with lighter than 158gr because the accuracy wasnt there, im sure in the future i will retest.
i had a note on some 146gr HP that didnt like feeding from magazine
I can be cheap sometimes and tried reloading 350 legend with 38/357 and 223 dies - dont, its a pain in the butt - get 350 legend dies, i use lee.
so heres the range notes from other loads -
starline brass, 26.0gr H110, fed 200 primers - all .357 bullets - shot 10 rounds of each load
158 gr seirra sP (8340) - 3" group @ 100yds
158 gr win JHP - 2" group @ 100yd
160 FMJ - 3" group @ 100 yd
i didnt have a chrono so i dont know about the actual velocity, but brass and primer inspection after shooting showed no ill signs of abuse
i will chrono loads next time. I bought an axis in 350 legends so i can load some heavy subsonic 250-280 gr cast stuff in the future.