I would appreciate any load information you have for the 300 RUM using the 220 SMK and the 240 SMK bullets. I have Retumbo, H-1000, and Reloader 25 powder that I can use with the Nosler brass and Federal 215 primers.
Thanks in advance for your help.
86.5gr of Retumbo with a 240gr Matchking was giving me around 2900fps in a 26" bbl i believe, its been a while, i will double check and bet back to you. I know it was not a high pressure load
Nosler brass
Federal GM215M
220 smk 87.5 grains retumbo 3.655" 3075fps
240 smk 92.0 grains H50BMG 3.658" 2913fps ES 2
Both seated to kissing the lands
28" pacnor on a trued rem 700
These bullets shoot bug holes but the 220 smk gives me vertical at longer ranges. Also the nosler brass is ten grains heavier than my sorted rem brass.
The pic is my first 1000 yard group I ever shot 6.5". It's with the 220 SMK. The top three masked taped holes are from 750 yards 4.4".
I FINALLY got the dang search function to bring up something I was looking for. I just bought a box of 240's to try in my 700 LR .300 RUM. I see others shot them in 1:10.