Home Forums Reloading Big Game Rifles Favorite Powder .257R and 120gr Speer GS

Speer data.

https://reloading-data.speer-ammo.c...25_caliber_257_dia/257_Roberts_P_120.pdf

They don't address accuracy, but do address speed.

DF


Edited to confess, ya gotta be a real hard core Loony to have every powder on that Speer chart...