My Ruger#1 RSI (single shot riflewith full Mannlicher-style stock) in 7x57 really "likes" H4350 at ANY load-level. It is very accurate loaded behind a 140 grain Sierra ProHunter, flat-based bullet in Remington cases sparked by standard Winchester primers.

My "accuracy load" is the above components using 47.2 grains of H4350 which has yielded 3-shot groups as small as .176 inches. However, even a maximum load consisting of 50.0 grains of H4350 shoots .404 inch, 3-shot groups, but recoil and sound level were both considerably higher than with only slightly lighter loads.

Try H4350... I believe you'll like what it does for your rifle. smile


Strength & Honor...

Ron T.

It's smart to hang around old guys 'cause they know lotsa stuff...