Originally Posted by Lefty7mmstw
Oh, the joy of ressurecting dead threads.
Since it's alive I'll toss my .02 in.
The wssm cals. are notorious for not liking max loads. I shoot a 100 sierra with a start charge of H4895 and it's still around 3100 fps at 1/2 moa. With a top charge of Superformance it'll hit 3300 fps with the sierra at 1 moa. A start charge of h4350 with the 120 speer is its best load at about 1/3 moa at 2900 fps.
Hmmmm. Not my experience at all.
I have 2: 25 wssm's so I can't speak for the 22 or 243 wssm.
Both of mine demand max loads or they will soot up the necks of the brass something awful.
Both the Winchester and Browning are accurate with many loads but only loads near max will seal up the
thick neck brass to the chamber.
How does your brass look with these light loads?