Quote Originally Posted by bigedp51 View Post
If you switch to 158 grain .357 pistol bullets you could use Trail Boss and have a light plinking load.

I shoot 100 grain .312 pistol bullets with Trail Boss in my .303 British Enfield rifles to fire form cases. When shooting 100 rounds it makes the brass butt plate much softer.
Very true. I fired a ton of commercial hard cast semiwadcutters from my Marlin .35 Remington, back in the day when it was my only rifle.

About 20 grains of Blue Dot with a hard cast gas checked SWC for 1800 - 1900 fps. in your .358 Win.

About 8 or 9 grains of Red Dot / Green Dot / Bullseye / Unique with a plain base for 1400 fps or so. Trail Boss would work at about ten grains.

(I'm pulling those out of Quickload.)

Cheap shooting, and in my Marlin some loads were 2 MOA accurate.