Idaho,
Do you plan to update the Sherman load data spreadsheet? Doesn't seem to have much of the new data in it?
Thanks. I know it's a pain. I'm the one updating all the Hammer data🤔
5/8x24 is pretty standard and works well. Got brakes on 12-14 rifles. Never experienced or heard of "wallowing" out? All work well.
My only suggestion is get side venting if you shoot prone/bipod. I prefer radial venting/self timing, but I don't shoot on the ground.
I've been using chargemasters for a bit over 10years. No issues. Keep the powder hopper wiped off with a cling free sheet. Also keep phone or magnetic stuff away.
I can't shoot the difference if they're not accurate enough. SD in single digits often.
There was a lengthy review written on Accurate Shooter about the top 30 or so brakes used by the top PRS shooters last year. The article gave some good info. I found it very informative.