Sierra 88 TMK Load Data

I have some loaded but haven’t shot yet.

My LC brass is 32.5+gr h2o.

77’s shot great at 24gr loaded 2.375” (.125” off lands).

You’ll be fine starting at 22gr if you’re over 2.4”
 
Lapua or bust, they’re hard on brass as is, with heavies I tend to end up higher on pressure and cheaper brass doesn’t last
I’ve since sold both of those 22-250 barrels I had, but lapua was what I Initially bought.

I got them flying well out to 500 yards so far, uploaded a video in post #354 that’s with my standard 8twist tikka 223
 
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