Sierra 90 grain HPBT match king reloading data

M&M

FNG
Joined
Jun 19, 2022
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1
Anyone have reloading data for Sierra, .224 diameter, 90 grain HPBT bullets? I know Sierra says they should only be used in 6.5 inch twist barrels. I have 500 of them and would like to shoot them if possible. I’ve been reloading for almost 50 years and know how to develope loads I just need a starting point. Plus, I only have 7 “ twist barrels but thought I might try them anyways. Any help would be appreciated!

I guess I could have included the rifle caliber too!! Either 22-250 or 223 would work.
 
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