Curious if anyone has any speed info for a 10.5 barrel in 5.56 with 90 grain match kings? I found a 10.5 barrel with a 5 twist, and thought about building another pistol. Not sure what use it would be good for though, but I have been trying to build something new with all the parts I have. Parts have been so cheap Im at the point of trying the ridiculous I guess. I reload so it might be worth it to just learn. I know the 224 Valkyrie was having issues with the 90 plus grain wights with the 7 twist. So I figure a 5 twist would work good. It might could be a hard hitting pdw also with the heavy pills. I dont have a Valkyrie, so I dont the heaviest pills they make for .224.
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