bobm
Silver $$ Contributor
www.theballisticassistant.com
It sure looks like its about a 1:3. I'll bet you are right.An interesting article about the potential host it may have been fired in…
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An Honest Look at 8.6 Blackout | The Ballistic Assistant
www.theballisticassistant.com
Shouldn't be hard to estimate/ballpark. Looks like it's doing about ¼ revolution in the length of the engraved section so if you multiply the length of the engraved section (parallel to centerline) x 4, that should be the rate.What twist rate would that be?
