Is there a way to tell the twist rate without literally measuring, ie is it marked anywhere on the barrel ? Given the fact ARs come in several twist rates from 7 to 9. I was sent a box of 64g bullets instead of the 50g which I ordered. I know my fast twist bolt guns wont shoot them.
Given the unknown, my other choice is to load up a few and try them. They do show that bullet weight in the loading manuals, so I can't be too far off.
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AR-15 question for the forum
- jthomson, 2018-04-08, 11:30
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- Factory can tell you (nm) - Brian T, 2018-04-08, 14:06
- normally the barrel will be marked with just a 7 or 9 or - Gary Reeder, 2018-04-08, 14:02
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Use cleaning rod with dry patch to measure twist.....
- Jeff Spencer, 2018-04-08, 12:09
- Thanks guys, I went ahead and loaded - jthomson, 2018-04-08, 18:02