New 10" barrel, bullet stability problems

[TCCrewchief76]

Originally Posted by Hoser

Im thinking it isnt an 8 twist or maybe something along those lines...

Do you know anyone with a borescope? Might be a good idea to take a look in there and check things out.

I was just gonna recommend that. Take a cleaning rod with a line marked down the center line. Mark the rod just as it starts to turn, and when the centerline rotates back to the top again, remark. Measure the distance between the marks, and this is your twist rate.

Kevin