Anyone off hand know what the rate of twist is on a 72 73 B serial ran.ge 99a 243 ........Guy is shooting 100 gr and at 50 yrds the bullets are sideways hitting the paper .....
He used a cleaning stick method with tight patch and says he's measuring 1 in 8 ..... any help would be appreciated
Last edited by kdog; 09/05/16.
