108 ELD-M Twist rate

[jrbet83]

What's the recommended twist rate for this bullet, especially in a gas gun with factory ammo?

 

[spife7980]

1:8 min but a 7.5 would be safer for thick air and low velocities

http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi I found a length of 1.273 for the 108 eldm on a forum but no work on the tip length vs overall. Running an 8 twist @ 2800fps and standard conditions is stable, 1:9 becomes marginal.