OlympicViking
Member
- Joined
- May 23, 2017
- Messages
- 20
Just used the Hornady tool for determining bullet seating depth. With a 120 gr Barnes TTSX I repeatedly got 2.910" in my Ruger 77 Hawkeye in 7mm-08. SAAMI COAL is 2.800". I made a dummy round 2.910" long that chambers without resistance but is too long for the magazine.
My RCBS precision mic has a 2.850" dummy round as being exactly .050" off the lands, but it should be noted that the freebore measurement with the mic is based on their freebore tool rather than the actual bullet I will use. I figure the two are close but not exact.
I planned to seat the Barnes bullets about .060" off the lands, but that still puts me above book max COAL. At 2.850" the dummy round chambers & fits in the mag. What would you guys do?
My RCBS precision mic has a 2.850" dummy round as being exactly .050" off the lands, but it should be noted that the freebore measurement with the mic is based on their freebore tool rather than the actual bullet I will use. I figure the two are close but not exact.
I planned to seat the Barnes bullets about .060" off the lands, but that still puts me above book max COAL. At 2.850" the dummy round chambers & fits in the mag. What would you guys do?