109 Hybrid, Juice not worth the squeeze?

[BCP1980]

If You don’t mind, what was the successful seating depth on the 105’s & 109’s.

I have had my best results at .016 off in 2 different rifles.

 

[Bob3700]

Jeff,
I have experimented with 105 Hybrids and 110 SMKs in my BRX. The 110’s are ballistically impressive bullets. For consistently good performance they may need a faster twist ( at our elevation) than 7.5. I get an occasional flier that is off call.
All that said, I think it is really hard to beat 107 SMK’s that are sorted n pointed. Small, round groups at distance are what I find to produce the best scores.
The attached targets are prone/ sling/ scoped @ 600 on our Shotmarker. My velocities on target average 2010 fps. Am working on better iron sight scores but the gun n bullet are there.
I think we are the weak link in the system n the small difference in bullet performance is lost in the chatter.
Bob
A

 

[swd]

At a 200 yard group/score benchrest match last weekend that they let us shoot our F Open rifles I shot small group for the day with my BRX and 109’s against mostly 30BR’s and PPC’s. It doesn’t agg as small but it still does pretty well.