I just started shooting my 6.5 CM barrel for my DTA and started working up a load using both 139 scenars and the 140 Hybrids.
I loaded up the Hybrids 10 thou off the lands and didn't realize until I got out to the range that they wouldn't feed into my DTA 308 mag. I was surprised since DTA mags are pretty long. The 139s cleared it no problem.
I had to set the bullet back another 15 thou to get it to clear reliably. So I'm jumping 25 thou now.
The 139s were giving me 2850 with 42.6 grains of 4350 and I was getting groups around or even under .25 MOA.....best shooting barrel I've ever had for this gun. So I'm tempted just to throw the 10 boxes of 140's on the shelf and stick with the 139s.
Or do the Hybrids offer any advantage in terms of BC.
The only reason I ask instead of just trying it out is because my range time is so limited with work.....I hate wasting most of my day on load development. Especially since the 139s are working so well.
Opinions?
I loaded up the Hybrids 10 thou off the lands and didn't realize until I got out to the range that they wouldn't feed into my DTA 308 mag. I was surprised since DTA mags are pretty long. The 139s cleared it no problem.
I had to set the bullet back another 15 thou to get it to clear reliably. So I'm jumping 25 thou now.
The 139s were giving me 2850 with 42.6 grains of 4350 and I was getting groups around or even under .25 MOA.....best shooting barrel I've ever had for this gun. So I'm tempted just to throw the 10 boxes of 140's on the shelf and stick with the 139s.
Or do the Hybrids offer any advantage in terms of BC.
The only reason I ask instead of just trying it out is because my range time is so limited with work.....I hate wasting most of my day on load development. Especially since the 139s are working so well.
Opinions?
Last edited: