How much free bore

[homefrontsniper]

.199 freebore is the SAAMI spec chamber so you aren't overly long. Both my custom Creedmoors have that chamber. Loading the 140 ELD-M at .020" off the lands I am at 2.850" OAL and it works great in AICS mags. I wouldn't go to .100 freebore. Too tight and you will have to push that bullet too deep in the case. Go with a .169" if you want shorter as that will put them at 2,820" at about .020" off the lands but I would try to shoot what you have now first.

Haven't put barrel on yet. Still shooting M12 LRP
Just getting as much information ad I can before I switch barrels.

Rob01 hows come you're not shooting 147 eldm?
Could they be just a little heavy for the creedmoor?

Thanks

[Rob01]

Haven't put barrel on yet. Still shooting M12 LRP
Just getting as much information ad I can before I switch barrels.

Rob01 hows come you're not shooting 147 eldm?
Could they be just a little heavy for the creedmoor?

Thanks

Funny you mention the 147s. Not too heavy at all for the Creedmoor. I was just out on Friday testing them from 600-1020 yards. They shot great and I had no problem keeping them all on a 10" plate at 1020 yards. I am getting them going 2820fps with H4350 in my 27" barrel. I load them .030" off the lands and they re 2.860" OAL.

[homefrontsniper]

Funny you mention the 147s. Not too heavy at all for the Creedmoor. I was just out on Friday testing them from 600-1020 yards. They shot great and I had no problem keeping them all on a 10" plate at 1020 yards. I am getting them going 2820fps with H4350 in my 27" barrel. I load them .030" off the lands and they re 2.860" OAL.

Thanks...i am ordering 147 tomorrow!
Maybe I will leave chamber @ .200"