Gunsmithing Creedmoor chamber from a 6.5x47 reamer?

[GasLight]

Question is if I can get a Creedmoor chamber by simply deep running the Lapua reamer into the barrel? I can't find the dimensional specs on either cartridge, but they appear to be very close...

Any help is greatly appreciated!

Dave

 

[264shooter]

Re: Creedmoor chamber from a 6.5x47 reamer?

I have been doing some homework on that and it appears that it will work. If you have Quick Load you can compare the drawings.

 

[GasLight]

Re: Creedmoor chamber from a 6.5x47 reamer?

I don't have Quickload, perhaps someone who does can weigh in

 

[HotIce]

Re: Creedmoor chamber from a 6.5x47 reamer?

 

[GasLight]

Re: Creedmoor chamber from a 6.5x47 reamer?

Looks like the creedmoor has a shorter neck, and a slightly shorter shoulder. .04" shorter neck and .005" shorter shoulder, should work fine, and the brass stretch would gradually increase the neck length, so you could increase your trim-to length accordingly and be fine. Would chamber and fire factory ammo just fine I am thinking. Looks like I may give it a go.

Thanks for the drawings!

Dave

 

[GasLight]

Re: Creedmoor chamber from a 6.5x47 reamer?

Hmmm, wonder if the thickness at the shoulder would cause a problem...

would hate to get that far and find out it was a no-chamber situation. Anyone know if .006" diameter or .003" per side will effect chambering of factory loads?