6.5x47 Lapua Reamer Specs

Hondo64d

Well-Known Member
Joined
May 27, 2003
Messages
501
Location
The Big Country
I queried on a couple of sites asking for suggestions for freebore length in order to reach the lands with a 130gr Hunting VLD seated shuch that the angle on the botail is even with the neck/shoulder junction. With numbers suggested being all over the map, I decided on a .100 freebore. Even if the heel is a little above the neck/shoulder junction, it should still let me chase the lands a little bit and work in a 2.8" Remington box.

I think I screwed up on the neck diameter though. I let the guy at JGS talk me into their standard neck diameter. They assured me their print was to CIP specs and would not require neck turning. Their neck specs are .293 tapering to .292. Well, my dummy rounds with virgin Lapua brass are measuring .2909. I'm afraid that's too tight. What are your thoughts?



John
 

AZShooter

Well-Known Member
Joined
Dec 12, 2005
Messages
2,557
Location
Tucson Az
Too tight for unturned necks. All it would take is to have one case with a neck wall thickness that is more than average and you would have higher pressure with all associated with it.

Isn't there time to alter the reamer? Give them a call before they get it made. Otherwise IMO you will be turning necks.
 

J E Custom

Well-Known Member
Joined
Jul 29, 2004
Messages
10,310
Location
Texas
The neck chamber need to be .004 larger than a loaded case.

The .100 thousandths free bore will work good for you. and you might find better accuracy if you back off the lands more.

J E CUSTOM
 

Hondo64d

Well-Known Member
Joined
May 27, 2003
Messages
501
Location
The Big Country
The folks at JGS are going to allow me to return the reamer to be replaced with one that has a .294 neck. I am VERY impressed with their customer service.



John
 

Trending threads

Nightforce has great tracking capabilities, they are rugged, a bunch of elevation, holds zero forever, and reticles are designed for long range shooting. So if you are looking to shoot long distances constantly, then you need a scope that can take the abuse. -- gilmillan1


Culture Of Excellence At Nightforce Optics
By Len Backus

A high level of quality both in production and in service. Read More


Nightforce is such a solid combo of reticle, available elevation, glass that is good enough to shoot at the longest range you can dial. Nightforce has bullet proof construction that can handle the incidental horse rolling or some other rodeo action. -- bigngreen


Nightforce ATACR Scope Review
By Jeff Brozovich

The new NightForce ATACR is for sure a top choice for any long range shooter. Read More


The total package. Nightforce is the best I have used as far as turret feel and solid detents. I have never had one that didn't track right on and always return to zero. Nightforce NXS is the best value for everything I need. -- Broz


Nightforce Velocity 1000 Reticle Review
By Scott Shreve

I think Nightforce knocked it outta the park with this reticle! Read More

NightForce


Top