Beating a dead horse? 6br question

[jackieschmidt]

The big difference in all of the various 6BR cases is Lapua deliberately made their “6BR Norma Lapua“ larger at the web than the original Remington 6BR and the 6BR Norma.
I have been around long enough to remember when Sinclair put out a bulletin stating that the new Lapua offering in 6BR would not chamber in rifles that had the original Remington chamber. Reamer manufactures caught on and started making the reamers for Lapua cases to accommodate this.

Norma had standardized the length at 1.560 as opposed to the original Remington at 1.510. As a concession to Norma, when Lapua started making the case, they put Norma’s name on the head stamp along with the name Lapua, and then turned around and made the web larger. Why they did this was always a mystery. But a lot of shooters who were shooting trimmed back Norma cases in their Remington chambers soon found out the Lapua case was too tight and would not chamber.

As far as I know, this still holds true. If you measure a Lupua case, it will measure between .469 and .470. A Norma and Remington case will often measure as much as .003 smaller. They will of course expand into the Lapua chamber If fired.

As far as I know, all reamers are now ground to accommodate the Lapua case.

I was one of the first to get one of the new reamers dimensioned for the Lapua case, and took quite a few barrels chambered for the Remington and Norma, and ran the reamer in so they could shoot Lapua Brass.

 

[searcher]

That's a good way of putting it

I think the difference is not that great. Back before Norma chamber dies were not readily available on the scene, I bought 6 BR Remington dies for my 6 BR Norma chamber and used those dies for several years. It may be the neck is longer on the Norma - can't recall - but that is easy to determine. I think if one were to remove the firing pin spring, lightly chamber a round which had the bullet dye-marked - and feel for any resistance when closing the bolt and bullet dye mars on the bullet. If neither exist - you should be good to go on fireforming that first batch of factory ammo, being sure to check trim length again after that first firing. I'd shoot that ammo. Collectors for ammo seem to be as slim as the availability of the collected ammo.

 

[FNSafari]

Hello everyone and I'm sorry if this is beating a dead horse. I have read and reread post after post and looked at chamber drawings till I am blue in the face. But nothing is giving me the straight answer.
I am wanting to build a 6br on a Remington 700 in a old BDL stock. Make it a short suppressed varmint rifle. I have the opportunity to buy over 200 factory Remington 6br shells and I want someone to tell me, will a 6br norma chamber except these factory loaded rounds? I like the thought of shooting the factory shells but I know I will also buy brass, probably alpha down the road. Also will not want to turn necks.I don't plan on using the long vld 105's, I have a dasher for that. I ordered a 1:10 shilen barrel and plan on shooting the 68 to 90 gr pills.
Measuring the factory loaded rounds( I bought one box for the ammo collection) oal of the brass is averaging 1.557

I appreciate any input.
Thanks, Keith

do yourself a favor and buy Lapua brass.

 

[Knorthcutt222]

do yourself a favor and buy Laupa brass.

I will more than likely buy Lapua or alpha

 

[jackieschmidt]

I will more than likely buy Lapua or alpha

I don’t mean to sound prejudiced but any time I decide to build a rifle, the single biggest consideration is….”Does Lapua make brass for it”?