6BR question?

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pyscodog

Active member
Whats the diff. between a 6BR Rem. and a 6BR Norma? I have a 6 BR Rem, and SHarp Shooter offers one in Norma and I saw one at a gun show but can't seem to find info on the difference.

Pyscodog /ubbthreads/images/graemlins/confused1.gif
 
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Whats the diff. between a 6BR Rem. and a 6BR Norma? I have a 6 BR Rem, and Sharp Shooter offers one in Norma and I saw one at a gun show but can't seem to find info on the difference. Pyscodog /ubbthreads/images/graemlins/confused1.gif



I know a little about the 6mmBR. It was introduced to compete with the 6mmPPC

Rem cam out with it way back when, and offered 40-XBBR bench rest rifles with a tight neck chamber (~0.262"). The rifles were very good (@$3,500 /ubbthreads/images/graemlins/frown.gif ) but not competitive with the $5k custom rifles that were competing in PB BR.

They didn't offer cases at first - you had to make the cases from the 308 small primer "basic cylindrical", which was a MONSTER BIG PITA.

The reason was... that Rem had just been through a bunch of law suits over trigger issues and were nervous about selling tight neck brass to beginners that might do a felony stupid.

Then (since sales were poor) they offered cases in the form of loaded ammo with a 0.273 neck dia.

The idea was that you bought the loaded ammo, and then pulled the bullets and turned the necks (and cut them back)... and you were good to go.

Not a good idea - It was because of this decision that I got a brand new (in the box) $3,500 40-XBBR for $500.

Enter Norma and Lapua.

The 6mmBR was not doing well in PB benchrest (Point Blank Bench Rest) in the 100 and 200 yd matches. But the case was a better design than the PPC! So Norma entered the scene, and then Lapua, with GREAT brass.

They spec'ed their chambers with in a few thou of the original Rem 6mmBR, but they used a full diameter neck, and did NOT shorten the neck.

With the introduction of the new brass (especially the Lapua), the 6mmBR took off like a rocket, and it is an outstanding 1,000 yard cartridge, both on paper and varmint critters.

At this stage in the game, most rifles will say what neck diameter they have - it'll be marked right after the caliber... like, - 6mmBR 0.273" - meaning that the loaded ammo must have a neck diameter of 0.272" or smaller.

The loaded neck of the Lapua case with a .243 bullet is ~0.270"/0.271", so these chambers are called "No turn chambers", because you can use the brass right out of the box.

THAT IS WHAT YOU WANT!!!!

My 6mmBR has a 0.262" neck and I had to neck turn 1,100 Lapua cases for it, and that really sucked.

I hope that throws some light on it - PM me if you have any questions. The link above has good info on it.

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Let me rephrase this. Is the 6BR Rem. the same as the 6BR Norma?



Yeah (kinda sorta) /ubbthreads/images/graemlins/smile.gif

Same case, but there are about 30 different reamers for different necks.

The most common is the "6mmBR no turn neck" and that covers the Lapua and Norma case.

If you have a chance to get a 6mBR Norma - get it.
 
The 6Br came out two years after the 22Br 1976 so it's been around for 31yrs now. When the old Sako 220 Russian case supply dried up for the 6ppc was alot of interest in the 6Br that was in the 80's about that time Rem started building the 40x in both caliber 22/6 Br with tight necks. They were never considered a threat to the 6ppc shooters but was a good entry level rifle for maybe local match and to attract future Br shooter who didn't want to put out $2,500 or so for a good BR rifle. If I remember right they ran around $1300/1500 ( extra for the Rem Br trigger)that was the going price back in the 80's. In Volume II March 1986-March 1987 from Precision Shooting magazine they posted the results from the Super Shoot some were still using the Rem action(700,X-P100,40x) chambered for the 6ppc so those Rem 40x 22/6Br green stock rifles had less value than those rifles.

Jim Stekl used the BR case in some matches and it was on the early BR case he designed. I think it was Seeley Masker who first shorten the 6Br case trying to get it to shoot with the 6ppc and that was the only way the BR case won a match. I was shooting what they call a 6brshortentalldog still have two of those rifles from back then both those rifles are about 24/25yrs old now.

When Kelby got the first shipment of Laupa brass that killed the Br case alot tried the short 22Br also.

You have to go back to the 80's to understand this but alot was going on then with the start of the 6mm VLD bullets back then I shooting 6x284 for the 6 VLD bullets some shooting the 243 case. The perfect match for the 6mm VLD bullet/velocity was the Norma case plus Norma did a good PR job on those 6Br cases.

here is some information on the 22Br case
http://en.wikipedia.org/wiki/.22_BR
 
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I'm familiar with the 6BR Remingtion, but what is that 6BR Norma? Never heard of that one.

Martyn



For all practical purposes - it is the same case with neck dimensions that are NOT neck-turned.

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I'm familiar with the 6BR Remingtion, but what is that 6BR Norma? Never heard of that one.

Martyn



For all practical purposes - it is the same case with neck dimensions that are NOT neck-turned.

.



Cat,

Thanks. I appreciate the info.

Martyn
 
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Quote:
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I'm familiar with the 6BR Remington, but what is that 6BR Norma? Never heard of that one.

Martyn



For all practical purposes - it is the same case with neck dimensions that are NOT neck-turned.

.



Cat,

Thanks. I appreciate the info.

Martyn



I probably should have worded that a little better.

They are the same cartridge, but with the standard Remington 6mmBR, you will need to neck turn the cases and cut back the necks. With the 6mmBR Norma you use the cases out of the box.

But the real winning combination these days is the Lapua case in a "no turn" chamber (the Norma dimensions).

Hardly anyone is now cutting chambers for the original 6mmBR with a 0.262 neck anymore - it is just too much of a pain in the tail

If you find a good tight neck 6mmBR, you can have the chamber or neck punched with a no turn reamer without a barrel setback.

.

 
I'm using Lapua brass and the guy that built the rifle told me it was reamed for the Lapus brass. He told me that I did not have to neck turn. So, I have a 6BR Rem. with a Lapua "no turn" chamber? My fired case measures .270. You folks can't see me, but I'm scratching my head and wondering" What the *^%$? Actually, I'm beginning to start to understand.
 
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I'm using Lapua brass and the guy that built the rifle told me it was reamed for the Lapua brass. He told me that I did not have to neck turn. So, I have a 6BR Rem. with a Lapua "no turn" chamber? My fired case measures .270. You folks can't see me, but I'm scratching my head and wondering" What the *^%$? Actually, I'm beginning to start to understand.



Yup, Psycho-Puppy...

You got it.

That's scary. /ubbthreads/images/graemlins/smile.gif

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I'm familiar with the 6BR Remington, but what is that 6BR Norma? Never heard of that one.

Martyn



For all practical purposes - it is the same case with neck dimensions that are NOT neck-turned.

.



Cat,

Thanks. I appreciate the info.

Martyn



I probably should have worded that a little better.

They are the same cartridge, but with the standard Remington 6mmBR, you will need to neck turn the cases and cut back the necks. With the 6mmBR Norma you use the cases out of the box.

But the real winning combination these days is the Lapua case in a "no turn" chamber (the Norma dimensions).

Hardly anyone is now cutting chambers for the original 6mmBR with a 0.262 neck anymore - it is just too much of a pain in the tail

If you find a good tight neck 6mmBR, you can have the chamber or neck punched with a no turn reamer without a barrel setback.

.





That's good info..
Much appreciated.

Martyn
 


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