With all this talk of the 6MMBR...

rig_pig69

rig_pig69

Regular
Rating - 100%
37   0   0
Location
on the edge
It gets a fella thinking that maybe I should have one. So, for as much as it seems to have going for it... is there anything wrong with the cartridge?? Is there any reason NOT to have one for general shooting enjoyment??

There is no doubt that the 6.5's have better BC, but they seem fairly limited for varmint bullet selection, and that is what majority of this rifle will spend it's life doing, the rest just seeing how far it'll reach.

So... either talk me into it, or out of it....

Thanks in advance.
 
Nothing to talk you out of. For varmint shooting the 6's rule! 6PPC and 6BR are at the top of the heap when it comes to accuracy [even long range], barrel life and a multitude of varmint and match bullets.
 
Not sure if you are considering custom or factory. For factory, Savage is the most available. They chamber it in both 8 and 12 twist. If you want to go long range (500 meters or more), then the 8 twist is the obvious choice. If you want the ultimate accuracy at shorter ranges the 12 twist with flat base bullets should be the better choice. I say "should" because there is one issue you should be aware of. I have a Savage 12 twist and at least in my opinion the throat length is excessive for the bullets it is able to spin with stability (80 grains or so, and less). I suspect the reason for this is that Savage is likely obligated to meet CIP standards which specify a minimum throat length likely chosen for heavier bullets.

The net result of this is that if you go with a 12 twist in a factory Savage you may not be able to shoot the very light bullets. Berger 62 grain bullets in my gun produce 1.5"-2" groups at 100 meters. However, 68 grain bullets can shoot down to the .1's for three shot groups. Three consecutive targets below.

68BergerS14-10C.jpg


Not an issue with the 8 twist although they will not likely shoot the light ones either. In any case good guns, and they do shoot well within their limitations. Lapua brass, Varget powder, BR-4 primers, good bullets, Forster dies, and you are good to go.
 
The rifle will not be a factory, and will likely be an 8 twist, finished to 24 inches.
I have noticed some talk about mag feeding issues, and just wondered if a centerfeed might be the better way to go??
 
rig_pig69 said:
The rifle will not be a factory, and will likely be an 8 twist, finished to 24 inches.
I have noticed some talk about mag feeding issues, and just wondered if a centerfeed might be the better way to go??
Click to expand...

Mine is a single shot, so can't help you on that one. On a custom be sure the reamer has a suitable throat length for the bullets you intend to use. Most go with a no turn neck. With the old cardboard box Lapua brass that was about 0.272". With the new blue plastic box brass it is reduced to about 0.2706". Best to have your brass in hand and a dozen or so bullets loaded so you can measure the neck, before choosing the reamer neck diameter.
 
I loved my 1st BR so much that I had to have a pair of them :D

Ron AKA said:
Not an issue with the 8 twist although they will not likely shoot the light ones either. In any case good guns, and they do shoot well within their limitations. Lapua brass, Varget powder, BR-4 primers, good bullets, Forster dies, and you are good to go.
Click to expand...

I use the same recipe as Ron except that I have not found a lick of difference between BR-4's and the 450 Magnum primers other than the $10/1000 price difference. Instead of "Good Bullets" I use Berger Bullets ;) and Redding Comp dies.
 
I am getting 3

ordered a Cooper in 6br 1 in 10 with that fiberglass stock from Clay it is real nice but I decided a month later to get Robertson Composites ot build me a barnyard (barnard) in a manners stock and a spare stock for br the JTR you may have hears of this stock as it was designed by me and 2 others in canada, my other barnard that I bought a barrelled action will fit in the br stock so I will have 3

mmmmmmmmm the cooper is unfired maybe I should sell it cause it may just sit on the shelf otherwise

Jefferson
 
If you reload, they are fantastic. If you don't, there isn;t much in the way of cheap ammo.

A super accurate rifle teaches you to be a super accurate shooter. They do it all.

Down side.... you get hooked really really bad.

group.jpg


laddertest.jpg
 
Well, it has a 308 bolt face.... but the 6mmBR Norma (God's gift to uber precision) is derived from making the 6mm BR Remington better,

Calling the 6mmBR Norma a derivative of the 308 is like saying Denise Richards is a derivative of Rosanne Barr... (both brunette)
 
Feeds fine from center-feed style mags, but this round can be made to be one-hole accurrate by tuning powder load, seating depth and neck tension. Having to use the type of neck tension you require for mag feeding may be a bit tight for optimal precision. It will still shoot tighter than anything you've ever seen.
 
6 br

I also have a 6br I ordered from Cooper through Clay with an 8 twist, Can't say enough good things about it , I use it for coyotes and long range target practice , it regularly and easily shoots in the ones(when I do my part) with berger 95 vlds and 31 grs Varget, berger 105's shoot equally well with 29.5 grs Varget.longest coyote to date tipped over at 592 yrds with the 95 hunting vlds,Very easy gun to load for and shoot,a bad day at the range with this caliber is when your groups open up to .5"
 
You must log in or register to reply here.
Back
Top Bottom