6mm build
- Thread starter Robmcleod82
- Start date
This is sound advice, another consideration is getting the 6br to feed from a mag. I would bet the 243ai would feed better.
Your a bad influence TCHARDY!! Ive got dies, and brass and reamers for the 243ai and the 6br options already I dont need any more 6mm options at the moment.... Gotta get spitting out some rifles on the new lathe.
90% of the time, I single load 6BR even though the rifle has a magazine. Someone did the minor work with the .223 polymer magazine, removed the front lip to let the 6BR flow through.
And the video:
I'm not sure if he did some modification with the magazine.
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
Decide on the mag you want to use and if you want to fuss with the mag you want to use.
AI rds do not stack well in AICS type mags... I wish they did.
Jerry
I have owned both the 6BR and the 243ACK for LR target. The 6BRs are now 6 DASHERS (the dasher has a slight edge over the BR), and the dasher is NOT fussy over powders as I found the 6x47Lapua to be. Either one, dasher or 243ack are excellent for LR target.
Enjoy.
Enjoy.
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arcticcathonda
CGN frequent flyer
- Location
- Southern Alberta
How do you mean they do not stack well Jerry? I am running 260AI from an AICS mags successfully, about to get a couple more and curious what to look out for?
Schecter 81
Regular
- Location
- Edmonton Area
I know my 338AI had to have the front rib dremeled out to allow the new shoulder to fit. Not sure if that us what Jerry is referring to. My mag is an Accurate though. Not AI.
Schecter 81
Regular
- Location
- Edmonton Area
My vote would have been for the 6XC. Split the difference. Better velocity than the br. Better barrel life than the AI. But I can understand not wanting to get into another caliber.
The 6BR has set world records at 1000 yds. The 6x47 seems like an interesting round but there is a lot more information for 6BR out there and brass seems easier to come by. The 243AI will be VERY hard on the throat. I'd only go with the big 243 for extreme long distance shooting ..... like in excess of 1500 yds.
Well then barrel life is a freebie to you. Go 243 AI, burn up that barrel.......and have fun doing it!
Have you looked at the 6mmslr. Don't have any experience with it myself, but it looks like you get qualities of a 243 case capacity but longer barrel life. Have seen people reporting 2000-3000+.
Ryan
calgarycanada
CGN Regular
- Location
- Calgary, Canada
I've been shooting the 6mm Crusader for a few years now, and have gone through several barrels. I run the DTACs at around 3125 fps in 27-28" barrels, and all of my barrels have lasted between 2100-2400 rounds before I start seeing vertical outliers at distance. It can shoot them quite a bit faster, but there seems to be a really tight node around that velocity, so I haven't felt the need to push them faster. The benefit is that brass has lasted forever (I stopped counting after 18 firings) since the pressure isn't very high. That's probably why I'm getting the same barrel life people are reporting with the smaller 6s (XC, Creed, x47) while burning significantly more powder. George Gardiner found that running the 6.5 SAUM 4S at low pressure, the barrels last as long or longer than smaller cartridges running less powder at high pressure.
That has me thinking that if you run the 6SLR at the same velocities as the 6-47 or 6XC, you should get better barrel life even if you're burning a bit more powder. The pressure should be significantly lower, like it is in the 6.5 SAUM 4S and in my 6mm Crusader load, but you also have less powder than the 6mm Crusader.
That has me thinking that if you run the 6SLR at the same velocities as the 6-47 or 6XC, you should get better barrel life even if you're burning a bit more powder. The pressure should be significantly lower, like it is in the 6.5 SAUM 4S and in my 6mm Crusader load, but you also have less powder than the 6mm Crusader.
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paperslayer
Regular
- Location
- Chilliwack
If you want the single most precise and easy to load cartridge ever designed for shooting beyond 200 yards, go 6BR. If you want less than that, go with something else. If you have too much hair and a good collection of expletives not doing anything, build a 6mmX47 Lapua.
Yes, it has broken several records however you had to shoot 5 or 10 shots under a minute before the wind changed. It was for benchrest shooting. For tactical shooting match, I'd choose 284 WIN. 7mm Berger bullet has higher B.C. than 6mm.
