Opinions on 6XC

beltfed

beltfed

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I'm thinking of doing a Precision Build with 6mm as a basis.
Needs to be mag fed, and feed the longer bullets.

I was thinking of 6BR after fondling and firing Excel's awesome little Sako.

However, I've run across the 6XC and think I'm smitten...
I already have .223 and .308 covered, so please keep the discussion to a 6mm caliber...thanks.;)

This is going to be for out to 1000m, precision fun, and competition.
I'm a SR guy who may just dive into F-Class (but that sled stuff isn't for me)

I've got one highly respected opinion covered, (thanks Jay) let's hear yours!
 
I think I would look at the 6 x 47 Lapua before the XC. Both cartridges are very similar but the Lapua brass is readily available in Canada where as getting XC brass across the border is a real pain. The performance between the two is the same. If you want to magazine feed you need the longer cartridge over the 6BR case. Steve
 
I've got them all. I have given up on the 6X47L as a finicky pain in the a$$ and I have built two. Life is too short for a cartridge that won't shoot without trying 5 powders, 4 bullets, ladders tests, and seating depth tests to learn it is only mediocre.

If I were to build a super-accurate long distance 6mm, I would go 6mm Dasher. It is essentially a 6BR with a 40 degree shoulder and less taper. 3000 fps+ with 105 bullets and every bit as accurate as the 6BR.

The XC is based on the 22-250 case which is its plus AND its minus. You have the choice of creating brass from bulk winchester and it isn't too bad, but you'll end up culling a fair amount. It has a large rifle primer and that is a negative in my mind. The other options are Tubb brass or 6CX Norma. Of the three, i like the Norma the best, but it is soft and it is VERY expensive. Primer pockets were loose after about 7 firings.

Accuracy is good, but not in the same class as the BR in my opinion. It was designed as a cross-the-course (hence "XC") high-power cartridge.

It uses 25% more powder than the 6BR, but certainly does not give you 25% more velocity.

Many guys have manged to make the work quite well, and when they work well, they are hard to beat. I still think the 6 Dasher is the way to go, unless and only unless you want to try and make the Berger or Tubb 115 bullets work. I think the dasher is a bit under-powered for 115's.

If you want to go this route (XC), go with a 30" 7.5 twist .236 bore barrel.

The last option is the 243 Winchester. It eats barrels and it still won't beat the BR/Dasher for inherent accuracy.
 
6mm

I have the 6x47L and like it, but it is a temperamental case, after some advise from Obtunded: the VV-n560 powder, I finally got it to shoot. Powder is very expensive for this 1000M BR rifle.
If I was to build another(it should arrive this coming week) it's in 243Win with an 8 twist barrel. I believe this cal will allow you to use the 115GR Berger, remains to be seen. For F-class the 243 should work well, the 20 degree shoulder allows for smooth feeding.
Bill
 
b72471 said:
If I was to build another(it should arrive this coming week) it's in 243Win with an 8 twist barrel. I believe this cal will allow you to use the 115GR Berger, remains to be seen. For F-class the 243 should work well, the 20 degree shoulder allows for smooth feeding.
Bill
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I'm with you Bill I think the 243 is a great round, I have been wondering about the 243 AI as well. My next build will be one of these,just not sure which one yet.
Cheers
Bucky:wave:
 
LOL, it's a slippery slope. 6x47 (the original) not quite fast enough for the bullets I want to shoot. Built a 243, then a 6mm Rem. Wondered about the 243 AI, so had to try that, then a 6mm Rem AI. How does that compare to the 6mm-284? Oh, well, must try that one. Hmm, a 240 Gibbs you say? Yeah, yeah, built one. But wait, there's the 6mm MkIV. Damn. Now there's these new ones to try out. The BR works well, and the PPC is scary accurate. But not quite quick enough. X and XC and Dash. Hmm, maybe if I just twiddle with the 243 case design some more, I can reinvent the wheel just enough to finally be satisfied. LOL indeed. - dan
 
I'm with you Mike.

Nothing beats the BR for accuracy. If you want pure unadulterated velocity with no finesse, go 6 rem. If you want to hit your target exactly where you want, go 6BR
 
Thanks for the input guys.

the little BR I shot was pretty sweet, but I'm not going to bother trying to make it feed from a magazine, nor shoot it past 800m.
243 winchester is likely my starting point -at least until the barrel is toast.
I think then I'll probably rebarrel to XC.
 
I'm building an 6XC specifically to shoot the 115 Dtacs.Mysticplayer can get all the brass and bullets you need at decent prices.I'm looking to shoot it in Ottawa against the 6.5x.284's that are currently killing everyone in sniper.Should be fun!I have all the pieces except the action.Got a barrel in 7.5 from Bartlein.
 
Borden range last year
11 shots, one to put the marker in and ten in the marker.
600 yds, about a 5mph steady breeze.

600ydsorangemarker2.jpg


6BR built on an XR 100 Rem. 31" 1-8 tw Mac Lennan barrell , 42 X NXS, 2oz. kelbly trigger off of a bi pod.

6 BR works.

M.
 
Something heard on the Internet far too often "It'll shoot a half-minute, it I do my part". Something not seen too often - "doing my part".

It looks somebody did their part:

- sub-1/2 minute group (assuming a ~3" spotting disc)
- at 600 yards (not 100)
- ten shots (not three)
- delivered to a specific aiming point (which actually makes this equivalent to an 11-shot group)

Icepick, well done(!!!)
 
I'm building an 6XC specifically to shoot the 115 Dtacs.Mysticplayer can get all the brass and bullets you need at decent prices.I'm looking to shoot it in Ottawa against the 6.5x.284's that are currently killing everyone in sniper.Should be fun!I have all the pieces except the action.Got a barrel in 7.5 from Bartlein.
Click to expand...
I'm sure the 6XC will help your long range scores. It will be able to run with the 6.5x284's in the wind with less recoil. The wind at the last NSCC was pretty tough to score well in. I found the best way to score higher in Match 65 and 66 was to shoot F Class. Good luck with your project...see you next year.
 
Thanks rnbra, I was having a really good day, everything was working right. It must have been cause Terry wasn't there to beat me, laff.
I sold that one to a guy out east.
Changed my 6PPC over to a BR.

I get real good advice from the other O.R.A shooters. It was suggested I quit the Varget and replace it with Reloader and switch the Sierra 107's for Lapua 105's and it tightened up the group quite a bit, not that you,d notice at 100 but further out you do.

Where it's a fight for me is keeping up or beating the 6.5-284's at 1000. BR is dynamite to 800.

M.
 
I like RL-15 in terms of its batch to batch consistency, but it was no better than Varget and it was dirtier.

In terms of bullets, I have never had BR that did not shoot Berger VLDs VERY well. Not so with Sierras, but many guys using them do every bit as well as the Bergers. 105 Amax is a dog and I have never made lapuas work - ever. There is a new Nosler 105 match with a G1BC of nearly .600 that I would like to try.

Also the 105 BT match bullets and 108's have likewise demonstrated phenomenal accuracy.
 
Terry Perkins said:
I'm sure the 6XC will help your long range scores. It will be able to run with the 6.5x284's in the wind with less recoil. The wind at the last NSCC was pretty tough to score well in. I found the best way to score higher in Match 65 and 66 was to shoot F Class. Good luck with your project...see you next year.
Click to expand...

Thanks Terry.It sure was fun trying to keep up to you guys with the .338L.The wind was fun for sure.Once I get this project going I will most likely start shooting F Class here in BC to get some practice.
 
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