Barrel Opinions Wanted

[Rcmaveric]

Finnal found a manufacture to make my barrels. There 4 different ones I want. 264 LBC and .277 Wolverine in AR15. Savage Axis prefab in 35 Whelen and 260 Rem. Any one hear of X-caliber barrels? Also how does cast perform with 6 Groove rifling? I want 1 in 10 twists and they only have 6 groove for that. I know 5R works just fine. Its also only 350 bucks a barrel with free shipping for military.

Last barrel.cost me 450 bucks and that's what McGowan was gonna charge.

Thoughts or opinions?

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[waksupi]

Xcaliber is about ten miles from me. I've inspected some of the barrels, they look good.

[John Taylor]

X- caliber is one of the newer barrel companies. I got quite a few barrels from them until the price went up. Most of the barrels I use are from Green Mountain ( I'm a dealer). I also use Douglas barrels when GM doesn't have what I need.

[Rcmaveric]

Thanks. Nice to hear they have some good reviews before invest a large chunk of cash into them.

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[flounderman]

I don't know what you are shooting, but I would go faster than 1 in 10

[Harter66]

Flounder .
1-10 is plenty in in the first 2 for AR family 223 and 30 Rem/6.8 based cartridges in 25 & up cal .

For cast it's probably going to be fine in 260 . It's probably way too fast in the 35 though I shoot 250s 2100 fps in a 1-14 358 Win in an older A&B . 35-250 actually .

Standard twists in 6.5 are 8.5&9.5 , I ran bullet weights in 7mm bore riders in the Mountain Molds program and it showed 225 gr still had plenty of twist left over at 1-9.5 . I wish the 6.5s I have worked had 10" twists .

The 6.8 shoots very well in 10 & 11 twists up to 140 gr in a 27-140 I finally have a 270-150 to try in a 5R .

Ive never heard any complaints about X Caliber barrels .

6 right rifling is practically a US standard but it's old school , why mess with something that works . It comes out to a .062 land/groove width in a .264 that's probably why under 30 cal they lean towards 4&5 groove .

[Rcmaveric]

I had decent performances in the 6.5 with 1 in 9 but I had to replace that barrel and with out thinking I put a 1 in 8.5. My 260 Rem has a 1 in 8. Both of these fast twist barrels are performing poorly at anything over 1400 fps. I am curious how well a 1 in 10 will perform in that caliber for 6.5 Grendel and 260 Rem. For the .277 Wolverine, I have had good performance in a 1 in 9 on my 270 Win so was hoping a 1 in 10 will work better. I did all the stableization math for the above and its all good for the bullets I use.

I have not researched twist rates in 35 Whelen yet. I figured it will be in the 1 in 12 ball park.

I was worried about the company reputation and the 6 land barre.. the 6.5 and 6.8mm barrels in that slowing twist only come in 6. The 35 cal comes with a 5R
Thanks for all the replies. Think I will buy from them. Yall have boosted my confidence in them. Was worried about making a 1600 dollar investment into an unknown.

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[Mk42gunner]

Remington standardized the Whelen with a 16" twist, which I think is a bit slow for the 250+ grain projectiles that are possible with the cartridge.

I built my first Whelen using an Adams and Bennett 1:14" twist barrel, and have not been disappointed. Granted I haven't shot anything over 250 grains, but it does what I want.

Hope this helps,

Robert

[Harter66]

RCMav
AR precision builds all of their .277 , 6.8SPCII barrels in 1-10 or 1-11 . The core of those cartridges are 90-110 gr @23-2600 fps , the 6.8 is very good with bullets like the 120 SST , 279-124 @130 gr , and 27-130 to at 140 gr . Speeds around 21-2400 fps deliver the goods .

[VariableRecall]

Any reason why you are ordering custom barrels other than Wildcat cartridge compatibility? Better performance perhaps?

[barkerwc4362]

I have 4 X-Caliber AR barrels. Three AR-15 and one AR-10. All shoot extremely well. They easily meet and exceed their 1" at 100 yards guarantee. My 308 AR-10 barrel will keep 10 rounds of LR equivalent 175gr in less than 1" at 100. I have a 223 wylde 20" match barrel on order from them right now.

Bill

[Rcmaveric]

Any reason why you are ordering custom barrels other than Wildcat cartridge compatibility? Better performance perhaps?

I want to custom twist rates for better performances in cast bullets.

I have 4 X-Caliber AR barrels. Three AR-15 and one AR-10. All shoot extremely well. They easily meet and exceed their 1" at 100 yards guarantee. My 308 AR-10 barrel will keep 10 rounds of LR equivalent 175gr in less than 1" at 100. I have a 223 wylde 20" match barrel on order from them right now.

Bill

Awesome. Exactly what I was looking for.

Remington standardized the Whelen with a 16" twist, which I think is a bit slow for the 250+ grain projectiles that are possible with the cartridge.

I built my first Whelen using an Adams and Bennett 1:14" twist barrel, and have not been disappointed. Granted I haven't shot anything over 250 grains, but it does what I want.

Hope this helps,

Robert

Thank you. You saved me the research and the experience is invaluable.

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