[dont_tread_on_me]

OK this might be a dunbass question but why isn't the !:8 barrel twist industry standard for fighting carbines? It would be better for the heavier bullets and still might work for the 40 grainer's.Hell,even if I were varmint hunting I would still use at least a 55,so what's the deal?



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[TerraShrewsbury]

*shrug* Alex and the engineers said they got about the same test results with the 1:8 and the 1:9. I'm a plinker, so the difference doesn't mean much to me. I know it makes a difference when you use higher grain ammunition.

 

[dmachine]

I like the 1:7 best, I can get 1/2" groups with an AR with one and it will shoot everything great from 55 up. 1:8 is almost as good and used by alot of manufacturers today. I don't understand why they picked the 1:9 for the XCR, I think most of the comp. is using 1:7 & 1:8, which makes more sense with todays heavy bullets. I hope they come out with a med./ light 1:7 5.56 barrel down the road.

 

[Guest]

the varmint loads disintegrate out of a 1-8. I tried the 45grainers and they turned to dust about 8 ft off the muzzle.

that said I prefer the 1-8 too. it's the ideal twist for a fighting carbine.

 

[DSM]

1:8 would do everything I need the barrel to do. The 75gr slugs I shoot work fine in the 1:9 but since my 1:7 AR shoots them better I know the XCR can too.

Speaking of barrels, how's about a 20" barrel with an extended receiver?

 

[MickeyC]

Speaking of barrels, how's about a 20" barrel with an extended receiver?

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