Gunsmithing Rainier Arms Ultramatch questions

[KCode]

So I had a bit of a conversation with a Rainier Arms tech and was told these barrels are made in house. I asked again if they made these in house and he again said "yes". I asked why they made the 300 blackout barrel in such an odd length and he said because any shorter than 10" the accuracy isn't there and the Match barrel would be better (but they sell a 4" 9mm UM barrel?).

Who makes the Ultramatch barrels? Does Rainier Arms really make them in house or do they have them made by someone else?

 

[Precision Underground]

Not sure who makes them but the one we just got is the prettiest I’ve ever seen on a borescope. Haven’t had time to shoot it much at all but if it shoots as good as the rifling and chambering looks it will be good.

 

[padom]

So I had a bit of a conversation with a Rainier Arms tech and was told these barrels are made in house. I asked again if they made these in house and he again said "yes". I asked why they made the 300 blackout barrel in such an odd length and he said because any shorter than 10" the accuracy isn't there and the Match barrel would be better (but they sell a 4" 9mm UM barrel?).

Who makes the Ultramatch barrels? Does Rainier Arms really make them in house or do they have them made by someone else?

Lol I don't know how many more Rainier Ultramatch barrel threads we need but all this has been answered....unless this has changed, I have in writing from Mike directly who makes their MOD2 Barrels and what blanks are used.

Regardless, their 10" 300blk UM barrel is a hammer...idk why the who or what matters on that one...I've tested 3 of them now in 3 different years...tack drivers

 

[Wile_Coyote]

Who makes them?

 

[padom]

Who makes them?

Craddock....Criterion blanks...this is the 3rd time I've posted that info this week.

 

[Wile_Coyote]

Thanks, I haven't been on here in a while and not much at all lately.

Thank you for the interesting info

 

[KCode]

Craddock....Criterion blanks...this is the 3rd time I've posted that info this week.

Sorry, I didn't see anything else about them. I'll search because I certainly want to read more. I've honestly never heard of Craddock barrels but really, the UM barrels are Criterion blanks!? I knew Criterion were good but these UM barrels seem to reach God like status for some reason.

 

[KCode]

300 Blackout Bartlein Barrel

These 300 Blackout barrels are drop in replacements for your AR15. These run a pistol gas system to help with cycling.

craddockprecision.com

Why does a company like this make a 30cal barrel with a 5.56 feed ramp? I've read that one of the good things about V7 is that they use true 30cal feed ramps for their 300 blackout barrels.

 

[padom]

Help me choose a barrel - WOA, CLE, Ranier, Larue, Odin Works, Wilson Combat?

I’m putting together a more accuracy focused build but I still want the gun to be light enough to carry around for hunting. I’ve settled on a 16” barrel. I don’t mind the barrel being heavier than something like a Criterion Core but I’d still like to keep the weight down if possible. I don’t...

www.snipershide.com

 

[padom]

Gunsmithing - I need help choosing BEST 300 Blackout in 10.5

Well while doing searches I run across either really old threads or barrels that no longer are made. I had my mind set on a Rainier Arms Ultra Match but it is only offered in 16" now. I then thought of Noveske but read some people that said for the money they are nothing to write home about. Not...

www.snipershide.com