Greetings!

Talk about the AR15 style rifles chambered in 450 Bushmaster.

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Greetings!

Postby johnpkimble » Wed Dec 05, 2018 4:25 pm

Anyone have any input on Moriarti Arms uppers? They use KAK barrels. Also, 18 vs. 16 inch? Thoughts?
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Re: Greetings!

Postby Hoot » Wed Dec 05, 2018 7:44 pm

johnpkimble wrote:Anyone have any input on Moriarti Arms uppers? They use KAK barrels. Also, 18 vs. 16 inch? Thoughts?


Welcome Aboard John!

I had to wade in and say that if I were choosing a barrel brand name, KAK would not be among the candidates. ;)

couldn't resist...

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In Theory, there is no difference between theory and practice. In Practice, there is.
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Re: Greetings!

Postby Bmt85 » Thu Dec 06, 2018 7:37 am

Welcome!

As far as I know, KAK doesn’t make 450B barrels. Maybe it’s a custom order for that particular company, but I would figure they would go another route. As to KAK quality, it’s ok. I have a 7.62x39 barrel from them that has worked out pretty well, however I wouldn’t use them for much else than a beater barrel.
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Re: Greetings!

Postby johnpkimble » Thu Dec 06, 2018 8:07 am

Thanks for the input. on KAK
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Re: Greetings!

Postby Bmt85 » Thu Dec 06, 2018 9:46 am

I had a chance to look at Moriarti arms, it appears to me they are using quite a few Bear Creek Arsenal barrels. It definitely looks that way for the 450B. Bear Creek is about the same as KAK in my opinion. The 450B is pretty forgiving, so the Bear Creek barrels seem to do pretty good. Just a heads up, you might have to play with a few things to get it to run 100%, the few that I have seen needed to.
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Re: Greetings!

Postby johnpkimble » Mon Dec 10, 2018 12:35 pm

Thanks for the input everyone. Another .450b noob question. Is there any advantage of the 18 inch vs. the 16 inch barrel? I know its only 2 inches but it would add a little weight and some length. This gun is going to be used mostly for brush hunting hogs and deer.
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Re: Greetings!

Postby Bmt85 » Mon Dec 10, 2018 12:50 pm

Comparing barrels that are the same, just different lengths, there is only about a 100-150fps or so difference between a 16" and a 20" using factory ammo. Looking at different brands, there can be as big a difference in velocity.
For a brush gun, you could use a pistol length barrel, and still be effective.
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Re: Greetings!

Postby johnpkimble » Tue Dec 11, 2018 8:07 am

Thanks!
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Re: Greetings!

Postby ardenkent » Tue Dec 11, 2018 6:52 pm

The 450 Bushmaster velocity testing at the Match Grade Machine website implies an 18 to 19 inch barrel is the optimum length.
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