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450 Bushmaster

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Unread 08-01-2010, 01:57 PM
Platinum Member
Join Date: Jul 2004
Location: Texas
Posts: 7,230
Re: 450 Bushmaster

One more update for the guys that have the 450 Bushmaster.

I am a big fan of the Vias Break but I found it insufficient for controled follow up shots

Ron Bartlett of Vias Told me that brakes were less efficient with the big bores because of
lower pressures and velocities ( They reduce recoil about 30 to 35 %) and this was the

I have the Vias brakes on some 300s and 338s and they work very well.

So I decided to build a large 3 or 4 port break and see if that would make a difference,
And it did.

The port size is 3/4" X 3 and it allows more gas to escape to the sides and not follow the

I also fabricated a fish gill break like the 50BMG has (Only not as big) and it had about the
same recoil reduction as the 3 port did but was noticeably louder and strung the group out

The round 3 port performed very good and shot one group @ 100 yards that was .722 and
another at .938 And consistently less than 1 MOA .

If anyone wants to Tame the 450 for Quicker follow up shots the big side port brakes Like
the Holland, DE, Pain killer and others should make a large difference.

The only problem is the 11/16 24 TPI is not common and you will have to get the manufacture
of the break to thread it to fit the 11/16 x 24 barrel threads. )That is the reason I fabricated
my own.

I can't wait to ware out some hogs with it.


Last edited by J E Custom; 08-02-2010 at 01:41 PM.
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Unread 04-22-2014, 08:10 AM
Silver Member
Join Date: Sep 2013
Location: Virginia
Posts: 172
Re: 450 Bushmaster

Originally Posted by J E Custom View Post
I would like everyone's opinion on the 450 bushmaster round in an AR platform.

I found a good deal on one and though I would try it for Hogs,

Any experience with it on large/tough game ?

Please share good or bad.

It would be used for up close and comfortable hunting. (250 yards Max).

The factory load looks like a good starting point (250grain FTX @ 2200 ft/sec
and 2686 ft/lbs of energy at the muzzle.

Pictures of kills would also be great.


Yes I am fond of it... Anything in North America will go down hard from this round. Honady 250gr, Remington 260 gr or handloading with 325gr 452dia Swift Bullets. reloading with the 325 Swifts is devistating.

Jim Clarke
27 YR Mil Vet Ret.
God, Country and Family.
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