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Feb 12th, 2024
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 .450BM Question
#8202394
03/14/21 03:15 PM
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Joined: Dec 2009
Posts: 1,325
bowassin
OP
Pro Tracker
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OP
Pro Tracker
Joined: Dec 2009
Posts: 1,325 |
So I purchased a .450 bushmaster upper from Davidson defense
And put on my ar15 and installed the .223 bolt and charging handle
It will pick up a round and chamber it but won’t pick it up to eject it
Do I have to get a .450 bolt?
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Re: .450BM Question
[Re: bowassin]
#8202405
03/14/21 03:24 PM
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Joined: Dec 2008
Posts: 42,412
J.G.
THF Celebrity
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THF Celebrity
Joined: Dec 2008
Posts: 42,412 |
What is the case head diameter of a .450 Bushmaster?
What is the case head diameter of a .223 Remington?
These are the questions you go search for the answers for.
![[Linked Image]](http://www.precisionriflehunters.com/wp-content/uploads/2017/07/garvey.jpg) 800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
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Re: .450BM Question
[Re: bowassin]
#8202423
03/14/21 03:40 PM
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Joined: May 2011
Posts: 2,017
TAB
Veteran Tracker
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Veteran Tracker
Joined: May 2011
Posts: 2,017 |
So I purchased a .450 bushmaster upper from Davidson defense
And put on my ar15 and installed the .223 bolt and charging handle
It will pick up a round and chamber it but won’t pick it up to eject it
Do I have to get a .450 bolt? Usually the specialty uppers come with a new bolt carrier group. If that’s not the case with what you purchased absolutely you need at minimum a new bolt head.
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Re: .450BM Question
[Re: bowassin]
#8202998
03/15/21 12:34 AM
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Joined: Nov 2010
Posts: 5,279
jeepercreeper
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2010
Posts: 5,279 |
At first i thought there was some new cartridge out that was named the 450 Bowel Movement.
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Re: .450BM Question
[Re: jeepercreeper]
#8203155
03/15/21 03:12 AM
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Joined: Jan 2013
Posts: 3,519
TLew
Extreme Tracker
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Extreme Tracker
Joined: Jan 2013
Posts: 3,519 |
At first i thought there was some new cartridge out that was named the 450 Bowel Movement. There is...your first cup of coffee needs to be at 0430
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Re: .450BM Question
[Re: bowassin]
#8203220
03/15/21 04:24 AM
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Joined: Feb 2015
Posts: 5,574
flintknapper
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2015
Posts: 5,574 |
The Bushy (just like the 458 SOCOM and 50 Beowulf) takes a special bolt face.
In your case its's a .223 bolt with the bolt face opened up to a nominal .473"
Spartans ask not...how many, but where!
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Re: .450BM Question
[Re: bowassin]
#8203257
03/15/21 10:25 AM
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Joined: Aug 2017
Posts: 561
KK30RAR
Tracker
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Tracker
Joined: Aug 2017
Posts: 561 |
So I purchased a .450 bushmaster upper from Davidson defense
And put on my ar15 and installed the .223 bolt and charging handle
It will pick up a round and chamber it but won’t pick it up to eject it
Do I have to get a .450 bolt? Most definitely you need a 450 bolt .
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Pulsar xq30f Helion
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![[Linked Image]](https://texashuntingforum.com/forum/pics/userpics/2021/03/full-3669-285833-450bm.png)