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Old 11-14-2012, 13:46   #1
Sgt.K
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Do FMJHP's expand?

Just wondering if .223/5.56 full metal jacket hollow points in either 55 or 62 grain actually expand as, I imagine, a semi jacketed would?
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Old 11-14-2012, 14:08   #2
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The .223 HPs

have a sizable cavity. And at the high speeds they operate, bullet expansion is very likely.
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Old 11-14-2012, 15:52   #3
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Rifle JHPs don't expand like pistol rounds do, they fragment. All the hollow point does is (supposedly?) aid accuracy and tendency to yaw (which causes fragmentation).

Jacketed Soft Points (JSPs) expand though. I don't hear them referred to as "semi-jacketed" much.

Last edited by cowboy1964; 11-14-2012 at 16:47..
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Old 11-14-2012, 19:55   #4
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Well

Quote:
Originally Posted by cowboy1964 View Post
Rifle JHPs don't expand like pistol rounds do, they fragment. All the hollow point does is (supposedly?) aid accuracy and tendency to yaw (which causes fragmentation).

Jacketed Soft Points (JSPs) expand though. I don't hear them referred to as "semi-jacketed" much.
how very interesting . . . . .
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Old 11-14-2012, 18:40   #5
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FMJHP is kind of an oximoron. The open tipped match type bullet can expand but can also pencil thru or fragment. Why they are not the best choice to hunt with in most calibers. A true JHP rifle bullet can certainly expand properly if designed to do so.
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Old 11-14-2012, 22:33   #6
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Quote:
Originally Posted by fredj338 View Post
FMJHP is kind of an oximoron. The open tipped match type bullet can expand but can also pencil thru or fragment. Why they are not the best choice to hunt with in most calibers. A true JHP rifle bullet can certainly expand properly if designed to do so.

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Old 11-15-2012, 16:11   #7
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Question

Do ammo makers offer .308Win with hollow point bullets?
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Old 11-15-2012, 22:53   #8
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Quote:
Originally Posted by SCmasterblaster View Post
Do ammo makers offer .308Win with hollow point bullets?
Yes
Federal match ammo comes to mind.
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Old 11-16-2012, 13:56   #9
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Yes
Federal match ammo comes to mind.
Thanx!
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Old 11-17-2012, 18:53   #10
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Also, there are/were some combloc steel jacketed HP rounds sold cheap at one time. They looked like they would be good expanders, but apparently some of them acted just like ball ammo.

Overall, you need to see what a specific bullet was designed for. The bullet/ammo companies make the bullets/ammo for specific purposes.
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