.223 75 Grain TAP @ 200 yards


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1lostinspace
November 3, 2007, 07:28 PM
Does anyone have any data on penetration or fragmentation at that range?
It's almost at 2700 at muzzle out of my 16"

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usp_fan
November 4, 2007, 01:12 AM
Hornandy lists the 200 yrd velocity at 2383 ft/s. Remember, with this round you are not constrained to a majic velocity number like with military ammo. This round is designed with an expanding projectile that will open at much lower velocities than the 55 and 67 grn FMJ the .mil guys use. This is part of the equation of using heavier expanding tip bullets in the .223. You can get much better performance and loose velocity at a slower rate than with the mil-spec stuff.

DMK
November 4, 2007, 01:41 AM
This round is designed with an expanding projectile that will open at much lower velocities than the 55 and 67 grn FMJ the .mil guys use.It is not an expanding projectile. Fragmentation is the terminal effect. TAP (along with every other OTM or BTHP) was initially designed as a match projectile. The open tip is just part of the manufacturing process. If you want expanding rifle projectiles, use softpoints.

It has been found that these BTHP rounds fragment very reliably at around 2300 fps or faster.

1lostinspace
November 4, 2007, 11:26 AM
I ll try it using water jugs and cardboard behind it.

Fly320s
November 4, 2007, 11:47 AM
I don't have the answer, but AR15.com might.

They have an extensive, informative ammunition section there. Read all about it: http://www.ar15.com/forums/forum.html?b=3&f=16

DMK
November 4, 2007, 12:01 PM
Also some good info on these sites:


http://www.theboxotruth.com/

http://www.ammo-oracle.com/

BsChoy
November 4, 2007, 12:03 PM
dmk, the tap rounds are Amax bullets, are they not? Meant to expand....IIRC

DMK
November 4, 2007, 12:23 PM
dmk, the tap rounds are Amax bullets, are they not? Meant to expand....IIRC

According to Hornady's website (https://www.hornady.com/shop/?ps_session=b8feff62a887de8d00d2b4300a2b6550&page=shop%2Fbrowse&category_id=f5a8f338ed2cc84911aec57bb74a84a5), I don't think they are. The 55 and 60gr TAP use V-max projectiles, it looks like 75gr uses BTHP Match. The 308 TAP (https://www.hornady.com/shop/?ps_session=b8feff62a887de8d00d2b4300a2b6550&page=shop%2Fbrowse&category_id=38ae14621e593b989097d812b0a92046) uses Amax projectiles and that does have very impressive terminal effect (http://www.thehighroad.org/attachment.php?attachmentid=40685&d=1149203874).

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