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9/22/2017 12:11:25 AM
Posted: 5/5/2003 12:43:48 AM EDT
Anyone have any information on Black Hills 73gr Berger BTHP loaded with their Length Tolerant Bullet?

73gr BTHP @ 2750fps, Berger's sight says the recommended twist is 1/9

Berger
Link Posted: 5/6/2003 4:32:19 PM EDT
BTT
Link Posted: 5/6/2003 5:03:39 PM EDT
Sorry, no help to your topic. But couldn't help add: [I]"Paranoia! Paranoia! Everybody's coming to get me Just say you never met me"[/I] after seeing your sig line.
Link Posted: 5/7/2003 10:58:17 AM EDT
I have some ordered to try in a new Krieger VarMatch barrel with 1/7.7 twist. If you'd like, I'll let you know how it performs.
Link Posted: 5/7/2003 11:03:16 AM EDT
I'll have to try those as well. I have had little success with Hornady's 75 gr. HPBT Match bullet.
Link Posted: 5/8/2003 12:38:05 AM EDT
Someone posted this same question on tacticalforums.com's wound ballistics thread. Both DocGKR and Gary from www.ammolab.com posted that they hadn't tested it cause they hadn't been able to acquire any yet. But they had seen the ad.
Link Posted: 5/8/2003 12:52:02 AM EDT
[Last Edit: 5/13/2003 1:40:58 AM EDT by Lumpy196]
This is what he's given me: Berger 73 gr bullet. Black Hills 73 gr JHP Moly Match, Lot#99-9 1203032389, AR15 16" 1/7, 5 shot average: Vel = 2516 f/s Pen = 12.0" Max TC diam = 3.9" RD = 0.50" RL = 0.20" RW = 28.2 gr
Link Posted: 5/8/2003 5:10:16 AM EDT
Hey Lumpy, can you ask Doc where the yaw/fragmentation process begins with this load?
Link Posted: 5/8/2003 5:58:53 AM EDT
I ordered a couple boxes of it from Georgia Precision to use at 600 yards in highpower matches with my 1/9. Haven't had a chance to try it out yet, though.
Link Posted: 5/8/2003 12:10:47 PM EDT
Originally Posted By Bartholomew_Roberts: Hey Lumpy, can you ask Doc where the yaw/fragmentation process begins with this load?
View Quote
Will do.
Link Posted: 5/8/2003 4:04:50 PM EDT
[Last Edit: 5/13/2003 1:41:25 AM EDT by Lumpy196]
Temporary cavity began around 7 cm and extended to 20 cm. Maximum temporary cavity stretch was 10 cm at a depth of 13 cm.
Link Posted: 5/8/2003 11:24:59 PM EDT
This Berger bullet, is it the one that is the USMC Rifle Teams pet favorite?
Link Posted: 5/8/2003 11:30:51 PM EDT
Apparently
Link Posted: 5/8/2003 11:41:17 PM EDT
Oohh, and its 1in9" rifling tolerant-cool.
Link Posted: 5/13/2003 1:42:34 AM EDT
Ive been informed that despite factory claims, it needs at least a 1/8 twist to stabilize.
Link Posted: 5/14/2003 6:27:26 PM EDT
Well, you just ruined my day.
Link Posted: 5/15/2003 12:06:36 PM EDT
All guns are different. Try some of them in yours.
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