Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Reply

Opinion on 180 Grain Bullet Out of a 1:12

 
LinkBack Thread Tools Display Modes
  #1  
Old 10-11-2011, 12:22 AM
HJW HJW is offline
Bronze Member
 
Join Date: Oct 2011
Posts: 71
Opinion on 180 Grain Bullet Out of a 1:12

I am currently shooting a Remington 700 SPS Tactical, completely stock.
I was thinking about shooting 180 grain Nosler Ballistic Tips out of it.
Does anyone think that my 1:12 twist ratio could handle this bullet?
Would it be ideal?

Best Regards,

Hunter J. Welch
Reply With Quote
  #2  
Old 10-11-2011, 12:44 AM
Platinum Member
 
Join Date: Feb 2011
Location: Halfway between Lubbock and Dallas
Posts: 5,161
Re: Opinion on 180 Grain Bullet Out of a 1:12

Quote:
Originally Posted by Hunter Welch View Post
I am currently shooting a Remington 700 SPS Tactical, completely stock.
I was thinking about shooting 180 grain Nosler Ballistic Tips out of it.
Does anyone think that my 1:12 twist ratio could handle this bullet?
Would it be ideal?

Best Regards,

Hunter J. Welch
.308win or??? 180's really need a 1:10. I'd think you'd do much better with 160-170's at the heavier range and it should be superior with 155-165's.
__________________
Without the First and Second Amendments the rest of The Constitution is Meaningless.

Last edited by WildRose; 10-11-2011 at 12:48 AM.
Reply With Quote
  #3  
Old 10-11-2011, 05:43 AM
Silver Member
 
Join Date: Sep 2011
Location: Geary, Oklahoma
Posts: 204
Re: Opinion on 180 Grain Bullet Out of a 1:12

Ditto to WildRose.
Reply With Quote
  #4  
Old 10-11-2011, 09:20 AM
Platinum Member
 
Join Date: Feb 2009
Location: Sedalia, MO
Posts: 1,253
Re: Opinion on 180 Grain Bullet Out of a 1:12

Hunter,

A quick check of Bryan Litz's work indicates a nominal stability factor of 1.3 for this combination. Stable, but getting into marginal territory. At the best case scenario, it goes up to around 1.49, which indicates good stability. I'd give it a shot and see what happens. Given that you've got a buttoned there, and they tend to vary a bit, it could be a tad faster than a true 1x12", which would be a good thing for you here. Of course, it goes both ways and could be a bit slower, too. If so, you're even closer to the edge. In any case, it's worth trying just to be sure.
__________________
Kevin Thomas
Lapua USA
Reply With Quote
  #5  
Old 10-11-2011, 09:34 AM
Platinum Member
 
Join Date: Dec 2005
Posts: 2,114
Re: Opinion on 180 Grain Bullet Out of a 1:12

I've shot a couple thousand Sierra 190 HPMK's from a 1:12 twist barrel in a 7.62 NATO converted Garand. Excellent accuracy indeed; they'll hold 4 inches at 600 yards and easily 10 inches at 1000. Not too shabby for a gas gun with new cases in a mil spec chamber. And several hundred Lapua 185 grain FMJRB and Sierra 180 grain HPMK (the old Sierra's with a longer boattail) match bullets from the same barrels giving the same accuracy. These were favorite long range loads (600 yards and further) for both the USN and USAF Rifle Team's 7.62 NATO Garands Civilians used them too with much success

The US Army Rifle Team was famous for pulling the 172 gr. bullet from 7.62 NATO match ammo and replacing it with a Sierra 180 HPMK. In their M14NM's 1:12 twist barrels, they won a lot of matches setting some records along the way.

A couple hundred Sierra 180 HPMK's from a 1:13 twist .300 Win. Mag have easily held 7 inches at 1000 from a 9 pound hunting rifle. And a few hundred 180 Sierra HPMK's from a .30-.338's 1:12 twist barrel; very accurate at 600 and 1000 yards.

And Winchester's Model 70 target rifles in .308 Win. gave excellent accuracy with Lapua 185 graing match bullets; their .3092" diameter did very well in Winchester's .3086" groove diameter barrels.

Yes, a 1:12 twist will shoot 180's very well indeed as long as they leave over 2650 fps. They've been doing it for decades.

Last edited by Bart B; 10-11-2011 at 02:15 PM.
Reply With Quote
  #6  
Old 10-11-2011, 10:05 AM
Silver Member
 
Join Date: Dec 2010
Posts: 168
Re: Opinion on 180 Grain Bullet Out of a 1:12

Not hi jacking but what about bullet weights for 1:11.25 in remington 5R? .308
Reply With Quote
  #7  
Old 10-11-2011, 10:12 AM
Platinum Member
 
Join Date: Dec 2005
Posts: 2,114
Re: Opinion on 180 Grain Bullet Out of a 1:12

Quote:
Originally Posted by big mike 2121 View Post
Not hi jacking but what about bullet weights for 1:11.25 in remington 5R? .308
When the .308 was "the" cartridge for high power matches, folks used weights from 168 through 200 grains in their 1:11 twist barrels. In fact, the most accurate rifles through 600 yards I know of are .308's with a 1:11 twist 26-inch barrel shooting 190's.

Your 1:11.25 will do well with these bullet weights. Reduced loads with 150's are also very accurate.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Opinion on 180 Grain Bullet Out of a 1:12
Thread Thread Starter Forum Replies Last Post
150 Grain Bullet for .308 1:12 xAsylum Long Range Hunting & Shooting 5 10-20-2011 03:51 AM
What grain bullet Coyote204 Rifles, Bullets, Barrels & Ballistics 3 09-20-2011 12:51 PM
Bullet choices, what do you think? I value your opinion NoMoreOldNo7 Rifles, Bullets, Barrels & Ballistics 1 05-08-2011 07:26 AM
RL-17 in a 300 WSM with a 200 Grain bullet TAMU Hunter Reloading 1 05-21-2010 08:16 PM
what 200 or 220 grain bullet tired Rifles, Bullets, Barrels & Ballistics 5 06-27-2004 03:57 PM


All times are GMT -5. The time now is 01:39 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC