Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics


Reply

Which caliber 257 or 264 ?

 
LinkBack Thread Tools Display Modes
  #1  
Old 12-03-2009, 12:21 PM
Junior Member
 
Join Date: Dec 2006
Posts: 29
Which caliber 257 or 264 ?

I picked up a pre 64 win action that was a 30/06 and I am going to have a gun built but can't decided what caliber. It will be for deer to (elk If I ever go). I wanted to go with the 257 weatherby but the 264 win keeps coming up but although i own a stock win with a 24" barrel I think it could be better with a 26" and some hand loads. i don't understand after reading most of my reloading manuals why with the extra powder why the 264 only duplicates the 270 win MV. I am still leaning to the 257 but I think the 264 will buck the wind better... This is my first custom gun and run at a somewhat longrange shooter.. any input would be great .. Thanks
Reply With Quote
  #2  
Old 12-03-2009, 01:33 PM
Platinum Member
 
Join Date: Jun 2001
Location: Potomac River
Posts: 5,059
Re: Which caliber 257 or 264 ?

The case capacity of the two rounds is very similar and you will get similar results with them.

Couple of things to think about.

The 257 suffers from a lack of any high BC bullets from the major bullet suppliers. The 264 has two great choices of either the heavy Bergers or Sierra MKs. You can contact Paul at Wildcat bullets and see when he will be producing the 130 & 142 gr HP RBBT bullets in 257. This will turn the rifle into a fine long range elk rifle equal to the 264. You will most likely need a 1-8 twist barrel to do a good job of stabilizing the bullets. You should think about a 28 inch barrel and slow burning powders. It might be interesting to try a gain twist barrel

Things get tricky when you start to specify the reamer and chamber on a Wby. If you eliminate the freebore then it will not be able to use factory ammo. The path I normally trod is minimum SAAMI chamber with a target leade. I can get a bullet to jam in the leade. There is nothing wrong with freebore if you are willing to live with the fact that the rifle may prefer a bullet that is not really a long range bullet.

If you decide to build a 257 based upon shooting the Wildcat bullets you should buy enough before you order the barrel to burn out the barrel. You run risks either way, but if the rifle does not like the bullets you can resell them. If you build the rifle first and have no bullet, then you are at the mercy of the single supplier of them and his continued well being.
__________________
The Smokin Fur Rifle Club
Reply With Quote
  #3  
Old 12-03-2009, 01:46 PM
Gold Member
 
Join Date: Apr 2009
Location: Eastern Wheat Field near Bennett, CO
Posts: 547
Re: Which caliber 257 or 264 ?

Quote:
Originally Posted by ZRT1000 View Post
I picked up a pre 64 win action that was a 30/06 and I am going to have a gun built but can't decided what caliber. It will be for deer to (elk If I ever go). I wanted to go with the 257 weatherby but the 264 win keeps coming up but although i own a stock win with a 24" barrel I think it could be better with a 26" and some hand loads. i don't understand after reading most of my reloading manuals why with the extra powder why the 264 only duplicates the 270 win MV. I am still leaning to the 257 but I think the 264 will buck the wind better... This is my first custom gun and run at a somewhat longrange shooter.. any input would be great .. Thanks

First semi custom rifle ... I hear that, as I am building my first also.
Yes, a 26" barrel is a good idea for that extra velocity. And still very carry-able.
Just a suggestion as to your caliber, I think a 284 Win would be perfect for your use. You have a 'o6 bolt face so you're not locked-in to a magnum caliber as I was.
( I ended up with a 7mm SAUM to work in my Mag SA )
If it's wind drift that gets your attention, The best 7mm bullets have a better BC and SD. Also you could use heavier bullets than 140 gr for Roosevelt Elk which are as big as horses.

Some have mentioned loosing their deer after using 25-06. 25 cal is not the best for long range harvesting of big game. 6.5 cal is better but 7mm is very good for hunting . 284 Win is a very efficient caliber and excellent for targeting and hunting. You can handload it as hot as you want and there's lots of load data available.
6mmbr.com has several "gun of the week" entries. Good reading. JMHO




JM .02

Last edited by 4bycamper; 12-03-2009 at 02:14 PM. Reason: better info
Reply With Quote
  #4  
Old 12-03-2009, 02:23 PM
Platinum Member
 
Join Date: Feb 2009
Location: Sedalia, MO
Posts: 1,253
Re: Which caliber 257 or 264 ?

Got to agree with BuffaloBob here; bullet selection is totally on the side of the .264" bore. Never been much of a fan of the 264 Win Mag, however. Gvien that it's a 30-06 we're talking about, have you considered a 6.5/284? You'd have the bullet selection there, and it wouldn't require any modification to the bolt since it shares the '06s .473" bolt face. Much better brass available for it than what you'll find for the 264 Win Mag, and the performance isn't that far behind the bigger case. Just a little something to consider . . .

Kevin Thomas
Lapua USA
Reply With Quote
  #5  
Old 12-03-2009, 04:13 PM
Non-Profit Sponsor
 
Join Date: Mar 2008
Posts: 524
Re: Which caliber 257 or 264 ?

If only between those two for sure the 264 because if the great bullet selection
Reply With Quote
  #6  
Old 12-03-2009, 05:02 PM
B23 B23 is offline
Gold Member
 
Join Date: Oct 2008
Location: Spokane, Wa.
Posts: 961
Re: Which caliber 257 or 264 ?

IMO 6.5-06 or 6.5-284 would be the two most cost effective choices. No extra cost involved with either of these choices. 6.5-06 would probably be my first choice. You could go with a 6.5-06 improved too but I don't think there is much gain there.
Reply With Quote
  #7  
Old 12-04-2009, 12:26 PM
Platinum Member
 
Join Date: Mar 2002
Location: Wyoming
Posts: 2,615
Re: Which caliber 257 or 264 ?

The 264 win mag is the same case as the 7mm rem mag. Both of these outperform the 270 winchester. My 257 wby shoots a 100 grain Barnes TSX at 3780 fps. It is incredibly flat and fun to shoot out to about 600 yards. It has blown right through everything we have shot it at and this includes a 550 pound caribou at 486 yards. Beyond that the 264 win mag or STW with a 130 grain swift scirroco .571 BC takes over. The 264 STW shooting this bullet at over 3500 fps is awesome at long range and the 257 wby can't keep up there because of the poor BC 25 cal bullets. Inside 600 yards I would do the 257 wby. If you plan on shooting beyond that then do the 264 STW. The 264 win mag is a little easier on the barrel but not quite as fast so take your pick there. Without modifying your bolt face the 264 gibbs will virtually duplicate the 264 win mag. Within a 100 fps anyway. The 257 gibbs is also a very good one. The 264 and 257 on the JRS design are tops on your bolt face. It is all you can get out of a 280 case which gives you a bit more than the blown out '06 case. I think Pac-Nor can do these. This would get you very close to the 264 win mag on your bolt face. I like the JRS design over the Gibbs because of the short neck (.25") on the Gibbs. The JRS design gives you the same case capacity with a longer neck with the longer 280 parent case.
__________________
Predictions are difficult, especially when they involve the future
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Which caliber 257 or 264 ?
Thread Thread Starter Forum Replies Last Post
What caliber 7mm Rem Mag or 300 Win Mag theicon2u Long Range Hunting & Shooting 78 06-09-2012 11:57 AM
help with a new caliber Booney Long Range Hunting & Shooting 22 04-08-2010 08:38 PM
What caliber? 7 Mag or 300 win? texan79 Rifles, Bullets, Barrels & Ballistics 9 03-30-2010 09:04 PM
best caliber jmeier1981 Rifles, Bullets, Barrels & Ballistics 8 01-31-2009 05:26 PM
WTS: Rem 700 PSS 223 caliber Like new bearclaw46 Guns For Sale 0 03-17-2003 10:51 PM


All times are GMT -5. The time now is 07:39 PM.


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