Long Range Hunting Online Magazine

Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Berger Bullets


25/300 Win Mag Dies

LinkBack Thread Tools Display Modes
Unread 12-16-2006, 01:57 PM
Silver Member
Join Date: Aug 2006
Location: Hatchet City, AB,Canada
Posts: 232
25/300 Win Mag Dies

does anyone make dies to neck a 300 Win Mag to 257? I checked the custom dies listed on Huntington and Redding, I also searched on Midway and got nothing.

Anyone shooting one of these?? what kind of velocity are you gettting???

Thanks Guys

Reply With Quote

Unread 12-17-2006, 09:44 AM
Posts: n/a
Re: 25/300 Win Mag Dies

A real barrel burner, probably no better than a .257 Whby or 25-06 akly. I have a std 25-06 that shoots 115 Berger vld at 3200 with Vhit N165. plenty good for chucks out to 1200 yds.
Reply With Quote
Unread 12-17-2006, 02:48 PM
Silver Member
Join Date: Jan 2003
Location: Wallaroo, South Australia
Posts: 201
Re: 25/300 Win Mag Dies

Blygy, I don't have a 25/300WM, but several have reported that the case capacity is about 88 grains, and they get around 4,000 fps with the 100 grain bullet. I would have thought that around 3,800 - 3850 fps would be more realistic in a 26 inch barrel.

Although the 300WM case is about .060 longer than the 257 Weatherby, it is about .015 smaller at the shoulder, so the
capacity is very similar.

I am currently using 300 WM brass to neck down to 257 Weatherby as I have found the Norma 257W brass too soft. The new Norma 257 Weatherby brass is about 87.8 grains compared to 85.2 for the new 300WM brass when necked down to 257Weatherby. So the brass is obviously thicker than the Norma 257W.

I believe that the case capacity of the 25/300WM is best suited to bullets in the 115 - 142 grain range, and would choose a 9 twist barrel for bullets up to 130 grains, or a 8 twist barrel if I was going to use the 142 grain Wildcat ULD.

Good luck on your project. Brian.
Reply With Quote
Unread 12-18-2006, 10:17 AM
Gold Member
Join Date: Oct 2005
Location: Great Falls, MT
Posts: 712
Re: 25/300 Win Mag Dies

Redding carries them in their custom line. I believe the part # is 80728. Any way,the Nov/Dec issue of "Rifle Shooter" has a really good article on your caliber. The author of that piece has dubbed his rifle the ".25 pronghorn". Some good loading data there too. Also +1 on what oldbear said. I shoot a 257 WBY and a buddy of mine has a 25/300WSM. They are both great quarter-bores. Good luck and good shooting....
God Bless

Raptor Stalker by
Kirby Allen APS
Reply With Quote
Unread 12-18-2006, 07:13 PM
Platinum Member
Join Date: Jul 2002
Posts: 2,855
Re: 25/300 Win Mag Dies

I reload for a friends 25-300Win mag hte dies are Redding with the bushings I'll have to dig them out to find the part numbers.
Its a great round 4000fpsis doable with a 28" barrel and Lapua brass.
the 115 Ballistic tips are great on deer way out their.
Si Vis Pacem Parabellum
Molon Labe
Reply With Quote


Thread Tools
Display Modes

Similar Threads for: 25/300 Win Mag Dies
Thread Thread Starter Forum Replies Last Post
lee collet dies/rcbs dies/foster bonanza dies/who's dies are best? 30-06 boy Reloading 57 10-28-2012 09:22 PM
338 lapua brass, 30 cal bergers, 223 wssm dies, 308 dies jacack Reloading Equipment and Components 5 12-06-2010 10:26 PM
Want to trade my RCBS 338WM like new dies for 7mmRemMag dies sambo3006 Guns For Sale 4 08-09-2010 04:37 PM
Redding type s bushing dies VS FL Resizing dies Cruizin Reloading 0 12-09-2008 01:09 PM
redding bushing dies and seating dies 4ked Horn Reloading 1 06-22-2005 07:41 AM

All times are GMT -5. The time now is 10:30 AM.

All content ©2010-2015 Long Range Hunting, LLC