Long Range Hunting Online Magazine

Go Back   Long Range Hunting Online Magazine > Hunting > The Basics, Starting Out


7Rem mag necked down or SA 7mm Mag

LinkBack Thread Tools Display Modes
Unread 10-01-2008, 06:50 AM
Gold Member
Join Date: Feb 2008
Location: Utah
Posts: 596
7Rem mag necked down or SA 7mm Mag

Just curious... Has anyone necked down a 7MM Rem Mag to the 6.5mm or is this just the same as the 264 Win mag? also has anyone did the same with one of the SA 7mm mags. Would this be any different than the 6.5x284. I have not put any time in looking up case capacity for this stuff and I probablly should before asking some questions like this but it just popped into my head. Or even more powder burn the 7mm ultra mag down to the 6.5mm or 6mm. Now that would probablly be a smoking hot round but the barrel life would suck. A cyotes worst nightmare.
Reply With Quote

Unread 10-01-2008, 10:11 AM
Silver Member
Join Date: Mar 2008
Location: Kansas City, MO
Posts: 316
Re: 7Rem mag necked down or SA 7mm Mag

sierra's reloading manual says that the 264WM is the same case as the 7RM and 338 WM. i know there r some ppl doing 6.5 wsm's.
Reply With Quote
Unread 10-03-2008, 09:25 AM
Platinum Member
Join Date: Mar 2002
Location: Wyoming
Posts: 2,612
Re: 7Rem mag necked down or SA 7mm Mag

That's right, You are looking at a 264 win mag. All those shortened magnums that came out during the late 50's and into the 60's to fit 30-06 length actions are about the same and you can make brass out of about any of them and interchange including the 257,270 and 7mm wby mags which have just a little longer necks that you have to trim.
Predictions are difficult, especially when they involve the future
Reply With Quote


Thread Tools
Display Modes

Similar Threads for: 7Rem mag necked down or SA 7mm Mag
Thread Thread Starter Forum Replies Last Post
308 brass necked down to 243? tnshooter111 Reloading 1 10-12-2010 10:49 AM
375 Ruger necked down MDP Rifles, Bullets, Barrels & Ballistics 3 12-14-2009 11:35 AM
6.5 rem mag necked up to .30 cal? predator1 Rifles, Bullets, Barrels & Ballistics 3 12-19-2008 08:51 AM
.308 Win. necked down to 25 cal. dbhostler Rifles, Bullets, Barrels & Ballistics 3 02-27-2004 01:35 AM
7mm Rem Mag. necked to 6mm sniper2 Rifles, Bullets, Barrels & Ballistics 2 01-29-2004 04:02 PM

All times are GMT -5. The time now is 02:00 AM.

Powered by vBulletin ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2015 Long Range Hunting, LLC