Long Range Hunting Online Magazine

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

Reloading Berger Bullets


270 and 7mm Wildcats Sub sonic

LinkBack Thread Tools Display Modes
Unread 11-18-2006, 02:14 AM
Gold Member
Join Date: Sep 2005
Posts: 748
Re: 270 and 7mm Wildcats Sub sonic

Hi d-a i think the largest projectile you can use in a BR case is .375 but the 358 is a more practicle size for the largest. You cant go to 50 cal as the base of the case is only .470 so even a 458 projectile will not fit. The larger sub sonic rounds are usualy based on larger cases like the 460WBY or 500 Jeferies. the 458 mag can be used to make up a 475 but that is the MAx for the standard belted case and the ultramag can not go over 458 Max.

I just have to get a good detachable mag for the BR case that is light enough for my purpose the main thing is that it will feed and extract reliably. I have heard that a Sako type extractor makes a large diference in the ejection of BR cases in the Rem Action. The only problem with using the 6.8 Case at its length is the projectiles may be to long to feed through a mag when loaded to their shortest length aand if i shorten the case to much it may not eject well.

Is their any one with a 221 fireball or 300 whisper how well do they eject? what about a 7mm/221 or 270/221 would it have enough capacity to launch a 200gr projectile in 7mm or 270 with the 195gr Wildcat?

Cheers Bill
Reply With Quote

Unread 11-18-2006, 05:14 PM
Gold Member
Join Date: Feb 2005
Posts: 628
Re: 270 and 7mm Wildcats Sub sonic


I think you are right, the 50 wisper i saw was off a wssm case. the size of the bullet made the case look like a br case.

as far as case capacity you only need @ 15 grains capacity to make the heaviest bullets leave sub sonic

Reply With Quote


Thread Tools
Display Modes

Similar Threads for: 270 and 7mm Wildcats Sub sonic
Thread Thread Starter Forum Replies Last Post
Sub-sonic .30 cal options huntokanogan Rifles, Bullets, Barrels & Ballistics 11 10-13-2011 04:10 AM
Sub-Sonic 223??? ShooterMedic Reloading 0 02-21-2010 01:09 PM
Sub Sonic .223? shorty Reloading 5 10-07-2007 12:27 AM
sub or super sonic? A Papworth Rimfire and Airguns 8 05-12-2007 12:36 PM
"Super-sonic" question... JonathanLarson Rifles, Bullets, Barrels & Ballistics 11 01-06-2005 05:44 PM

All times are GMT -5. The time now is 05:45 PM.

All content ©2010-2015 Long Range Hunting, LLC