Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

Mixed Cases

 
LinkBack Thread Tools Display Modes
  #15  
Old 05-07-2006, 05:44 AM
Platinum Member
 
Join Date: Dec 2005
Posts: 2,114
Re: Mixed Cases

DocEd, a 20 fps change in muzzle velocity won't change vertical group impact at 300 yards very much. For example, 6mm 70-gr. HP boattail bullets leaving at 3240 average fps will center about 1/4th inch lower than if they averaged 3260 fps. The two groups would probably overlap quite a bit, too. It would take a rifle-ammo-shooter system capable of producing no worse than 1/8th MOA (3/8ths inch) groups at 300 yards to quickly and easily see the difference.

Consult some ballistics tables to see what a 20 fps change in muzzle velocity will do to vertical group centering for different bullets leaving at different speeds.
Reply With Quote
  #16  
Old 05-07-2006, 11:34 AM
Gold Member
 
Join Date: Nov 2005
Location: Maryland
Posts: 856
Re: Mixed Cases

Now I REALLY understand you. Thanks, DocEd
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Mixed Cases
Thread Thread Starter Forum Replies Last Post
Mixed Box of Optic Deals gr8fuldoug Optics For Sale 5 09-03-2010 10:17 AM
Mixed Roost Buffalobob Nature Photography 2 03-26-2010 05:03 PM
Berger 130 VLD Mixed Results Bulseyetom Rifles, Bullets, Barrels & Ballistics 8 11-01-2009 09:29 AM
Mixed .308 win brass cheap leatherman92 Reloading Equipment and Components 1 09-02-2008 09:15 PM
Mixed #'s of Fired Brass? Eaglet Reloading 3 07-07-2005 11:45 PM


All times are GMT -5. The time now is 11:41 PM.


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