View Single Post
Old October 24, 2012, 03:57 PM   #5
Unclenick
Staff
 
Join Date: March 4, 2005
Location: Ohio
Posts: 21,022
Prof Young,

There are different approaches to making a primer magnum. Some make it burn hotter and faster by just increasing the amount of priming mix. Others change the mix to add fuel components so it makes more gas for pressurizing a large case, but actually has lower brissance. The WLP primers may be of the latter sort, staying gentle enough for target loads, but making enough gas and flame for magnum loads. As near as I could tell when I used them about 20 years ago in the .45 ACP for target loads, Winchester WLP's presented no significant performance change over my more usual Federal 150's. I notice they've not made a standard/magnum combo primer like that in any other size, so it seems like it's something that only works out for them in the Large Pistol format with their priming mix.

Read this primer on primers.
__________________
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member and Golden Eagle

Last edited by Unclenick; September 13, 2013 at 10:56 AM.
Unclenick is online now  
 
Page generated in 0.03700 seconds with 8 queries