This question about the primers comes up every now and then in the sites that I visit. Here is the information that I found by researching it.
My question about the primers came up because the I decided it was time to replace the original 1000 445 GATES brass that I had purchased from Silhouette in Idaho in 1991. I am a casual shooter, I probably only have shot 4000 rounds through my gun since I purchased it new in 1991. I cut the primer pockets then. When the new brass came from Starline I was surprised and confused that they were only cut for large pistol primers. The quest started to find the answer rifle or pistol.
I contacted Hodgden and D.J. Bushman at (580) 362-1003 (from the Dan Wesson site).
This is the answer I got from Hodgden.
Originally, this cartridge was designed for use with rifle primers to better prevent primer deformation. This is still the SAAMi standard today. If you do not use a rifle primer, you should at least use a magnum pistol primer. Mike Daly
When I talked with D.J. Bushman.
He said cut them and use Large Rifle primers. The cartridge was designed for them and only them. He is and has been working with Starline Brass to have them manufactured with the large rifle primer pockets.
I encourage all that shoot the 445 Supermag to go to the Starline Brass web site and fill out a response form on the left letting them know that you want the 445 brass made the way it is supposed to be.
See more about D.J. Bushman.
http://www.hodgdon.com/stories/bushman.htmStarline Brass
http://www.starlinebrass.com/Thank you,
Dave
I also have available in .PDF form the original test article for the 445 Supermag from American Handgunner March/April 1989.
and
John Taffin article Taffin tests the 445 Supermag from American Handgunner September/October 1991 also in .PDF format
e-mail me if interested in a copy
davidcarey@verizon.net