500 S&W primer pocket
- Thread starter kestak
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Grumulkin
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You could use a rifle primer pocket uniformer.
Are you SURE you need to make the primer pockets deeper? I use 500 S&W Starline brass with rifle primers with no modification of the primer pockets and with no problems. In fact, I believe Starline brass is made to use with large rifle primers.
Are you SURE you need to make the primer pockets deeper? I use 500 S&W Starline brass with rifle primers with no modification of the primer pockets and with no problems. In fact, I believe Starline brass is made to use with large rifle primers.
Greetings,
The Starline brass does not have any indication it has been made for rifle primers. Moreover, the rifle primer in the pocket hole is flush with the bottom of the brass.
I guess I could shoot one round at a time to avoid mass detonation if all the cylinders were full, but I want to do it right.
With magnum pistol primers, I have a detonation problem with the powder H110 with any bullet.
Thank you
The Starline brass does not have any indication it has been made for rifle primers. Moreover, the rifle primer in the pocket hole is flush with the bottom of the brass.
I guess I could shoot one round at a time to avoid mass detonation if all the cylinders were full, but I want to do it right.
With magnum pistol primers, I have a detonation problem with the powder H110 with any bullet.
Thank you
buck460XVR
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Newer Starline brass for the .500 S&W is made for LR primers. I know some of the old .460 brass was once made for LP untill they realized that LR worked better. What does the headstamp say, *-* or *--*?
RidgwayCO
Member
Use a primer pocket uniformer sized for large rifle. It won't affect the width of the pocket, just the depth. Plus it eliminates the "radius" at the bottom of the pocket that can affect primer seating. Here are some good ones:
http://www.sinclairintl.com/prod_detail_list/Primer-Pocket-Tools
http://www.sinclairintl.com/prod_detail_list/Primer-Pocket-Tools
buck460XVR
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this is from Starline's website.......
The Initial run of 500 S&W Mag cases was built to use large pistol primer per Smith & Wesson and Cor-bon specifications. On July 28, 2003, Smith & Wesson and Cor-bon changed specification of primer pocket to be large rifle. Rifle primers are same diameter as pistol except they are approximately .006" taller. This was done to prevent primer from being pierced by firing pin when loaded with max loads and heavy bullets (bullets over 400 grains). It was determined that hole in primer allowed pressure to damage firing pin and bushing, kind of like a cutting torch and the harder cup of a rifle primer will prevent occurrence. All cases sold by Starline, Inc. after July 28, 2003, will contain a large rifle primer pocket to accept a large rifle primer. Hodgdon Powder has generated load data which recommends using Win. Large Rifle Primers. Click here to view or call 918-251-5640.
Cor-bon has also tested and recommends CCI 250 primers (Magnum Large Rifle). Our new cases will have an "R" after the "Mag" on head stamp to signify rifle pocket. If you have previously purchased 500 cases without "R" on head stamp and wish to modify, you can use a large rifle pocket uniformer to deepen primer pocket to accept large rifle primers by deepening pocket approximately .006". This will not affect integrity of case. For concerns regarding situation contact Smith & Wesson or Cor-bon as they designed case and subsequently changed it.
The Initial run of 500 S&W Mag cases was built to use large pistol primer per Smith & Wesson and Cor-bon specifications. On July 28, 2003, Smith & Wesson and Cor-bon changed specification of primer pocket to be large rifle. Rifle primers are same diameter as pistol except they are approximately .006" taller. This was done to prevent primer from being pierced by firing pin when loaded with max loads and heavy bullets (bullets over 400 grains). It was determined that hole in primer allowed pressure to damage firing pin and bushing, kind of like a cutting torch and the harder cup of a rifle primer will prevent occurrence. All cases sold by Starline, Inc. after July 28, 2003, will contain a large rifle primer pocket to accept a large rifle primer. Hodgdon Powder has generated load data which recommends using Win. Large Rifle Primers. Click here to view or call 918-251-5640.
Cor-bon has also tested and recommends CCI 250 primers (Magnum Large Rifle). Our new cases will have an "R" after the "Mag" on head stamp to signify rifle pocket. If you have previously purchased 500 cases without "R" on head stamp and wish to modify, you can use a large rifle pocket uniformer to deepen primer pocket to accept large rifle primers by deepening pocket approximately .006". This will not affect integrity of case. For concerns regarding situation contact Smith & Wesson or Cor-bon as they designed case and subsequently changed it.
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