Remington 9 1/2M (MAGNUM) PRIMERS

[tbrice23]

Can anyone measure the outside diameter of a 9 1/2M magnum primer?
I'm interested in buying some but I found a primer chart that concerns me about the O.D.

Also, are the primer cups harder / thicker than regular LR primers?
Further, is anyone using these as their primary Magnum primer? Lastly, how they compare in braisence (hotness) with other Mag primers?

Thanks guys.

 

[Rich Coyle]

I measured two: .2245", .2240"

 

[tbrice23]

I measured two: .2245", .2240"

That is too big, do you mean .212" ??

 

[FEENIX]

I got .211(1), .210(8), .209(1) = AVG of .210"

 

[tbrice23]

Thanks Feenix, I believe you prefer these in one of your rifles (300wsm???)

Do you feel it is a lot easier to seat these compared to say 215 or 250 ?

 

[FEENIX]

Thanks Feenix, I believe you prefer these in one of your rifles (300wsm???)

Do you feel it is a lot easier to seat these compared to say 215 or 250 ?

You are correct >>> https://forums.gunbroker.com/topic.asp?TOPIC_ID=660324

I have to be honest, I cannot tell which ones are easier to seat. CCI250 is still my go to magnum primer followed by 215M, WLRM, and then 9 1/2M.

 

[Rich Coyle]

That is too big, do you mean .212" ??

You caught me. I should have put on my glasses for close work.

 

[tbrice23]

You caught me. I should have put on my glasses for close work.

Ha ha, I hear ya.

Thanks guys.

 

[just country]

morning, Feenix, question, why due u prefer CCI
250 over Fed. 215's? curious. justme gbot tum

 

[FEENIX]

morning, Feenix, question, why due u prefer CCI
250 over Fed. 215's? curious. justme gbot tum

Perhaps I had more personal success with it than any other primers throughout my reloading experience, nothing else - a personal preference.

 

[bigedp51]

I just bought 300 once fired Lake City 7.62 cases and had to uniform the primer pockets to get the Remington 9 1/2 to seat below flush. I normally uniform my primer pockets and I was hoping the LC cases would have deeper primer pockets and not have to remove as much brass.

I thought this strange because I have a military drawing for the LC 7.62 case. And the drawing shows the primers to be .008 below flush.