Dudedog
Contributing Member
In a different thread
I expressed a concern about using unknown (possibly pistol) primers in rifle ammo. The thing that came to mind was possible pierced primers.
I know Rifle primers have thicker cups. (the OP was only talking about maybe 50 primed cases in that thread 100 primers $4)
I said
a response posted was
Pierced primers can mess up bolts. Lots of pictures so I will assume it's true even though it has never happened to me.
also posted
Some overlap in the tolerances but LRs are a little deeper so I think you could run into an issue with high primers using LR in LP, not something I would think would work out well in autoloaders.
another reply
from another site
http://www.jamescalhoon.com/primers_and_pressure.php
--------------------------------------------------------------------------------
Primer cup thickness, dia, cup height
Small Rifle
CCI 400 .020" .1753" .109"
450 .025" .1750" .113"
BR4 .025" .1755" .109"
Federal 200 .019" .1757" .111"
205M .0225" .1744" .1075"
Remington 6 1/2 .020" .1753" .109"
7 1/2 .025" .1752" .110"
Winchester SR .021" .1750" .109"
Large Rifle
CCI 200 .027" .2112" .118"
250 .027" .2113" .118"
Federal 210 .027" .2120" .117"
215 -- -- --
Remington 9 1/2 .027" .2100" .119"
Winchester LR .027" .2114" .121"
Mag .027" .2114" .121"
I seem to remember SP cup thickness being listed as .017
I have been known to be out to lunch on things before but I was curious what others felt on the matter.
I do know SR will work in SP if the gun fires them, but you need to back off the charge a bit. (had some CCI 400s I decided not to use in my AR ammo, any longer even though I had no issues)
It doesn't really matter to me one way or the other I use rifle primers in rifle cases, LP in pistol cases that require a large primer. (.45 APC in my case), and SP in pistol.
My main concern is that the posts might lead others to believe it is a safe practice.
Really isn't a big deal. Using an unknown primer isn't a safety issue
I expressed a concern about using unknown (possibly pistol) primers in rifle ammo. The thing that came to mind was possible pierced primers.
I know Rifle primers have thicker cups. (the OP was only talking about maybe 50 primed cases in that thread 100 primers $4)
I said
A primer failure and a messed up bolt is a lot more $$, possible safety issues as well.
a response posted was
How, pray tell, is a primer failure going to mess up a bolt? Also, please explain what "safety issues" you're imagining if you can think of any.
Pierced primers can mess up bolts. Lots of pictures so I will assume it's true even though it has never happened to me.
also posted
Large rifle primers will fit in large pistol primer pockets and large pistol primers will fit in large rifle primer pockets and they will generally fire dependably. Large rifle primers are a little harder than those for pistols so some handguns won't touch them off dependably but it's not a safety issue.
Some overlap in the tolerances but LRs are a little deeper so I think you could run into an issue with high primers using LR in LP, not something I would think would work out well in autoloaders.
another reply
I bought some Sellier & Bellot "Large Rifle" primers. Right on the box it says for rifle, pistol and revolver cartridges so someone else also thinks there isn't much of a difference between the construction of rifle and pistol primers.
from another site
http://www.jamescalhoon.com/primers_and_pressure.php
--------------------------------------------------------------------------------
Primer cup thickness, dia, cup height
Small Rifle
CCI 400 .020" .1753" .109"
450 .025" .1750" .113"
BR4 .025" .1755" .109"
Federal 200 .019" .1757" .111"
205M .0225" .1744" .1075"
Remington 6 1/2 .020" .1753" .109"
7 1/2 .025" .1752" .110"
Winchester SR .021" .1750" .109"
Large Rifle
CCI 200 .027" .2112" .118"
250 .027" .2113" .118"
Federal 210 .027" .2120" .117"
215 -- -- --
Remington 9 1/2 .027" .2100" .119"
Winchester LR .027" .2114" .121"
Mag .027" .2114" .121"
I seem to remember SP cup thickness being listed as .017
I have been known to be out to lunch on things before but I was curious what others felt on the matter.
I do know SR will work in SP if the gun fires them, but you need to back off the charge a bit. (had some CCI 400s I decided not to use in my AR ammo, any longer even though I had no issues)
It doesn't really matter to me one way or the other I use rifle primers in rifle cases, LP in pistol cases that require a large primer. (.45 APC in my case), and SP in pistol.
My main concern is that the posts might lead others to believe it is a safe practice.
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