Trade small rifle magnum primers for small rifle primers

[Warrenoliver]

Want to trade a brick (30 missing) of cci 450 small rifle magnum primers for a brick of small rifle primers. I can't get my 204 ruger to shoot these magnum primers as well as the cci 400's.
Pick up only - no shipping! Not interested in trading for anything but small rifle primers. Trade only, will not sell.
Located in south central Wisconsin, near Madison

 

[Mark M.]

What powder are you using

 

[Warrenoliver]

What powder are you using

H322

 

[Warrenoliver]

TTT

 

[P7M13]

Try SPP if you have them

 

[backwoods83]

If I were closer I'd trade you, but you can try backing off your original load by 2-4 tenths, 450s have a spark about twice as long and a few hundred degrees hotter, so backing off a little can match pressures.

 

[Warrenoliver]

If I were closer I'd trade you, but you can try backing off your original load by 2-4 tenths, 450s have a spark about twice as long and a few hundred degrees hotter, so backing off a little can match pressures.

Thanks. If I can't move them I'll have to try that

 

[19 Badger]

Try SPP if you have them

Wouldn't a SPP be a much thinner cup diameter than a cci 450?

 

[backwoods83]

CCI 500s will blank at about 40k psi, CCI 550s will take about 48-50k psi before they blank, but neither or any other SPP that I'm aware of, will handle full house 204 loads, not exactly a subsonic 300 blk load or 22 hornet.

 

[P7M13]

Wouldn't a SPP be a much thinner cup diameter than a cci 450?

SRP, SRM, SPP, SPM, all same cup dimensions. Some say the metal in the cup is thicker in the magnums. While I haven't measured, I have found the metal thickness varies among manufacturers.
Cannot mix large Pistol with Large Rifle. LR has deeper cup.

 

[19 Badger]

I have never measured this myself either but found this chart interesting in that shows the CCI SRP is definitely thinner than the CCI SRM primer. Trying to track down a chart for pistol primer thickness dimensions.

 

[bullet man]

Easy fix just cut back on the powder charge with the magnum primers one grain or so. I buy thousands of small pistol primers usually magnums because they are cheaper go figure. If I use the same charge it doesn't make any difference with a magnum primer its now a plus p load because the magnums are hotter than the standard primers.

 

[charles bonner]

just opened a box of 5000 and would trade if you were close enough . If you want to make a road trip we can make it happen.

 

[Warrenoliver]

just opened a box of 5000 and would trade if you were close enough . If you want to make a road trip we can make it happen.

Where are you located?