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Dave R · April 16, 2007, 10:33 PM

I have not used those, but I've used their cousins, the CCI 250 Small Rifle Magnum primers. Speer recommends the magnum primers with H335 powder.

I believe the primers you have are milspec, meaning they're a little harder, and more resistant to slamfires. Which I wouldn't worry about with an AR, anyway.

Have also used Winchester WSR primers, and like them, too. Have not tried Federal.

To answer your question, no need to toss those. I just think you'll get slightly better results next time with CCI 250s or WSRs, just because Speer recommends the magnum primers with that powder. They should give you slightly more consistent ignition (according to Speer's marketing materials.)

Others, feel free to correct me.

April 16, 2007, 10:33 PM	#2
Dave R Senior Member Join Date: January 7, 2000 Location: Idaho Posts: 6,073	I have not used those, but I've used their cousins, the CCI 250 Small Rifle Magnum primers. Speer recommends the magnum primers with H335 powder. I believe the primers you have are milspec, meaning they're a little harder, and more resistant to slamfires. Which I wouldn't worry about with an AR, anyway. Have also used Winchester WSR primers, and like them, too. Have not tried Federal. To answer your question, no need to toss those. I just think you'll get slightly better results next time with CCI 250s or WSRs, just because Speer recommends the magnum primers with that powder. They should give you slightly more consistent ignition (according to Speer's marketing materials.) Others, feel free to correct me. __________________ I am Pro-Rights (on gun issues).