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Old April 6, 2013, 05:22 PM   #4
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Join Date: November 21, 2011
Location: Southern Louisiana
Posts: 1,397
Only problem you'll have using SR instead of SP is if you have installed light springs in your pistol. The SR have thicker cups, and are therefore slightly harder to ignite. Lighter springs can lead to misfires.

They're commonly used in the high pressure cartridges (38 super, 40 s&w, etc) by competitive shooters.

I can't remember the last time I used a SP primer. I bought a bunch of Wolf SR at $12/1000 and have been using them for several years. Probably gone through 20,000 38 special, 357 mag, 9mm, 40 s&w, and 38 super with them with no problems at all.
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