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Thread: Using small pistol primers in low-pressure cast .223 loads?

  1. #21
    Boolit Master
    Join Date
    Sep 2009
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    I bought my first Dillon progressive machine back in 1980, at that time they recommended to not use CCI primers because they were to hard.

  2. #22
    Boolit Master


    dondiego's Avatar
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    Jan 2013
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    Milan, MI
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    Quote Originally Posted by Lloyd Smale View Post
    nope marek is correct and I got it right form the person who answered the phone for cci. Same exact primer in different packaging. Now that was probably 15 years ago and they might have changed but I seriously doubt it. As a matter of fact in this day of budgets and cost cutting id bet not many if any companys are going to produce two different thickness of cups. Federal primes are the easiest to ignite proably from the hardness of the metal they use in there cups. Ive shot fed small rifle primers in my sixguns and they seem as easy to set off as there pistol primers. Now I don't doubt for a minute that a primer like the cci mil spec primers are a bit harder.
    You are saying that marek is correct in that they are different cup thickness but then you go on to say that you got it from a CCI rep that they are the same primer in different packaging??????

  3. #23
    Moderator Emeritus


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    I was thinking it wouldn't be a problem until I read AR. I believe the gas needed to operate would push pressure into a zone where it is unsafe. If you are using a true reduced load of say 4-5 gr pistol powder you may get a better group than with a rifle powder. When I read AR I went to the needs a rifle primer.
    [The Montana Gianni] Front sight and squeeze

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check