Armory Sponsor
Posted: 4/14/2010 1:56:15 PM EDT
Just curious what you guys think about these. 2 on the outside are 24.5gr varget 70gr TSX's 2 middle are 24.5gr varget 75gr HPBT's All CCI-400 primers. I have about 50 of these loaded up and they seem a little flat and just wondering if you guys would just shoot the rest and go lower next time or pull them all. I know CCI-400's are thinner than all other primers, maybe I should use something different. Any suggestions would be great.
Close up 
Edit: Can anyone tell me what may be causing these dents? Just shot those 4 this weekend never did it on anything else before. 
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Flat primers can be a sign of high pressure, but it also occurs if primers are not seated slightly below flush.
I was occasionally getting a flattened primer with CCI 41's with mild loads using LC brass. My LC have tighter primer pockets than most other brass I use. That, combined with CCI 41's, makes proper seating difficult with my set-up. |
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Pretty much same experience for me as well. Using same moderate loads (62gr SS107 over 24.5gr of TAC)
1. CCI-400 = appears excessively flat, sign of possible high pressure (almost like your pics) 2. Winchester SR = appears to be at normal pressure 3. CCI-41 = appears to have little space between pocket ridge and primer border (looks to be a lighter load in 23gr range) 4. WOLF .223 (newer batch) =appears to have plenty of space between the pocket ridge and primer border (almost like under load), but wolf primer have unique more round shaped primers. So far my experience has been limited with these (<300rds) so I cant comment too much on these. But they seem to work well, also have slightly tighter fit. *We all take some form of risk everyday, driving to work or even eating at Jack in the Box. But I do not take risk reloading. If these loads makes you feel funny and unsafe inside, back off few tenth of grain and be happy. Do what makes you feel safe, not what others tell you is safe. HTH |
Bleh!! My most accurate 308 loads look like that. Flat primer's can be caused by many thing's beside's too hot a load. Long headspace will flatten primer's in even mild loads for example. Chrono the loads don't exceed book max etc. When your AR's extractor rip's threw the rim and leave's the brass in the chamber And the spent primer falls out of the pocket your too hot ......................................................You do have a Chronograph don't you!
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