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Cci magnum primers v standard
Posted: Mon Jul 11, 2016 11:17 am
by SuperV
Ok for a long time I was using cci 400 in my Palma brass. Then I went to cci 450 magnum. Question I have had anyone done a test to see how much of a change in velocity the 450 gives.
Re: Cci magnum primers v standard
Posted: Mon Jul 11, 2016 11:41 am
by jasmay
Pico,
The velocity change will vary from load to load, from all my primer tests I have seen that magnum primers in palma brass result in higher SD ES figures, I currently run federal 205GMM with my current load, but have found the bog standard 205's work better with some powders.
Re: Cci magnum primers v standard
Posted: Mon Jul 11, 2016 9:35 pm
by RAVEN
Magnum primer doesn't necessary mean more power(velocity) I can just refer to it has a thicker cup
There has been some great articles on 6Br.com in the past
RB
Re: Cci magnum primers v standard
Posted: Mon Jul 11, 2016 11:49 pm
by Brad Y
On accurateshooter some have found some batches of BR4's were hotter than 450's. From memory the rem 7.5 was also shown as producing a larger reaction than the 450. Never had an issue with 450's or BR4's in any BR or Palma case application.