Primer brisance.

[Capona]

Are there any primer hotness charts here?

 

[clcustom1911]

Not that I've ever seen. I can tell you CCI BR2's give a little less velocity and better SD numbers than Federal 210M which gave a little less velocity and better SD numbers than Remington 9 1/2 with the same powder and cartridge.

 

[nn8734]

Not that I've ever seen. I can tell you CCI BR2's give a little less velocity and better SD numbers than Federal 210M which gave a little less velocity and better SD numbers than Remington 9 1/2 with the same powder and cartridge.

My experience is similar except I get a little bit better SD/ES with Fed 210M vs the BR2. MVs are very close between the two. Both are excellent primers and have each in quantity. Remington 9 1/2 gives me less velocity and higher SD relative to the first two...Sr25 in 308. Fed COTS brass...175smk...Re15 and 4064.

 

[culater]

Yes there was a bench rest book I used to have all that information. Federal primers where shown to be the hottest primers

 

[Capona]

Are there any primer hotness charts here?

I thought I saw a chart a couple of years back that had a comparison but I cant locate it anywhere.

 

[nn8734]

Hotter on top, cooler on bottom

 

[Capona]

Thank you!

Hotter on top, cooler on bottom

View attachment 7243591

 

[sinister]

Google "Primer brisance." You should also be considering both heat and "Stirring" or shock value.

Here's a page of photos: https://www.6mmbr.com/primerpix.html

 

[Capona]

Thank you for the correct term to use “brisance”. That gets me loads of information.

Thanks

 

[Rocketmandb]

Google "Primer brisance." You should also be considering both heat and "Stirring" or shock value.

Here's a page of photos: https://www.6mmbr.com/primerpix.html

Very cool link.