JimTom wrote:You’re considering a Creedmoor Bill?
not right now JimTom but I do see a Short action with an IBI carbon wrapped 6.5 barrel, lightweight Carbon/kevlar composite stock in the future. 6.5 CM, 260 rem
JimTom wrote:You’re considering a Creedmoor Bill?
SCJ429 wrote:They are talking about shooting in subzero temperatures. If Hornady made factory ammo and someone tries shooting it at minus 30, they want it to ignite reliably. I have used Palmer brass for my 243 and never had an issue with BR4 or 450 magnum primers. I never shoot in extremely cold conditions.
Flyer wrote:I use BR4 primers mate. I haven't been able to verify this, but I've been told by a local gunsmith (who's also a national benchrest champion) that BR4 and 450 primers are the same. The only difference is they are batch tested and the most consistent batches are labelled BR4 and the rest are 450. They both have 0.025" thick cups compared to 0.020" for the 400 primers.
I did find this page which lists some very slight differences, but I think 0.0005" difference is within margin-of-error/tolerance, so there's still a good chance they're the same primer: http://www.jamescalhoon.com/primers_and_pressure.php
!
SCJ429 wrote:CCI say that you use the standard data with BR4 primers, which means the charges are the same between 400s and BR4 the difference is only the cup thickness.
https://www.cci-ammunition.com/products ... aspx?id=27