2017年11月30日 · Would anyone care to comment on past ignition issues with CCI 450 or BR4 primers? This is not a gripe thread. I'm more curious than anything. New experience for me: …

2021年9月29日 · The other question frequently asked is the difference between CCI 450's and the BR-4. Many understand the relationship between small rifle and small rifle magnum primers to …

2025年1月15日 · BR-4 primers just seem to be4 better quality controlled CCI-450 primers. CCI says their BR primers are not magnum primers and that's true for large rifle BR-2 primers, but …

2020年6月28日 · The BR-4 gives me the same velocity as the 400. I do get a little lower SD with the BR primers. I tested them in my 556 loads but now use them for my 65CM. I use 8208 for …

2022年1月8日 · I have the BR-4 model and it is the only model from them I have experience with, it has worked well for me with no issues. I have run it on guns from an 8 pound 1 ounce …

2013年2月23日 · Site updates coming Wednesday, 1/29 at 8am CT! The site will be down for routine maintenance on Wednesday, 1/29 starting at 8am CT. The upgrade should be quick, …

2019年7月3日 · CCI BR-4 vs. CCI 450, and the Lapua 6.5 Creedmoor case. Questions about appropriate primers for the new Lapua 6.5 CM brass have come up a lot lately. The other …

2013年2月23日 · The br-4 is a good primer, no doubt. But..... I did a test on these vs cci 450. They are the exact same primer. Same “magnum” cup thickness, exact same mixture. I shot them …

2020年7月31日 · i'm using the SR-5 G2 (larger than the BR). commented in another thread earlier. while it does offer greater height and width, it isn't much taller than my harris/larue …

2015年7月6日 · The BR-4 is a very tough primer. It holds pressure well. I think they charge too much for them, but I used them on a large batch of .223 ammo and they worked very well …