NOTE 1: According to Speer/CCI Technical Services - Both the CCI 550 Small Pistol Magnum and CCI 400 Small Rifle primers are identical in size. Both primers use the same cup metal and share the …

Sep 29, 2024 · With magnum primers, especially when starting to work up a load from scratch I have found that there is no difference, It also simplifies which primer to use without going broke buying a …

Nov 7, 2025 · I have always used CCI Primers in all my loading, with a few Federal Primers when I could not find CCI, my question on this thread, is there a big difference between using BR-2 Primers …

Mar 14, 2021 · I understand the recommendation is to use a LR Magnum primer in the 7 PRC. I’ve also read posts in a few forums of guys using regular large rifle primers in magnum cartridges with no …

Dec 27, 2024 · The primers used are as follows: Federal 205 and 205 M, Remington 7 1/2 Bench Rests, CCI BR 4 and 450 magnum and Winchester WSR. All groups used five shots at 100 yards.

Mar 28, 2016 · I am shooting a Bergara Wilderness Ridge 6.5 PRC. (24" barrel / 1:8 twist) and I am trying to work up some loads. Question? For those that load this caliber; do you load with magnum or …

Apr 18, 2018 · As far as primers go, sometimes there can be a huge difference in accuracy potential. Almost all the rifles I have tried the CCI BR2s in have loved them. My .260AI loves CCI450 and Fed …

Jan 23, 2012 · So wanted to just get this out there…purchased 1000 of the White River Energetics Large Rifle Magnum Primers to hold me over until I could get my hands on some Gold Medal LRM …

Jan 16, 2026 · I'm seeing some good sales on theses small pistol primers. 1000 count down in the $30's.has anyone used these ? When I shoot at our local range I always leave with more brass than I …

Jun 11, 2010 · The indicated K&M accounts for each pocket depth, and each primer height, for each primer to be seated, in each case. Correct primer seating is then anvil contact with pocket bottom …