I normally use LR Mag primers in my 300 Win Mag. I saw some loads that called for regular large rifle primers. How much difference between the two primers. I know the Mag primers have a hotter ignition but would the regular rifle primers work as well?
Please advise
Posts: 251 | Location: pa | Registered: 11 February 2005
as well? I would be cautious if switching from regular to mag primers if I was at a maximun load. i will switch sometime with slower powders to a mag primer. it will change the pressure curve and tweek out a little more velosity and accuracy will also be affected.
Posts: 2134 | Location: Ohio | Registered: 26 June 2000
In my situation, I would be switching from Mag primers to regular rifle primers using the same powder and amount. I have a ton of regular primers I want to use up.
Posts: 251 | Location: pa | Registered: 11 February 2005
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Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003
Man that report is great. This stuff is why I keep reading. Thanks.
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Posts: 240 | Location: texas | Registered: 05 March 2005
I have shot the .300 Winny for 30 years and the Fed 210M primer is all I will use. When I go to the Fed 215M primer I blow my group from one holers to one inch. Good shooting.
phurley
Posts: 2368 | Location: KY | Registered: 22 September 2004
My reloading manual says they used regular LR primers for the 300WM, NOT magnum primers. peter.
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Based on a recent article in one of my gun rags, it's more than just an issue of mangnum primer or not; the brand of primer makes a difference. According to that article some standard primers are "hotter" than a magnum primer of a different brand. Sorry about lack of specifics, as I was maginally interested. I tend to use one brand, CCI, because of availability and results.
roger
Good shooting.
