I have loaded just about all of my own as well as several other folks ammo for most of my life. However, my experience with the bigger case capacities that are out there nowdays are limited. For the most part past loads in belted cases have always been stoked using the Fed 215 Mag primers and I have had great success with them. I used them mostly due to pouring in what at the time was large amount of the slowest buring powders, wether it was ball or otherwise.
In the past year or so here I have noted continued references to the Fed 215 but did not always "assume" it was the standard or the mag. Now however, I have been loading some of the bigger capacity cases and it has me wondering.I have also noted the use of Russian primers, not necessarily for these type cases but other loads. Are these specificly for competition, are they more consistant, or what is the reasoning behind them in general?
Anyway just had some free time and since this was on my mind figured I would throw it out.
The Federal 215 is a large rifle magnum primer. The 210 is their standard large rifle primer. All I have ever used is Federal. Maybe I'm stuck in a rut and maybe something else is better, but I've had great luck w/the GM210M and the GM215M. These are just their Gold Medal Match primers. I think they just undergo another step or so in quality control.
The Federal GM215 magnum primer has the hottest spark on the market. It was actually designed for the 300/340 Wby Mags.
I use the GM215M Gold Match primers with great results in my 338 RUM and my 280AI and Federal GM210M Gold Match for everything else.
Mike/TX, Folks are correct in their primer description, but even in large charges some powders do better with std 210 or 210M primers. All the RamShot powders are recommended to use std primers because the powder is designed to not be lit off too fast. Most powders over 50-55 gr and most ball powders do better with a mag type primer. Only using a chronograph and changing primers will tell you the whole truth. Then there is the problem of real cold weather which is not usually when we develop our loads. Oh well, another excuse to go out and shoot! [img]/ubbthreads/images/graemlins/smile.gif[/img]
I think a lot of people are confused by the terms 210M and 215M, whether it is completely accurate, or not. The 210M means "match" and when discussing the 215 some use the letter M instead of "Mag". Anyway, that's my theory. But, I do not agree that you absolutely need a magnum primer for 85 grains of powder; maybe in extreme cold weather, and perhaps igniting spherical propellants, but not as a hard and fast rule.
THanks folks. For the most part seeing the 215M designation was pretty much what I was referring to. I appreciate your input and definately will stash it away for future references.
For the most part, just about anywhere we hunt, I can count on one hand the times that it was probably cold enough to actually degredate the loads I was shooting at the time. I actually only know of one time in general that I experienced it, and that was a compressed load of RL-22. Didn't matter though, set that one down and picked up the 25/06 and made the shot. [img]/ubbthreads/images/graemlins/grin.gif[/img]