Mag. Primer or Not with Ball Powder ?

[hylander]

I am Trying H-335, Win 748 and BL-C(2).  In my .223
In the Speer Book #13 all these Powders call for a Mag Primer.
Yes, NO,  What say You. :?
What are all You useing ?

[John Traveler]

The rule is that ball type powders have heavy deterrent coatings on them and need magnum primers for reliable ignition, especially in extreme cold weather or large volume cases.

The magnum primer provides a longer, hotter flame duration and almost always gives more complete burning of the charge.

I would follow the reloading manual recommendations for best results.

John

[KN]

I have used both 335 and 748 in my 223's and always used a std winchester small rifle primer. I don't use that load book but 'll double check mine and see what it calls for. I can't imagine needing a mag primer in a 223.  KN

[Donna]

Hylander –

Like John said, “…Need magnum primers for reliable ignition, especially in extreme cold weather or large volume cases”. If I’m using ball powder in moderate weather and in small case volume like .45ACP or smaller regular primers are fine but if I’m using large case volume like .45 LC or 45-70 or similar or larger or plan to go in cold weather than I’ll use magnum primers.

Donna

[Duffy]

Like KN, I use WW SRP in my 223 with no problems. Have worked up loads using mags, reg, different brands and always come back to the WW.  I found the magnums seemed to give more muzzle blast and less consistancy, not always but a enough that I quit using them. Now in the 270 with ball powder the mags were better.

Ryan

[Questor]

I take the ballistician's word as gospel. If ithe recipe says magnum primer, I use magnum primer.

[Rmouleart]

I use mag primers in most my mag revolver applications I live in a cold climate during the hunting seasons and for the most part my loads are compressed or at least near the max load. I have found no problems at all, good clean burns as well,using either W296/H110/ LilGun the only cart I don't use Mag primers is the 454 Casull, I use Rem 6 1/2 and they work good as well. I noticed my Marlin 450 guidegun loves mag primers, powders like H4198/Varget burn so clean and good ignition, most my rifle's is use mag primers , CCI 250 mag/Fed GM210M both are really good primers, I have not ever had a problem using these primers. Never ventured to other type primers, due to the ones mentioned work so well no need to change. Aim small hit small. RAMbo.

[josebd]

i use magnum cci primers in my .223 remington 700 bdl,groups less than half inch,with blc2