I spoke with an Alliant rep, he told me to use small pistol primers with 2400...not magnum.
j, I do NOT doubt your statement ^^^ at all..What I do wonder is WHY??
Several of the bullet Mfgs. manuals recommend a Mag. primer with 2400 powder. 2400 is not known as a "Pressure Spike" powder, so what goes????....Bill.
Loaded .357 for 40 years, only thing I've used magnum primers in are top power loads with 296/H110/Lil Gun type powders.
All of my loads will be starting loads, no full magnums loads. What happens if a primer is pierced by using the softer Remington 1 1/2 primer?
j, I do NOT doubt your statement ^^^ at all..What I do wonder is WHY??
Several of the bullet Mfgs. manuals recommend a Mag. primer with 2400 powder. 2400 is not known as a "Pressure Spike" powder, so what goes????....Bill.
The answer you seek is about half way down the page. Primer cup thickness (to prevent flow back into the firing pin hole) only.
Apparently not magnum and standard. Post #6.
Remington 1 1/2 vs. 5 1/2 Small Pistol Primers
Maybe I'm underthinking this whole thing, but why agonize so much about which primers to seat when the manuals have their data listed with exactly what primer they used for their loads, usually with the pressure readings thrown in for even more information?
I have a Ruger Blackhawk .45 Colt, and the manuals recommend standard large pistol primers when shooting loads with powder that roughly duplicates factory loads out of it.
When I kick it up and load with H110, the manuals recommend large magnum primers, and that's what I go with.
Never had a single FTF or overpressure load with thousands of my own loads out of this exact gun in all these years since I originally bought it in 1988.
It's not as if magnum primers cost enormously more than standard anyway.