Time to assemble some loads for my S&W Model 58.”, .41 Mag. This has a 4” bull barrel and fixed sights.
The bullet is from a Hensley & Gibbs 220-grain Keith type 4-cavity mold.
There is about a 3/4- pound of 300MP on the shelf that should be given a try. I’ve been told that MP stands for Magnum Pistol. However, with a plain base cast bullet and zero belief that “velocity is king”, I’m looking for a reasonable, not a “magnumized” powder charge.
Thanks in advance!
Tom
Attached Files
Sorry Tom. I've used a boat load of other powders in my 41s but not 300MP. I notice that Alliant does not list the 41 for this powder. Jeez.
With rifle in hand, I confidently go forth into the darkness.
Attached Files
On the burn rate charts, it's comparable to H110 and 296 (thereabouts) so a lighter charge of the stuff is probably not a real good idea. Pedal to the metal is the way to go I figure. Did you find any Alliant load data for the stuff in 41 Magnum?
With rifle in hand, I confidently go forth into the darkness.
Attached Files
I've used the powder in both the 38-55 and 30-06 light loads with good success and would think the same process would work on light revolver loads. There is no data published that I know of so go at your own discretion, good luck.
Dale Flinchum
Attached Files
There is a reprint of a 2011 Handloader magazine article on the interweb, discussing 300 MP in a few revolver loads, including the .41.
Unfortunately there is more interest in muzzle velocity than accuracy. Useless.
Several years ago I did run across the use of .38-55 rifle loads using 300 MP. This was on the ASSRA forum. The accuracy was pretty impressive. There was a suggestion that magnum rifle primers should be used. Not sure how that relates to a revolver.
Tom
Attached Files
Take a look on Alliant Powders website I would think they would have data on there using 300 MP for the 41 magnum. From what I have heard from a reloader who uses 300 MP it doesn’t require a magnum pistol primer.
Fred H.
Attached Files
I checked the Alliant authored sites and no .41 info.
There is a Handloader article re-print that does include .41 info. Brian Pearce is the writer in this Oct.-Nov. 2011 article.
My reference for magnum primers was based on a RIFLE load used in a 200-yard BR match with cast bullets. The writer was very emphatic that the magnum primers be used.
Seems like an exercise in futility unless I get into “experimenting” a bit.
Tom
Attached Files
Ed Harris
12
Idahocaster
7
trapdoor4570
6
Aaron
5
Lucky1
3
pat i
3
Proneshooter2
2
CajunRebel
2
gnoahhh
2
beagle6
2
