IMR 4227

Powder Valley has 4227 in stock , also small pistol primers . You will have sticker shock at the prices .
Powder Valley told me they would no longer have Nobel Sport ( Vectan ) powder . It seems Vihtavuori powder is going away also . It looks like Norma too . I don't know about Shooters World ? Does anyone know really why these foreign powders are going away ? Regards Paul
 
It's designation is a bit of a clue since IMR is for Improved Military Rifle. There were also a couple of SR powders with SR 4759 that was popular for reduced rifle and more recently SR 7625 and 4756 were discontinued that worked well in handgun loads and had faster burn rates. In that regard, SR 4756 might be considered as a "medium" burner.

IMR 4227 can actually be TOO Slow for the .357 Mag in some loads with heavier bullets when compression limits the powder charge. That improves as case volume increase like .41 Mag but probably better for .44 Mag where, depending on the data, bullets heavier than 240 grs. may require a compressed charge.
 
It's designation is a bit of a clue since IMR is for Improved Military Rifle. There were also a couple of SR powders with SR 4759 that was popular for reduced rifle and more recently SR 7625 and 4756 were discontinued that worked well in handgun loads and had faster burn rates. In that regard, SR 4756 might be considered as a "medium" burner.

IMR 4227 can actually be TOO Slow for the .357 Mag in some loads with heavier bullets when compression limits the powder charge. That improves as case volume increase like .41 Mag but probably better for .44 Mag where, depending on the data, bullets heavier than 240 grs. may require a compressed charge.

I called today and my friend had sold it a few days ago. No problem though, I probably have more than enough 2400 to last me a few more years. I'll run out of primers a long time before I run out of powder. If I had known what it was good for when I looked at it I would have bought it, but alas, I just don't know that much about IMR powder and just didn't connect the dots until a few days ago.
 
I started using 4227 back in late 70’s for 357 Mag loads out of a Dan Wesson and Mdl. 19. Also 2400 as read everything Elmer wrote. Have found a good 38 +P load to shoot from Mdl 65 and 66 using Mr. Keith’ 150 grn SWC cast bullet, happy camper.
As for Bass Pro’s prices, it can sit on the shelf as have plenty of what I need to keep on keeping on.
Feel badly for guys starting out in the current situation, hopefully these gougers will feel the pain in a year or so.
 
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