Forcing cone erosion with 4227?
- Thread starter SLT223
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bluetopper
Member
From experience, I've always thought 4227 was just a hair too slow a powder for top performance in 357 and 44 Mag. It is the cat's meow however in my 13" 357 Max Contender and my 500 Mag Handi-Rifle.
As far as forcing cone erosion I've always thought 4227 as a fairly cool burning powder, relatively speaking, and never heard of this happening before with 4227.
As far as forcing cone erosion I've always thought 4227 as a fairly cool burning powder, relatively speaking, and never heard of this happening before with 4227.
Last edited:
Nemo288
Member
I'll echo that opinion. I mainly use 4227 in the 445 supermag.
I have gone retro and use 2400 in the 44 mag now as I also
have switched to cast (mostly with gas checks).
19-20 grains 2400 under a 260 WFNGC shoots better than I ever will.
I'll try to get a picture of the throat of my Encore which has seen hundreds of
high pressure rounds of 4227 and heavy 44 bullets.
My Dan Wesson 7445 has a little frosting in the throat but it shot W680 mostly.
Nothing like the OP's picture.
Update:
Looks like I have no good way to photograph the Encore throat but it
has no visible wear whatsoever.
Here are a couple of the Dan Wesson which does have a little melting of the barrel end.
I don't consider this a problem at this point.
The wear doesn't really enter the forcing cone and the rifling is just getting smooth
I also think one reason for the wear is the very generous chamfer
of the cylinder throat faces.
This will start to spray the gas/powder column out more than a flat face.
I am not sure why they even did this.
===
Nemo
I have gone retro and use 2400 in the 44 mag now as I also
have switched to cast (mostly with gas checks).
19-20 grains 2400 under a 260 WFNGC shoots better than I ever will.
I'll try to get a picture of the throat of my Encore which has seen hundreds of
high pressure rounds of 4227 and heavy 44 bullets.
My Dan Wesson 7445 has a little frosting in the throat but it shot W680 mostly.
Nothing like the OP's picture.
Update:
Looks like I have no good way to photograph the Encore throat but it
has no visible wear whatsoever.
Here are a couple of the Dan Wesson which does have a little melting of the barrel end.
I don't consider this a problem at this point.
The wear doesn't really enter the forcing cone and the rifling is just getting smooth
I also think one reason for the wear is the very generous chamfer
of the cylinder throat faces.
This will start to spray the gas/powder column out more than a flat face.
I am not sure why they even did this.
===
Nemo
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Gearhounds
Member
I too have found that 4227 works very well in my Marlin .44's, and my Rossi .357. Fairly accurate in my 84's, but stunningly so in the 92 20" octagon. Easy 2" group with the factory iron sights from prone off of a backpack with 15 grains under a 158 JSP.
I am glad for the heads up on revolvers, but not so much at your expense, I agree, get yourself a used Rossi 92, and 158 grain JSP's from Zero/Roze in bulk for $107 per 1K shipped.
I am glad for the heads up on revolvers, but not so much at your expense, I agree, get yourself a used Rossi 92, and 158 grain JSP's from Zero/Roze in bulk for $107 per 1K shipped.
Snapping Twig
Member
I use it for Trap Door loads in the 45-70. When I was working up loads, I didn't have, nor could I find any 2400, so I tried 4227 and now I'm sold on it.
For moderate to mid range in the .38/.357 I like W231 or Unique. Max loads... W296 all day long, but that's because I have it. 2400 seems to be best in .357 and 296 is best in things that start with a 4.
For moderate to mid range in the .38/.357 I like W231 or Unique. Max loads... W296 all day long, but that's because I have it. 2400 seems to be best in .357 and 296 is best in things that start with a 4.
Shooter Magaven
Member
I use alot of 4227 for 300 BlK loads for 150gr or heavier bullets. Works great for that.
I have never tried it in a.357 revolver. Not sure if I want to now.
However, I just got a new .357 Rossi 92 carbine at a gun show this weekend and now, judging from all this feedback, I think ill try some 158gr with 4227. Sounds like a
great levergun load.
I have never tried it in a.357 revolver. Not sure if I want to now.
However, I just got a new .357 Rossi 92 carbine at a gun show this weekend and now, judging from all this feedback, I think ill try some 158gr with 4227. Sounds like a
great levergun load.
