IMR 4227 Help

[dwayne]

Does anyone have any experience with IMR 4227 in 44 Specials and/or 45 Colts? I usually use Unique in my 44 Special and Clays in the 45 Colt but I am running low on these powders and I can't seem to find any. I do have 4 pounds of 4227 and I've read a few examples of people having decent luck with it. So, I figure I'd better get busy and work up some loads with this powder. I am NOT a "hot rodder" and hardly ever exceed 950 fps. Any help will be appreciated. Thanks in advance.

 

[6gun]

Have you gone to IMR's web site to look up load data for using that powder? if not check them out they will be the best help to you.

 

[WIL TERRY]

IMR4227 DOES EXCELLENT WORK in the 44SPL and 45COLT on the medium to high medium loads with 250gr SWC bullets at 1000 to 1100FPS in either cartridge. It can also deliver excellet accuracy at those speeds with the 259GR SWC Keith bullets.

 

[Rclark]

Yep ... If IMR 4227 was a little less expensive .... and didn't use so much per load ... I'd still be using it in general.

For .45 Colt, I liked 20g under 250g RNFP (983fps) or 255g SWC (1030fps) . I use a CCI-350 magnum primer with this powder.

For .44Special, I liked 17.5g under 240g SWC (1047fps). Again I use CCI-350 magnum primer with this powder.


YMMV of course. Of you will have unburnt granules laying around after firing, but pay them no mind..... Doesn't hurt a thing.

 

[protoolman]

I use it under a 320 gr cast bullet in .45 Colt, but I run them pretty warm at 1340 fps over my chronograph. it is very accurate for me though. I have not tried backing it down yet but plan to.

 

[Bucks Owin]

I use it under a 320 gr cast bullet in .45 Colt, but I run them pretty warm at 1340 fps over my chronograph. it is very accurate for me though. I have not tried backing it down yet but plan to.

A 320 gr @ 1340 fps is beyond "warm" IMHO... :shock:

Something ain't right here... :?

 

[bigboredad]

Oh its not too warm I got 1300 with my 340gr and brass isn't even sticky coming out it jusfalls right out. Now being comfy to shoot that depends on if I've been shooting my .475 first

 

[sixshot]

Brass falling right out isn't necesarily a good indicator. That load is on the warm side in a six shot Ruger with a heavy slug.
20 grs of 4227 & a 250 gr slug is a very common & accurate combination in Ruger 45's.

Dick

 

[Jim Puke]

Brass falling right out isn't necesarily a good indicator. That load is on the warm side in a six shot Ruger with a heavy slug.

Dick

Yep!

 

[claybirds]

Anyone have an idea of how this powder would do in a Ruger 77/44 with a 18.5" barrel, 240 gr XTP.

Looking to tame down the 44 mag for my sons first deer gun, won't be shot any further than 75 yds.

 

[Rclark]

Don't use jacketed, but I'd think 19-20g 4227 should work fine. I tested up to 23g under 240g SWC (1250fps out of 5 1/2" barrel). Starting place any how.

As for the 1340fps load for 320g bullet, Linbaugh got close (aprox) with H-110 in the .45 Colt. From the Dissolving the Myth article . Looks like trying to use 4227 to get to 1300fps is a bit hot pressure-wise to me .

Minimum Loads____________________________Maximum Loads
310 cast, _H-110, 21.5g, 1109 fps, 24,400 CUP, _H-110, 23.5g, 1316 fps, 32,000 CUP
310 cast, H 4227, 21.0g, 1016 fps, 24,900 CUP, H 4227, 22.5g, 1164 fps, 30,000 CUP
310 cast, __2400, 17.0g, 1013 fps ,24,400 CUP, __2400, 19.0g, 1172 fps, 29,400 CUP
310 cast, __HS-6, 12.5g, _994 fps, 25,000 CUP, __HS-6, 13.5g, 1043 fps, 29,800 CUP

THE 7" PRESSURE BARREL USED TO OBTAIN THE ABOVE VELOCITIES AND PRESSURE DATA IS MEASURED FROM THE MUZZLE TO THE BREECH.

 

[bigboredad]

Dick
Your correct it is a warm that is pretty close to hot. I have been looking to fi d the max load for that particular bullet and I don't know about the gun but as far as my hands go it is close enough for me to call max and now I can go back to shooting something a little easier on us.

I've always heard getting sticky brass was a sign of going a tad far. I do appreciate your warning. I kind of like this particular gun and would rather not blow it up. Thanks for the heads up

 

[buck460XVR]

Anyone have an idea of how this powder would do in a Ruger 77/44 with a 18.5" barrel, 240 gr XTP.

Looking to tame down the 44 mag for my sons first deer gun, won't be shot any further than 75 yds.

It will work just fine. I use it all the time for hunting type loads under 240 gr JSPs in my 77/44.

 

[Rick Courtright]

I've always heard getting sticky brass was a sign of going a tad far. I do appreciate your warning. I kind of like this particular gun and would rather not blow it up. Thanks for the heads up

Hi,

IME, sticking brass can be almost as poor an indicator as "flattened" primers. Just one for instance: new, my .357 Bisley would stick brass in factory loads, .38 Spl! Seems the good folks at Ruger substituted a rock for the usual cutting tool they bored the chambers w/, and it took a lot of "smoothing" before the gun "worked right." It's still a touch grumpy w/ loads that just fall out of my GP. And at least one Smith an acquaintance had possessed bright, shiny, but tight, chambers. It, too, would stick "moderate" loads now and then. Don't remember if it was a 686 or 629...

Rick C

 

[claybirds]

Thanks for the help, now on to making some reloads.

 

[protoolman]

My load was recommended to me by the Sierra Tech Line many years back for Ruger Blackhawks only.