I just loader up 458x2 with 42.5gr of the IMR4227 with a 371gr cast Boolit !!! she rips..................Ol Deuce
Do the Best with What you have !
I use it as my primary .44 Mag powder with both 240 grain and 300 grain boolits. It does leave a few granules of partially burned powder in the bore, but it doesn't bother me.
It gives really good performance out of the magnum cartridges; e.g., an honest 1050 fps with the 300 grain boolit from a four-inch Redhawk. It also seems like the recoil is a bit slower than you would experience with the other usual suspects, like H110/W296, AA#9, or 2400.
In short, I like it in my .44 magnums. As a bonus, it's not at the top of everyone's list of powders, so it was much easier to find in stock during the last panic/shortage.
I shot IMR4227 in my Browning 1892 .44 Mag recently. The residue left behind resembled rice hulls. I didn't have any unburned kernels. It was pretty accurate. Not saying it's the best powder for a .44, but it definitely works for me.
I like it well enough I just bought an eight pound jug of it. Try a little more crimp. It will help reduce the residue some find objectionable. I like it much better than H110. IMR4227 doesn't pout when you down load it some. It also doesn't have the same harsh recoil impulse with top end loads that H110 has. IMR4227 and 2400 are my preferred heavy load powders and they light reliably in cold weather and with standard primers. I still use H110 but not nearly as much anymore.
Only left handed guns are interesting!
I have some H-4227 and can't find data for it. Any help would be appreciated.
Motor
Motor,
The old H-4227 powder is the current IMR4227 powder. Just use current IMR4227 data.
Don
NRA Certified Metallic Cartridge Reloading Instructor
NRA Life Member
Here's to resurrecting an old thread. I am enjoying 4227 in my Rossi 16". I am loading an Acme powder coated 250 rnfp with a CCI 350 primer. 21.5 gr of 4227 is a very nice round. I also have a Ubertti in .45 I loaded some Dardas 250 rnfp with 350 primers and 17 grs of 4227. They felt great fell right out of the chambers and primers looked great. I would like to hear some input as to pressures I might be running with the 17 grn. and 18 grn.I also would like to know if there might be an online source to find some of this info. Thanks for all your help.
With 17 or 18gr of 4227 and a 250gr lead bullet, you're looking at a 14k psi (light) load. Here is a link to an article on loading the .45 Colt to various pressure levels: https://www.riflemagazine.com/magazi...246partial.pdf.
Don
NRA Certified Metallic Cartridge Reloading Instructor
NRA Life Member
4227 likes heavy boolits, tight crimps and high pressures. I started using it in my 45 LC Blackhawk but abandoned the powder as it was too “dirty”. When I got a 454 I decided to try it again since there were a lot of published loads for middle of the road velocities. It is now my favorite powder for heavy(ish) boolits. It is clean burning, accurate, manageable recoil, smells great, and is always available.
A typical load is 335 LFN GC over 24.5 gr IMR 4227 for 1200 FPS (chrony) out of a 4 3/4 inch barrel. Pressure estimates by quickload is 26k psi.
I’m thinking about getting a 45 LC cylinder for my 454 (I know I CAN shoot 45 in my 454 but that ring of crud thing just bothers me). When I do, I’ll start working up loads with 4227. With the right boolits and velocity, 4227 is a great powder.
so do you suppose it would also burn cleaner in a 44 mag SBH? and is 26k psi about when it starts to " clean up " ? thanks!-Travis
An armed man in a citizen.
An unarmed man is a subject.
A disarmed man is a slave.
Standard primers, Hmm. I've been using CCI 350 and they work great.
USSR, thanks. This is a fun round to load. This powder 4227 and Tite Group are the two powders I am now using. 4227 fills the brass well and down loads well so I am able to use it in both the Rossi 92 and my Uberti 1873. Thanks for the info.
White Eagle, my Brother. I love black powder, I'm just not sure I want to enjoy the clean up on these guns. I do have a 1860 .44 and a CVS Mountain rifle. Plum brown 32" bbl. double triggers, .50 cal. What a joy to shoot. Smells like victory!
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |