I use it in a bunch of pistol caliber cases, but never used it in big bottle neck rifle cartridges.
But, the Lyman Cast Bullet book lists some loads for 30-06 & similar for it. as an example, a 150 gr. GC at 1700-2400 fps.

 

I've used it in 30-06 and 6.5x55, but only with cast bullet loads. I get +/-2" groups at 100 yds. with that powder - loads are in the 1,800 fps. range.
I've never tried it with jacketed bullets - too many better choices.

WYT-P
Skyhunter

 

Skyhunter, I agree completely with you on better choices and I have several other much more suitable to the task. Mainly I have been looking at it for a long time but i am not going to sell or trade it as it can be used. The old manual lists it in 30/30 and 444 with lighter bullets in the 444.

 

I agree with most of the above posts. It's an OK cast bullet powder in the Ought-Six, 303 British, 7.7 Jap and others. It also does well in big straight wall cases from the 357 Magnum and up.

 

I've shot IMR4227 for decades, but only in .44 Mag jacketed bullet hunting loads. There is a lot of lab tested 4227 data, mostly for cast bullet and jacketed midrange loads in bottleneck cartridges. My printed-on-paper IMR Handloader's Guide, dated 2001, lists loads in:
.17 Remington
.22 Hornet
.222 Remington
.222 Remington Mag
.223 Remington
etc etc --- and on down the list all the way to .458 Winchester Mag.

So IMR 4227 is usable in most cartridges. It will give good accuracy but certainly not the highest velocity. If you guys have any specific requests for IMR4227 loads, list them. I'll print them out with bullet used, case used, primer, charge weight, velocity, and chamber pressures. Lab data from IMR Powder, Inc. Plattsburgh, NY 12901.

Rob

 

I've shot IMR4227 for decades, but only in .44 Mag jacketed bullet hunting loads.

I have a 1# can of IMR 4227 for when I can find some Starline 44 mag brass.

Q: what are your thoughts on H110 vs IMR 4227, for a Uberti 1873 rifle with 180 grain XTP bullets?

My thoughts run to 75% of maximum PSI in this modern toggle link rifle.
On paper, the published loads are good performers.
H110 is double base, and perhaps a bit dirtier than single base 4227.

 

I’ve used it in 44, 41 & 22 Hornet. Not one of my standbys. I have unopened cans of IMR powders that date from 80s. It will only go bad if moisture gets in from temp changes once seal is broke. Washer under lid. Inside of can will show rust.

 

One of the best for 300 blackout

 

I use it for the 32.40 with lead bullets.

 

At one time I thought IMR4227 was going to be my 357 powder but the 25-20 happened and I've nine pounds still.
Looks good for cast lead in another 35 caliber my 336A in 35 Remington.

 

4227 is a fairly fast burning powder that doesn't work well in high-speed cartridges. I use it in 30 cal. carbine only. In .357 it takes a whole grain more of 4227 to equal the FPS. of a grain less of 2400 and 2400 burns faster.

 

FWIW

I did a very limited test of 20 year old SR4759...opened but properly stored in climate controlled room entire time.

New SR4759 vs 20 year old SR4759
						Ave	sd
old	1514​	1502​	1540​	1547​	1530​	1,526.6​	18.5​
New	1381​	1410​	1408​	1389​	1390​	1,395.6​	12.7​
						131.0​

The old stuff was "hot", probably due to losing moisture over the years (ie the mass was a higher percentage powder).

I always advise to start well below max when using old powder, for this reason. The old stuff above was almost 10% faster, with all other load parameters identical.

I realize a lot of details are missing here...but that is on purpose!

 

Thanks to all of you, good information above.

 

I sure wish that I had some to try in my 460:S&W.....on a waiting list in a couple of LGS! memtb

 

Be careful with old ( decades old) powder
Powder will degrade overtime and change
I would use in a magnum pistol first before experimenting with for instance 308.
45-70 Loads with IMR 4227 also work well

 

Thanks.
I have all the manuals as well, going back many years, but in PDF format.
The Uberti 1873 is a modern toggle link design, with modern metallurgy. It was mfg about 5 years ago.
I am hopeful the New Marlin is released in 1894CB, 44 mag, and octagonal barrel.

I have an unopened 1# of IMR Red, and an unopened 1# can of Plattsburgh IMR 4227 as well.
IMR Red is already discontinued.
I also have lots of Clays and Trail Boss for CAS use.
My neighbor had buckets of Unique, but gave it to his son-in-law.

Brass is the Unobtanium right now.
Midsouth has 180gr XTP in stock, so I picked up 200 ct before they sold out.

 

I saw the report and tests on the .44 Mag 1873 toggle rifle by Uberti when it came out. They say it's strong. I just can't get into pressuring up that action configuration. I've been shooting .44 Mag since the early 1970's. Any Marlin, Rossi, Miroku Win, old Win 94 or Italian 1892 is a better bet than a toggle. I love Uberti firearms and own several. We shoot them a lot up here. It's tough these days and it may not get any better. Shoot what you can. Err on the side of safety.

 

I had a custom run of .430, 200 grain, Hi-Tek LRNFP, BHN=9 cast for CAS use.
These run at 11,518 PSI, and perfect for CAS.
Clays works well for this use.

I wanted the 1873 for "just because"... so many of the CAS guys use them.
They slick up nice and good fast as hell.
Agree with sticking with low pressure.

I'd still like to have a New Marlin in 44 mag.

 

I have been following the 44 Magnum Uberti Carbine since it came out. No bad reports so far.

I would use a duplicate of the old High Velocity 44-40 factory load in this rifle. A 200 gr Hornady 44 cal XTP bullet at 1600 fps would do it for hunting. For practice, a 200 gr RNFP cast at around 1300 fps should make this rifle last a long time.

IMR4227 will make a fine powder for this rifle.

 

Uberti has discontinued the 1873 in 44 mag.
It is no longer on their web site, nor in in their 2021 catalog.
I am happy to have gotten mine when I did.
They are nowhere to be found today on the major sites.

I4227 is holding a lot of allure for me, both for revolver and handgun cartridge rifles.
It is Single base, so it should be a bit cleaner than the double base types.

H110 has a Max load with the 180 gr XTP bullet that runs about 75% of maximum PSI, and produces a ton of muzzle energy.
I'm told that H110 has a very narrow load range, and doesn't like to run at the low end.
It is also double base, and probably dirtier than 4227.

 

IMR4227 burns dirty. It's a fact of life. It leaves granules in the bore. Always has since its inception in the 1930's. Still, 4227 is a very accurate propellant, dirty bore and all. I run a Federal 155 Large Pistol Magnum primer with my 4227 loads, and a heavy 240 grain jacketed bullet. This cleans up the burn somewhat. If I load a 200 or 225 grain bullet, I'll load Alliant (Hercules) 2400.

For a 240 grain bullet, IMR/Hodgdon starting load is 22 grains and MAX is 24 grains. I've been loading 23.0 grains for years and years. Unmatched accuracy. The Hodgdon website uses the Nosler 240 JHP, but I've loaded 23.0 grains behind every brand of 240 jacketed. Easy extraction, long case life.

If you can get your hands on some during this time of shortage, Accurate Arms #9 is an excellent .44 Mag propellant. Stay away from MAX with #9, load a grain or two under. Standard primer only, #9 goes hot too easily with a Magnum Primer.

This data shot with an 8.875" pistol test barrel. Expect 250-275 more FPS from a 20" Marlin.

 

This is my 32-20 jacketed powder.

 

IMR-4227 has been around for many decades, and the reduced-power data you have is still useful. If you're not comfortable doing that, find someone who has a 32-20 and sell it to them, it's my favorite powder in that round!

 

Several years ago when I started re-loading during the earlier Obama component shortage, my late re-loading mentor convinced me to start with a good supply of A-2400 and Unique. I did find Unique available in small quantities but no A2400 on hand, so the nearest I could find was AA#7. It took me several months to find A-2400, but I also found AA#9 at the same time and both came home. They've been fairly close, for me in the last 10 years, but I have to give the edge to the AA#9 for most of my .357 mag and .44 mag loads. I do still keep and use A-2400 for certain boolits, but AA#9 still fits the bill for most of my needs for the magnum stuff. I actually use AA#2, #5 and #7 for all my other handgun loads (and #7 for cast boolits in the 30-30). I personally never loaded 4227 after discovering it to be pretty high load density - I guess I developed a mental block on my part when considering overall economics. But, I wouldn't turn it down if it was what's available.

jd