IMR 4227 and 10mm recipes?

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Trey Veston

Trey Veston

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Or maybe .45 Colt recipes?

My dad tried to give me an 8lb jug of IMR 4227 for helping him out with some chores. Refused and gave him $100 for it.

Now trying to figure out what it's good for. Heard it was good in .45 Colt and .44 Magnum.

I shoot mostly 10 mm and .40 S&W for handgun, and .308 and .30-06 AI for rifles. .45 Colt is both pistol and rifle.

Found some .45 Colt loads, but nothing for 10 mm.
 
In a 44 magnum case with a light(ish) bullet, you can run out of space for the needed powder pretty easy. It’s very bulky per grain. I have no experience with 4227 in 10mm but there might never be enough room to get enough powder to get 10mm velocities. Maybe 10mm Special?:)

I really like imr4227 in 44MAG. It’s forgiving and can be downloaded, unlike H110.
 
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Trey Veston said:
Or maybe .45 Colt recipes?

My dad tried to give me an 8lb jug of IMR 4227 for helping him out with some chores. Refused and gave him $100 for it.

Now trying to figure out what it's good for. Heard it was good in .45 Colt and .44 Magnum.

I shoot mostly 10 mm and .40 S&W for handgun, and .308 and .30-06 AI for rifles. .45 Colt is both pistol and rifle.

Found some .45 Colt loads, but nothing for 10 mm.
Click to expand...
It’s a very good powder for cast high-power rifle loads, M1 Carbine, longer barrel revolver and lever action rifle/carbine cartridge. Probably one of the best for full power loads in your .45Colts lever gun. It burns in the fast rifle/slow pistol range so it is not a good fit for everything but it’s great for it’s niche.
 
I've just started putting together inexpensive, powder coated, gas checked reduced cast bullet loads for .30-30, .308 Win (I have two 1916 Spanish Mausers that have been rechambered from 7mm to .308 that I want to go easy on) and 7.62x39.

During my research on propellants for these type of loads IMR4227 and Alliant 2400 we're 2 powders that were recommended time and time again (along with Red Dot, 5477, Reloader 7 etc)
I ended up going with 2400 simply because I already had 6lbs on hand but would've gladly tried 4227 because of the numerous positive endorsements of this powder for the type of loads I am going for.

So, if you're interested in reduced cast bullet loads in your .308 or .30-06 you have 8lbs of one of the most recommended powder already in your possession.
 
I love it for pushing 220gr Barry's Spire point bullets in my 300 BO. I tried it in 44 Mag and did not like it as much as 800X but I might go back to it when I run out of 800X.
 
I grabbed a lb of 4227 about a year ago, I had heard of it for magnum revolver loading and it was literally the last and only powder on the shelf at bass pro.

I've loaded some 454 casull with it, accurate loads from the start but soot/ash/unburned kernals , whatever- it left a bunch of crud behind. Easy to clean up but not really worth my time for the result. I do plan to try it in 45-70 though.

What I was told is that it can/may clean up with higher load density. That wasn't my experience, tried a near max load under a 325 grain .452 swc, same thing- accurate, moderate recoil, bunch of stuff left behind.

If I don't find something I like it for before I use up this lb , I won't buy more. I could be way off as I'm not well acquainted with 4227 but it seems like it's alliant 2400s dirtbag half brother. Difference is, I like 2400 quiet a bit.

Do I think there is a use for 4227 in 10mm auto? No. I wouldn't bother. You may find a charge that shoots but I doubt it'll be any good.
Let us know how it works out
 
I've used it in 44 magnum, 300 Blackout subsonic and in my Savage 10MLII. It's a little bulky for 10mm but it might be usable with lighter bullets. I think you would run out of space pretty quickly.
 
I can't imagine being able to get enough in a 10MM case to do any good. It's too slow for standard pressure .45 Colt loads, but may very well work at Ruger Only .45 Colt pressure levels.
 
If I remember correctly it was initially used in rifle for something like the 218 bee or something like that. It works great for reduced cast loads in rifles with no remaining chunks. In my experience with 357 a 6" barrel isn't long enough for good burn. Because it's working so well in 308 I havent tried it in my 357 carbine as i only have a pound left. I may still try it as a data point.
 
AJC1 said:
If I remember correctly it was initially used in rifle for something like the 218 bee or something like that. It works great for reduced cast loads in rifles with no remaining chunks. In my experience with 357 a 6" barrel isn't long enough for good burn. Because it's working so well in 308 I havent tried it in my 357 carbine as i only have a pound left. I may still try it as a data point.
Click to expand...
Sorta yes and sorta no. It depends on a lot of other factors, mostly crimp, primer and bullet weight. A 200gr. Cast Performance WFN-GC over 12gr. with a standard small rifle primer and a heavy roll crimp in the groove will burn pretty close to complete in a 6-1/2 Ruger BH and about the same in a 6" Colt .357. Those revolvers both have very close B/C gaps and that may or may not be a contributing factor, just another data point to consider. In a 10" Contender that's like a .35Rem-class pig/deer load. Very efficient. However, in a 5-1/2" Pietta/EMF Great Western II it's like blowing chunks of pencil lead out the barrel. No Bueno, man! So, yeah, some guns I have seen do really well and some barf up hair balls.
 
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