I used to use IMR & H4227 with Dacron filler with good success in 32-40 38-55 &45-70. Th last few years I have tried to avoid Dacron filler and experimented with other powders with limited success.

I have recently gone back to 4227 & dacron and find it does indeed seem to excell in 45-70 & 40-82 , but I am not seeing many loads listed , and I know that all powder is scarce , but H4227 is especially hard to come by in Canada, but have recently found a couple lbs. of IMR 4227. One supplier up here says he thinks H4227 in not made any more

I am wondering if this demise in popularity is because of its dependency on dacron filler to produce its best results , and Dacron is controversial these days for ringing barrels especially paired with 4227 ? I am using modern barrels and understand that the ringing is limited to old softer antique barrels

Both IMR and H 4227 are fine ball powder and meter well, and I think are almost identical  ?, where as In the duplicate IMR & H powder #'s the IMR version is usually a longer stick, and the H variety is usually smaller, and better metering
Input appreciated

Phil

I have always used 4227 in the smaller cases 4759 larger. Lately due to it's better measuring quality's have gone to 4227 in the 38/55.  45/70 stay with 4759. I think I will try both in my new 40/65 barrel see what works the best.

Never use a wad or filler of any kind.  If you are careful to mount the rifle same way every shot powder position is not an issue.  Avoiding fillers eliminates one potential variable. And good shooting depends on consistent mount anyway.

Have noticed minor changes old 4227 to new different manufacturers labels and packages. No matter when changing from what you had to what you can get best to re-confirm loads.

Boats

I find IMR4227 works in .308 win and .223 Rem and about everything else with cast bullets. .223 is supposed to work with Blue/Red dot and others, I find, so far, 4227 is better. 7 gr and 225415.
It always worked in 45-70, 38-55, 32-40; but SR4759 was more accurate~ in 45-70 and 40-50 Sharps straight etc.
Somehow imr4227 is doing it all now.
joe b.

With a 350 gr cast bullet my standard 45/70 load used to be 22 of 4759 Never used it with heavy bullets.  However way I always set up was load light run up the charges until my bullet printed same sight setting as full charge black powder loads, then left it there.

4759 was and is a Black powder duplicate load not intended to work at high pressure or tweak up and down a few grains looking for the best groups. 

All my serious 45/70 and soon to be 40/65 work is for black powder only matches. Reason for loading with 4759 is easy to shoot practice loads. All I need is consistent elevations.

My use anyway

Boats

Thanks for all replys !!

Phil

Seems like I heard a year or so ago that Hodgdon bought out IMR,  Hodgdon has always produced H4227 which  is supposed to be the same as IMR-4227.  If this is true,  I guess it would make sense to drop the IMR version.  I use 4227 in my 32-20 and 44 mag; sometimes in my M-94 38-55 but prefer 4198 in that rifle.  Used to use 4227 in the 45-70,  but now pretty much stick with black powder in the black powder cases.  If I want to use smokeless I have cast bullet loads for enough to keep me happy.

George

Jack,
IMR is a Canadian company. ADI is Australian and make H4227. Hodgdon Used the IMR name and (I guess because it's better known) and is putting H4227 in the IMR labeled jug. 

Unethical I know but, that is what they are doing. I've stopped buying the current IMR4227 and buy the old stuff at gun shows. I now have at least 8 lb and that will last me a long time.

Frank