Anyone using IMR4227 for Colt .45?

[scottz]

I picked up a lb of IMR4227 today with plans for some hunting loads. Anyone have any favorite loads with it? I chose this powder due to the wider range it seems to have. Powders with a narrow range between min and max make me a little nervous.

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[ironhead7544]

I started out reloading the 44 Magnum with IMR4227 many years ago. It was designed for pistol sized cartridges in a rifle. Always worked great for me. Seems to put less wear on brass and guns. The Lyman #47 manual shows loads from a 16 inch barrel that give a 250 gr HP 1200 fps.
Should be a great carbine powder in the 45 Colt.

[scottz]

Thanks. I found some 255gr Keith style SWC with gas checks that should make a good hunting round, but I'm new at this. What effect does the gas check have that I need to be aware of when using load data for bullets without gas checks? Here is what I'm considering
http://www.rimrockbullets.net/catalog/i ... ucts_id=82

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Also, the Hodgdon online data shows large pistol primers but everything I've read says to use magnum primers.

[ironhead7544]

If you are using the standard pressure loads for the 45 Colt then adding a gas check would not increase pressures enough to bother your Rossi. Higher pressure loads could go up a bit. I would drop a max load about 5% to be safe. Really, the only advantage to pushing that bullet over 1100 fps would be a slightly better trajectory.

[runfiverun]

it would keep it sonic to the target.
8 bhn might give some issues [skidding nose slumping] at the higher velocity's even with the g/c on it as a bandaid.
i'd try and opt for about 12 bhn [if that's possible to order] with the higher pressures/velocity's the 4227 will give.

[Doc Holliday]

I have shot quite a few 250 grain bullets out of my Rossi 92 trapper. 24 grains of IMR 4227 and a mag primer was a very accurate load. Excellent hunting round.
4227 leaves lots of kernels though. More you push it cleaner it becomes.Bore snake breech to muzzle easiest way to remove them.
I prefer Power Pistol or 3N37 powders in my three 45 colt rifles

Doc.

[scottz]

Thanks, and this was a cast 250 gr without a gas check?

[scottz]

I can also get a 260 gr. SWC-HP Keith-style with gas check. (12 BHN). That may be a better choice for use with IMR4227 as a hunting load. What would you recommend as a starting point with that powder and this bullet?

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[runfiverun]

i'd just stay with starting jaxketed loads and go with that.
you have to start somewhere.
i'm more a 2400 guy myself with the regular cases.
once i get into the supermag cases, then 4227 starts to do well.