I made the mistake of buying imr 4227 instead of h4227. I get home realize my mistake, I read up on the powder and it says its the powdwer for mags. the only data I can find is pretty obscure, used with 140 gr ftxin 357, or 210 gr cast lead bullet in the 41 mag. does anyone have some different data for this powder? I normally use 158 gr xtp in 357and 210 gr xtp in the 41 thank you in advance for any help offered.
IMR 4227
- Thread starter jude
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okie44
Single-Sixer
Can find info here. I don't think they offer H4227 anymore. Good luck
http://data.hodgdon.com/main_menu.asp
http://data.hodgdon.com/main_menu.asp
WIL TERRY
Buckeye
THEY ARE THE SAME propellent !
WIL TERRY
Buckeye
XP100 said:
I RAN BOTH IMR4227 and H4227 through the pressure gun in the lab with several handgun cartridges and BOTH velocities and pressures were all but identical. [ EVEN A FOREIGN COPY WAS THE SAME ! ]
THEY ARE MADE BY THE SAME MANUFACTURER TO THE SAME SPECIFICATIONS AND THE ONLY DIFFERENCES ARE THE LOT NUMBERS WHICH ARE ALL IDENTICAL IN PERFORMANCE IN CANISTER PROPELLENTS; that is why they are canister propellents.
protoolman
Service-Sixer
Yup both the same these days. Made by the same company and shipped under both makes.
I looked at the burn rate chart on hodgdons website the two are listed next to each other, just below h110@ win 296, 4 places below aa#9. I don't understand why if they are the same powder they don't have some sort of alert or warning. they have plenty alerts about h110\ win 296. am I reading the burn rate chart correctly, the lower the placement in the chart the faster the burn rate?
Tell, how else could they list is in a table? 
. It's a list of powders.... Does that mean H110 - faster than 296 just because it is listed before 296? Not at all. I think there is some over paranoia going on here .
. As for me, I've been using IMR 4227 in .45 Colt (and tested the powder in other calibers as well) and it works great using the 'H' data given by Taffin. Works for me. YMMV of course.
. It's a list of powders.... Does that mean H110 - faster than 296 just because it is listed before 296? Not at all. I think there is some over paranoia going on here .So, don't listen to the manufacturer or tests that were run in a lab... They could all be wrong I suppose
. As for me, I've been using IMR 4227 in .45 Colt (and tested the powder in other calibers as well) and it works great using the 'H' data given by Taffin. Works for me. YMMV of course.7mmb
Bearcat
The powder that is labeled "IMR 4227" is now made by ADI in Australia. ADI makes Hodgdon's Extreme Extruded and Clays series powders. ADI calls the powder that was sold and labeled by Hodgdon as "H4227" AR2205. When Hodgdon bought IMR they stopped selling AR2205 as "H4227." They now put AR2205 in bottles labeled "IMR 4227" and no longer sell AR2205 in bottles labeled "H4227." IMR 4227 used to be made in Canada and was not the same powder as H4227/AR2205, although the were very similar, served the same applications, and their loading data was very close and overlapped. Newly manufactured IMR 4227 that is labeled as made in Australia is AR2205. If you check Hodgdon's latest data for 357 Magnum RIFLE with the Hornady 158gr XTP they list data for both IMR 4227 and H4227 and all the numbers are identical, the same way as their data for H110/296 and HP38/231 is identical. The Canadian manufactured IMR 4227 is no longer made.
protoolman
Service-Sixer
There 7mmb told you everything you ever needed to know on the subject. Here on the forum there is always someone with the complete info.
sandman228
Single-Sixer
- Joined
- Sep 15, 2011
- Messages
- 191
I just happened to run across 4 lb of h4227 at a local shop recently . it was new old stock had been sitting on his shelf for years for 15$ a pound. ive never used it before but with the way things are today as far as prices and availability I grabbed it up I figured if nothing else I wouldn't need powder for my 410 for a long time and it would free up the 2400 and 296 that I have set aside for 410 reloads . I knew there was some 4227 data in my manuals but when I got it home and looked it was all for imr 4227 not h4227 so I did a little research online and found plenty of people including hogdgon saying it was the same powder. I did load up a few 357 rounds with 10 gr and tried them out in my 686 and my bh convertible the grouping at 25 yrds was great but the load was kinda whimpy and there was allot of unburned powder . I loaded some up a bit hotter but haven't had a chance to try them out yet .
