Odd because I cannot replicate accuracy I HAD with H4227. Using IMR MARKED 4227... NOT even close!!
CW
Odd because I cannot replicate accuracy I HAD with H4227. Using IMR MARKED 4227... NOT even close!!
CW
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I did NOT know that 20 grains of IMR4227 and a 250 gr bullet was the 'Hank Williams Jr' load. I started using 20 grs of IMR4227 over a Lyman 454424, .454 WW bullet in 1968 in a Hawes .45 Colt. It was/is a very accurate combination.
Is it (HWjr load) safe for Colts SAA and Ubertis? Thanks
I used 21gr IMR4227 under a Lee 255 LRN to take a doe at 250 yards. I wouldn't recommend that load in Colt SAA's, Uberti's, or any other light revolvers.
Agreed!! Unique (like powders) is all ill shoot outta mine!
CW
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Fire lapping seemed to help some. The bore sure seems polished too. I'm thinking my revolver may need the cylinder/chambers opened???
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This thread is an old one from 2015 that got resurrected. I don't care for relatively light loads of 4227 in the .45 Colt. When I tested 20 and 21 grains of older IMR-4227 with the 45-270-SAA in my 7.5" .45 Colt Redhawk, after firing just 12 rounds the bench I was firing over looked like I'd take a full pepper shaker and dumped it on the bench there was so much unburned powder. The loads were accurate enough, just seemed way too light for the powder. I've never tried H4227, and maybe that works much better. Since I was using the Redhawk, I also tested 24 grains with the same bullet, and of course it cleaned up but was basically a magnum load at that level.
I much prefer either 8 grains of 231 or 10 grains of Power Pistol with a 250-270 grain SWC. Just as accurate, far lower standard deviation, and much, much cleaner.
Yep, 4227 is too slow a powder for light loads.
Don
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Last edited by dakota; 11-23-2019 at 07:31 PM.
USMC E-5 69-72
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I have used 4227 in the past but have decided it's just too slow of a burn rate powder for such a low pressure round and it used way too much powder . The slowest powder I use these days is Blue Dot in 45 Colt using current Alliant load data . Most of my loads use either Red Dot , Ramshot Zip , WSF or Accurate #2 . I recently tried some BE-86 and liked it , but want some more testing before it becomes one of the favorites . OMG , I almost forgot . I tried recently some Ramshot True Blue . That shot very well . I"m very happy with my results using it . I will be keeping that one in stock . I use the original Keith swc , HG 501 , 255gr . I have a 4 cav mold , complete with handles I bought from an estate . Regards, Paul
There still seems to be a "bit" of confusion between these two. Without getting into "used to be" and "now is", the easy way to tell which you have is look at the label on the container. If it's from Australia it is H4227 period. If it's from Canada it is IMR 4227. If it says it's IMR 4227 AND IT'S MADE IN AUSTRALIA it's H4227. The "originals" were close to each other but not the same with H4227 being just a bit slower and said to be one of their extreme powders.
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BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |