Petrol & Powder
Well-Known Member
Because the 327 case is relatively large (compared to 32 S&W long and H&R Mag), I think the really fast powders like 231 will get "lost" in that casing if you try to download it too much. Of the listed powders, Unique would be my choice. It is a bit slower, and a bit bulkier, than the really fast powders like Bullseye and 231.
When creating 44 “Keith” loads in 44 Special casings, the load is 7.5 grains of Unique; when you use magnum casings the charge weight goes up to about 8.1 grains of Unique to compensate for the greater case volume. I think the same principle will apply when using 327 mag casing to replicate a 32 H&R Mag. Load. Pick a 32 H&R mag load with Unique, plus your bullet and see if the bullet will exit the bore with that charge weight in the bigger 327 mag casing. If you need to bump the charge weight up a little to achieve a “light magnum”, you can.
However, I also agree with Al concerning the noise from 32 caliber revolvers. They get LOUD when you push them fast. I don’t know what it is about the 32 caliber bore but they are all unpleasant when you push them hard. So, if your goal is to make a tamer cartridge utilizing your existing 327 mag casings, you may even need to get below 32 H&R Magnum velocities.
A 32 H&R magnum loaded with 100 bullet traveling in the 900-1000 fps range, may be what you’re really trying to duplicate with a 327 casing.
When creating 44 “Keith” loads in 44 Special casings, the load is 7.5 grains of Unique; when you use magnum casings the charge weight goes up to about 8.1 grains of Unique to compensate for the greater case volume. I think the same principle will apply when using 327 mag casing to replicate a 32 H&R Mag. Load. Pick a 32 H&R mag load with Unique, plus your bullet and see if the bullet will exit the bore with that charge weight in the bigger 327 mag casing. If you need to bump the charge weight up a little to achieve a “light magnum”, you can.
However, I also agree with Al concerning the noise from 32 caliber revolvers. They get LOUD when you push them fast. I don’t know what it is about the 32 caliber bore but they are all unpleasant when you push them hard. So, if your goal is to make a tamer cartridge utilizing your existing 327 mag casings, you may even need to get below 32 H&R Magnum velocities.
A 32 H&R magnum loaded with 100 bullet traveling in the 900-1000 fps range, may be what you’re really trying to duplicate with a 327 casing.