H322 and IMR3031 in 30-40 Krag & 303 British

[Naphtali]

Please furnish reasonable loads for 180-220 grain bullets for 30-40 Krag & 303 British for 1898 Krag and No.4 Mk. I and No.4 Mk. I*. I anticipate that loads that are reasonable in these actions will be reasonable in all 303s based upon No.4 actions.

I have no interest in determining how "hot" these actions can loaded. One hundred fifty fps lower velocity will make zero difference upon impact - as far as I am concerned.

I also anticipate that reasonable loads with cast bullets that are gas checked will be reasonable and safe were jacketed bullets substituted.

[Finnmike]

http://castboolits.gunloads.com/showthread.php?196223-4227-under-311284-in-a-Krag

All you need. 16/2400 and a 311299 in my Krag keeps me in the black 100 thru 300 yards. Slug your bore and size to fit the throat.

[Naphtali]

Finmike:

Your reply is interesting but not useful. Loads' purpose is medium game hunting, not target shooting or plinking. I have large quantities of H322 and IMR3031 on hand. I will not buy different powder unless neither powder can be used to create an acceptable load.

[taco650]

Wish I had either of those powders for my SMLE but I don't. My best performers are 16 of Longshot behind a 224gr cast and 40 gr of Reloader 22 behind a HDY 150 j-word. I know Reloader 22 is supposed to be for big capacity magnums but I had some and extrapolated down some data from my reloading manual to get there. Bottom line is study several good sources of data and then start loading. Good luck!

[Naphtali]

I'm trying to avoid extrapolating to create loads if I can. I found a couple of IMR3031 loads for lighter bullets, but H322 is, perhaps, too new of a powder while 30-40 and 303 British are cartridges that must not be reloaded by many.
Wish I had either of those powders for my SMLE but I don't. My best performers are 16 of Longshot behind a 224gr cast and 40 gr of Reloader 22 behind a HDY 150 j-word. I know Reloader 22 is supposed to be for big capacity magnums but I had some and extrapolated down some data from my reloading manual to get there. Bottom line is study several good sources of data and then start loading. Good luck!