Reloder 15 for 38-55?

[fayettefatts]

Have a Winchester Miroku highwall 38-55 on it's way. I never reloaded for this cartridge. I have a good amount of Re15 on hand and would like to know if it can be used in this rifle with cast bullets. How about IMR 4320?

[Shawlerbrook]

My favorite load with cast for my old Marlin 1893 is 9-10 grs. of Unique .

[Jedman]

R 15 is a bit slow for the 38-55 but can be used. I don’t think you can hurt yourself with that powder using up to a full case full. I 4320 is the same. Since you have it , try it !

Jedman

[gewehrfreund]

I agree that there are better powders, but I am also one who tries to use what I have on hand. It's worth a try, but go carefully.
A much better choice is Reloder 7, which is about perfect for all the old 19th century rimmed rounds. It's amazingly versatile and I use it in ALL my centerfire cartridges and I load for a lot of different ones!

[Eddie Southgate]

IMR 3031 is my go to for any of the 38-55/30-30/.32 Winchester special loads , lead or jacketed . Unique, 2400, Red Dot all work well with cast . I have RL 15 but have never tried it for what you are asking about . I use a lot of IMR 4320 but my use is with jacketed bullets in .243 and .32 Remington , 34.5 grains in either one with a 100g bullet in the .243 and a 170 in the .32 Remington. 4320 is discontinued now so I would save it for use in applications where it really shines or trade it for something that would work better in your 38-55 .

My dad shot the Lyman 275248 bullet with H4198 in his Miroku/Winchester 38-55 .

[Kraschenbirn]

...My dad shot the Lyman 275248 bullet with H4198 in his Miroku/Winchester 38-55 .

H4198 is your friend in any 38-55...levergun or Highwall.

Bill

[koger]

The burn rate of R15 is very close to IMR3031, I would try a few and see how it does.