38-55 load data needed

[bobcat93]

Can some one give me some load data for the 38-55 using a 320 gr lead cast bullet, around 1200 fps , using smokeless powder..
Thanks
It will be for a new highwall rifle ..not old

 

[John Russell]

335gr cast bullet (#2 alloy)

21gr of 5744 = 1330
22gr of 4198 = 1320
26gr of 3031 = 1300

 

[dickn52]

Shooting cowboy matches?

 

[bobcat93]

No matches..I just purchased a 2016 Winchester high wall 1885 in 38-55 and I'm working up some loads to try out..the only info I could find was in a Lyman load manual for 300 and 335 gr bullets..
These will be the first bullets out of the barrel ..I purchased them from the Buffalo Arms Co.

 

[watercam]

Another source might be the ASSRA Forum. Nothing but single shot aficionados.

 

[JSH]

I would at least slug the throat and the muzzle. Full length wouldn't hurt either.

 

[bobcat93]

Another source might be the ASSRA Forum. Nothing but single shot aficionados.

I'm a forum member at ASSRA not allowed to post load data

 

[bobcat93]

I did slug barrel and throat came out .377", as I can't find load data for the 320 gr bullets.. i picked a charge between the 300gr, and 335 gr load data and dumped it in the case..I'm going to shoot today and see how it goes.. probably not the best way to work up a load for a rifle, but should work.
I had one of the Tec. Guys from Sierra bullets tell me when I can't find a load for a specific bullet wieght start with the bullet load data up from that..so I have a 320 gr. Bullet I could use load data from the 335 gr.
I now realize I should have purchased the 250gr. or the 255gr. Bullets..for the 38-55 cartridge...that package it now on the way but I want to shoot today and all I have are the 320gr.

 

[COLT45SA]

I'm a forum member at ASSRA not allowed to post load data

We don't need the actual load. Bullet weight and powder will get us started.