Well, the board is either fixed, or it's going to run terribly. Cross your fingers and hope for the best. I'm at my technical limit right now.

Bullet size for Martini-Henry

Post Reply
Message
Author
User avatar
nrobertb
Member
Member
Posts: 62
Joined: Sat Jun 03, 2017 11:02 am
Location: NW Lower MI
United States of America

Bullet size for Martini-Henry

#1 Post by nrobertb » Thu Jun 08, 2017 11:28 pm

What diameter bullet do people use in their Martinis for the .577-450 cartridge? Wikipedia says .469 but I would think .458 or maybe ..459. I see that loads from Buffalo Arms use a .460 bullet.

SWIHARTMARK
Member
Member
Posts: 70
Joined: Mon Jun 05, 2017 5:09 pm
Age: 54
Location: DAYTON, OHIO
United States of America

Re: Bullet size for Martini-Henry

#2 Post by SWIHARTMARK » Sat Jun 10, 2017 5:28 pm

I have a MKIV and I read where those are usually oversize. Accordingly, I have a paper patch mold in the .468 diameter range. I'm going to make a crude neck sizer for this as well. I think the standard one is well under those dimensions. My expanded/fire formed cases inner diameters were in the .472 range

I think Nepalese Martini-Henries are in the .459 range according to a friend. I almost got one to use the standard Lee Precision .459 diameter mold with the expanding base.

Best Regards,

Mark

shoggoth80
Member
Member
Posts: 87
Joined: Mon Jun 05, 2017 4:13 am
Location: Seattle-ish, WA
United States of America

Re: Bullet size for Martini-Henry

#3 Post by shoggoth80 » Tue Jun 13, 2017 4:29 am

Slug it. When I had a Gehandra, I'm pretty sure my bore was .458-.459. Really wish I had kept that thing.

garra
Junior Member
Junior Member
Posts: 31
Joined: Thu Jun 08, 2017 7:04 pm
Age: 71
Location: Reno, NV
United States of America

Re: Bullet size for Martini-Henry

#4 Post by garra » Wed Jun 21, 2017 7:01 pm

When I bought my Martini dies, which were made by NDFS in England I found that the neck sizing die just didn't make the neck small enough unless you were going to paper patch. What worked was to buy a Lee neck sizing, decapping die in 458 Winchester and sacrifice it by cutting off a portion from the bottom. Now I can just squeeze the neck a bit tighter so I can use my .458 bullets without paper.

jbrower
Registered User
Registered User
Posts: 7
Joined: Sun Jun 04, 2017 4:07 pm
Location: Swarthmore, PA
United States of America

Re: Bullet size for Martini-Henry

#5 Post by jbrower » Wed Jun 21, 2017 9:00 pm

I have a Mk II and a Mk IV and use bullets cast with the RCBS Mold #57923. The bullets drop at .468 and weigh around 500gns.

Post Reply

Return to “Antique Cartridge and Black Powder Rifles”

Who is online

Users browsing this forum: No registered users and 2 guests