thought I'd share a little info on vintage rolled brass foil martini cartridges. Yes, you heard right, the cartridges the British issued with the Martini Henry Mk1, MkII and MkIII rifles throughout their front line service life were not drawn brass. The were a rolled brass foil cartridge with a blued steel base plug. Some colonies, late in the service life of the Martini (well after it was relegated to a second class arm in the UK), did eventually adopt a drawn brass cartridge, but they are very uncommon in military loadings. Of course, all the commercial loadings available for these guns, mostly made available once they hit the surplus market from brands like Dominion and Kynoch, were drawn brass.
Here's a little photo to help explain what I'm talking about:
here you see, from BOTTOM to TOP:
1) a once-fired and reloaded(!) british issue cartridge from the 1870's. (more on that later)
2) an unfired issue cartridge from the 1870's (note the paper patch has disintegrated above the case mouth, but it once had one)
3) a very late issue (Canadian) drawn brass military cartridge (note most of the paper patch is disintegrated, but it also had one).
None of these has a headstamp. That wasn't done back then. Rounds were identified only by an ink stamp of the brown paper cartridge wrapper. But that does not mean they are not marked. Every rolled brass cartridge steel base had a brass primer liner pressed into it, and these were all broad arrow marked (see photo - sorry it's a bit blurry):
Also, British issue bullets were each individually broad-arrow marked on the bullet heel (!). When these were made, Canada, India, etc. all marked their ammo the same way - they were just British, even though Canada had technically become an independent commonwealth country a few years earlier in 1867. Of note, the broad arrow is cast in and is PROUD - not stamped into the bullet base. The base is also slightly convex to make room for the twister paper patch base, so the whole thing could sit flat against a waxed fiber wad card in the cartridge neck.
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I've pulled the bullets from both drawn and rolled cartridges and the bullets are identical. They all weigh 480 grains and have two cannelures where the case mouths are crimped to the bullet (the drawn case mouth tip is crimped into a cannelure, vice the rolled brass that are crimped below the case mouth).
Here you can see the cannelures, the fiber wad in the casing, and what remains of the paper patch base on an original rolled brass round:
Now for the reloaded round...
I fired a few of these 1870's rolled bras rounds. They all functioned like new, even though some had rusty bases and pretty tarnished up casings. They even shot well and grouped decently at 100 yards (!). While I usually use either modern Jamieson cases, used dominion cases, or formed CBC 24 gauge brass cases, I thought it would be interesting to see of the fire formed rolled cases could be successfully reloaded and re-used. It turns out they can - and they work reasonably well, even for reloads. It's not easy though...
For starters, they are boxer primed, but not like a modern boxer primer. The original primers are 0.140" longer than modern ones, so the primer pockets are WAY too deep to use a modern primer without modification. I had to machine a brass insert 0.140" long by .140" wide and with a hole drilled through it the same diameter as the flash hole and then friction press it into the original primer pocket to take up the extra pocket length so a new primer would sit flush. This was done on the lathe.
Next, they can only take small pistol primers. Totally OK if using real black powder, but if you wanted to use black powder substitute, you'd need to find magnum small pistol primers, I think, for more reliable ignition.
In case anyone cares, I'm handloading a cast 440gn paper patched bullet for these. wheel weight alloy, .450" unpatched and .466" patched. They seem to shoot well in my MkIII. I'm also loading 70gns of Goex FFG, kapok topped, waxed cardboard wad, 1/4" beeswax and crisco lube cookie, another wad card, and the bullet. It's a little milder than the service round. The service loads (for rifles, not carbines) was a 480 gr bullet made of an alloy of 1 part tin and 12 parts lead, 85 gr RFG2 blackpowder, muzzle velocity of 1,300 to 1,350 ft/s.
Obviously, you can;t really full length size wrapped casings, so I just press the bullets into the reloads, - they are a finger pressure friction fit and are held in OK. I re-use these only in the gun that fired them originally - still, a fun project.