410 India made Ball tight fit

[jdfoxinc]

I assume these primers are corrosive.

[jdfoxinc]

Double post.

[Outpost75]

I assume these primers are corrosive.

Yes, and Berdan, which misfire or hangfire about 20% of the time unless smacked REALLY hard!

[Apocalypse]

Anyone know where these cartridges might be obtained in Canada?

[Reverend Al]

Anyone know where these cartridges might be obtained in Canada?

I've never seen these for sale up here in Canada so I'm planning to load my own using fire-formed .303 British cases. The tough part was finding .410" round balls. All of the common black powder round ball moulds were undersized (.390" or .395") which would be a "rattling" good fit for sure. I eventually managed to find an RCBS double cavity .410" round ball mould since they produce them as a limited production item from time to time. I plan to duplicate the military loading using some .410" card and fibre wads similar to what they loaded in the arsenal .410 Musket ammo. To fire-form the straight cases from standard .303 British brass I annealed them about 1/2 way down the case, primed them with a standard large rifle primer, charged them with about 8.5 grains of fast shotgun powder (Nitro 100 Trap shotgun powder in my case), added a 1/4 sheet of toilet tissue, then poured in bulk yellow cornmeal up to the case mouth, then added another 1/4 sheet of toilet tissue to hold it all in place. I used a piece of wood dowel to press the toilet tissue wads in place. Point the muzzle straight up in the air (so that the cases don't form lop-sided) and fire-form them. My rifle (shotgun?) is another "back burner" project that I have to get back to again. I formed a bunch of cases for it, but I still haven't fired up the new mould yet to produce the .410" round balls to load in it ...

[jdfoxinc]

Just made an agreement on this forum to purchase an Indian converted Enfield in .410. Really interested in ballistics report.

[jdfoxinc]

Thank you for the research. Now what powder is eq. to cordite?

[Reverend Al]

There were several types of cordite with different burning rates. In the standard .303 ball cartridges that cordite was close to IMR3031 or IMR4064 in burning rate. I'm thinking that this cordite for the .410 Musket cartridges would probably be closer to IMR4227 or Hercules / Alliant 2400. I have both of those powders and was planning to try both of them with conservative starting loads and work up. Now that I have a Labradar chronograph I'll check the loads to see how they compare to the listed military specs. Another ongoing project ...

[jdfoxinc]

Look forward to your report.

[BigMrTong]

I use IMR4227 and the .410 launching wad in my replicas

There were several types of cordite with different burning rates. In the standard .303 ball cartridges that cordite was close to IMR3031 or IMR4064 in burning rate. I'm thinking that this cordite for the .410 Musket cartridges would probably be closer to IMR4227 or Hercules / Alliant 2400. I have both of those powders and was planning to try both of them with conservative starting loads and work up. Now that I have a Labradar chronograph I'll check the loads to see how they compare to the listed military specs. Another ongoing project ...

[Reverend Al]

So you're using IMR4227 and a similar card and fibre wad stack as shown in the military spec sheets? That's what I was thinking too ...

[BigMrTong]

I use this wad ...

https://www.claygame.co.uk/410-guala...hing-wad-pd350

Over IMR4227. Weirdly I found an undersized ball of .39 gave the best Acuracy. I shoot them from an Indian .410 Enfield.

So you're using IMR4227 and a similar card and fibre wad stack as shown in the military spec sheets? That's what I was thinking too ...

[bikerbeans]

This game looks fun, I think I will play too.

BB

[Reverend Al]

I use this wad ...

https://www.claygame.co.uk/410-guala...hing-wad-pd350

Over IMR4227. Weirdly I found an undersized ball of .39 gave the best Acuracy. I shoot them from an Indian .410 Enfield.

LOL ... it'll be just my luck that after all the time and trouble I went through to finally find a double cavity RCBS .410 RB mould that mine will shoot better with a .39 ball too! Interesting looking wad too. I might have a few somewhere on my bench that an avid .410 shotgun shooter gave me? It looks familiar so I'll have to go digging to see if I can find them.

[BigMrTong]

I think it’s those specific launching wads that suite the smaller ball.

[jdfoxinc]

Ballistic Products calls it a slug carrier wad. 0721641 for a 25 pack of wads with balls, 0721641C for 500 pak of just wads.

[BigMrTong]

that's the ones .. interesting to see they come with .380" balls now.

Ballistic Products calls it a slug carrier wad. 0721641 for a 25 pack of wads with balls, 0721641C for 500 pak of just wads.

[jdfoxinc]

MrBigTong, are you using the launching wad in the original brass cartridges or in modern?

Sorry BigMrTong.

[MotelAlpha]

I did fire a couple (6) yesterday, and the biggest gripe is you have to rotate the cartridge a couple of times to get them to go off. They must be made for a heavy striker. Accuracy..none worth mentioning. Will now attempt to remove the primers and fix for shotgun primers since MAGTECH is still back ordered. seem there was a fire at the factory in Brazil.

[jdfoxinc]

What drill bits do you use to convert to 209? I am trying to find an RCBS .410 shot shell sizing die. Then I can use my 22lrreloader.com kit to convert to small rifle primers.