7.62 Conversion Kit For A Thompson
Posted 06 September 2003 - 07:35 AM
Chi-Com conversion kit
Posted 06 September 2003 - 09:16 PM
Posted 07 September 2003 - 10:22 AM
Whose going to try it in their 28 (or better yet, their Colt 21?)
Posted 07 September 2003 - 10:40 AM
It is a neat historical item, but other than the magazine adapter, the barrel has been sleeved and the magazine modified from other sources, so it is sort of a "made up" kit. Still worth the money based on what is included, though.
Posted 07 September 2003 - 12:57 PM
Posted 07 September 2003 - 10:13 PM
I never thought of it that way. It makes sense when you mention that the Broomhandle Masuer used this cartridge in a pistol.
I was just wondering who was going to be brave enough to try it on their Thompson. I guess when this kit (and other kits) were made, Thompsons were inexpensive ($400 or less in the early eighties.)
Those days are long gone and the $400 Tommys cost $8000 now.
Posted 07 September 2003 - 10:31 PM
On a lot of of the 7.62X25's especially the PPSh's the barrel was made from old Czarest era Mozin-Nagant rifles. They don't slug out at .308 but closer to .312, and I've seen them .317 and .318; and heard rumor of a guy who slugged a sloppy Mozin and wound up shooting 8mm (.323) bullets in it.
Be that as it may, it would have seemed sensable for the Rusians to convert the TSMG to 7.62X25 for lojistic reasons. I just don't see the argument about bullet drop, I doubt many soldiers had it in single and took shots out to the point where it would have mattered. Open bolts are not noted for prescise placement anyway although every one I've ever fired would keep them inside a paper plate.
Posted 09 September 2003 - 04:14 AM
Posted 09 September 2003 - 12:08 PM
Posted 09 September 2003 - 09:10 PM
Posted 12 September 2003 - 10:32 AM
|QUOTE (PhilOhio @ Sep 7 2003, 09:13 PM)|
No way would this round cause any undue strain on the Thompson design. Note that they had to delete the ears of the Blish lock to get enough oomph to make the Thompson run. The 7.63 Mauser delivers a light bullet at high velocity. With .45 ACP, you have a heavy bullet at low velocity. The impulses, which are all that the mechanism "senses", are quite similar. The end result would be that you would have a gun shooting flatter and further out, but with great dispersion (the nature of an SMG) and not much effectiveness. I'm sure the only reason they experimented with it at all was with a view toward ammo standardization.
Remember that the first successful mass produced semiauto pistol (later full auto), the 1896 Mauser Broomhandle, was designed around this cartridge. In strength, it is light years below the Thompson. At the time the Chinese were toying with this Thompson modification, their officers carried hundreds of thousands of Broomhandles, chambered in 7.63 Mauser. Interestingly, they also thought about going in the other direction, and Shansei Arsenal made up a few Broomhandles chambered for the Thompson's .45 ACP round. What a neat beast that one is...a real handful and a real collector's item.
But of course, nobody in his right mind is going to carve up a Thompson for this modification now. Pointless. Just an overpriced, but interesting, collectible, I guess.
Glad you brought up the Shansei Broomhandle in .45. Gives me a reason to post some pics
Despite my better judgement, I picked this one up a month ago. It looks like it just came from the factory.
compared to a C96
pic for scale. most of you should have one of these around
Posted 12 September 2003 - 03:31 PM
and here for the $$ these run.
It is slotted for a stock. I found one but it's $400. I think I'll fit my C96 repro to it.
I have to run catch a plane or I'd offer more comment. It is a very unusual piece.
Posted 14 September 2003 - 03:11 PM
For pricing, IAR does give a discount to C & R FFL holders as well as other FFL dealers.
Posted 27 October 2003 - 09:08 AM
Any questions ?