Looking for .45 Colt chamber insert for MH

[FilmGuy]

Does anyone know where I might obtain one of the .45 long Colt chamber inserts for my .577/.450 Mk IV Martini Henry?

Thanks;

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[browningautorifle]

MCA Sports: Chamber Adapters, Inserts and Cast Bullets, Our Home Page! Try a line to these guys for assistance...

[FilmGuy]

Thanks, Jim - I'll give them a try.

Laurence Johnson