StrangeRanger Posted March 17, 2023 Report Share Posted March 17, 2023 The British subguns of WWII and after had a specially designed chamber that would digest anything resembling a 9mm Para. Does anyone know of a source for a reamer that matches those dimensions as opposed to the standard SAAMI/CIP dimensions? 1 Link to comment Share on other sites More sharing options...
Rekraps Posted March 18, 2023 Report Share Posted March 18, 2023 Good gracious you come up with great questions! I don't even know what that is! Link to comment Share on other sites More sharing options...
StrangeRanger Posted March 18, 2023 Author Report Share Posted March 18, 2023 USGI TSMG's have slightly enlarged chambers for improved reliability just like the Lanchester & Sten so it seems logical that the enlarged chamber might be applicable to other 9mm SMGs as well. Just curious as to whether this has been addressed Link to comment Share on other sites More sharing options...
2ndArmored Posted March 21, 2023 Report Share Posted March 21, 2023 It could be reverse-engineered with a casting. Cerrosafe is a common method. https://www.brownells.com/tools-cleaning/bore-barrel-tools/reamers-cutters/cerrosafe~-chamber-casting-alloy/ Link to comment Share on other sites More sharing options...
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