The internal length of the jefferson outdoor unit is 2.475 overall and that works out to being able to reliably feed a COAL of 2.450 in testing.
The current production is a stagger feed design instead of the original center feed design that was used on the first generation trigger guard, the change was made to make loading easier because the first generation was stiff to load.
The second generation also has a redesigned trigger bow and a much more positive floor plate latch to reduce the chance of accidental cartridge dumps.
