Interestingly, I did notice that it was really hard to jam rounds into the magazine with the Express trigger group in the gun. I took it out and tried my old Wingmaster trigger group and it was much easier so even with the Remingtons there are differences in the tolerences and dimensions.
Cheers
Not sure what the trigger group would constitute to make it more difficult to load, unless you mean that the lifter was rough, snagging, etc with the one from the Express.



















































