BEFORE you use Leverevolution....
make sure you have the right follower in your magazine tube!!! That's where the feeding problem rumors started. I have an 1895M in .450 Marlin and the follower is for standard flat tip rounds, when I was first shooting Leverevolution rounds it functioned flawlessly for the first couple shots then jammed on the last round. The last time the jam was so bad I had to take it to a gunsmith to get the round out. Then I found out that you need a different follower for Leverevolution rounds (the correct one has a dimple in it to compensate for the slight difference in cartridge length the ballistic tip has) since switching it I have had zero problems.
I am not sure if they include the new follower in newer guns, but it will save you some trouble if you check before you have the same problem.