Picked up my new M1014 Sunday and the first thing I did was read the manual cover to cover. The second thing I did was read it cover to cover again.  Then, following the manual, I disassembled the weapon, cleaned it (found some metal shavings, unexpected) and lubed it, again, according to the manual.  My issue: Since picking it up and cleaning/lubing, I’ve been practicing loading, chambering, etc. but cannot get more than four 2 3/4” Federal shells in the tube. When inserting the fifth