I have a 105 grain Lee mold that drops a 106 grain semi wad cutter I would like to use in my Sig P250 9mm. The bullet looks very much like a Lyman 356402 bullet (a 120 grain semi wad cutter), but, it is shorter. For the Lyman 120 gr a W231 load range is 2.9 gr to 4.4 gr. I have developed a load of 3.4 grains of W231. Lyman recommends a maximum OAL of 1.169 for 9mm and an OAL of 1.110 for the 120 gr. which I have problems with. If I set a OAL at 1.110 with the 105 gr it will not chamber, wad cutter part gets caught on the top of the feed ramp. If I set my OAL to 1.050 it feeds fine. Am I correct in thinking the shorter OAL is ok because the bullet is shorter?