Finally got long-awaited 140gr Partitions for a custom rifle with tight SAAMI dimensions. I have reloaded Barnes 127gr LR, 143 AccuBond LR, Hornady 143gr eld-x and 140 and 156gr Bergers, as well as Sierra 140 gr Gamechanger. No problems with any of these when loaded at recommended COAL, with most being loaded at max SAAMI specs at 2.955 inches. I am using a Redding bushing die to give me a neck "tension" of 0.001 inches. When I loaded the Nosler Partitions, I noticed some resistance on chambering. I had loaded 3 rounds to initiate working up a load with the 140 gr Partitions, and the following 2 rounds met with similar resistance. I measured the brass, and everything was in spec, with the shoulder having been reset 0.002in, and all dimensions within specs. I then chambered a dummy round, and again could feel the resistance on chambering. When this was extracted and measured with an RCBS Precision Mic, the bullet had been pushed about 0.040 into the case. I reduced to COAL to 2.900, and chambering and accuracy was excellent. Looking at the AccuBond, and eld-x, when loaded to the exact COAL, the ogive is definitely further (higher) up the shaft of the bullets. The Partition, with its classic tangent ogive, at least in my rifle, can not be loaded to a COAL of 2.955in without jamming into the lands. As I am running minimal neck tension, fortunately the bullet was easily pushed deeper in the case, but if you are using standard dies, you may end up jamming the bullet into the lands if loaded to the listed recommended COAL for the Partition.