Since metal expands with heat and shrinks with cold.. Is the cold bore shot usually higher? My thinking is that the barrel was tighter with first shot making a slight difference in pressure and velocity. Then the last two shots were about the same temperature... Or maybe I just pulled the first shot...
I shot 3 shots at 325 yards with my 308 today. The first shot was about 3 inch high and the last two shots were not... Wish I would have shot one more round just to find out. Thoughts? If cold bore shot is going to be higher, this might need to be taken into account when hunting long range.
Btw, the barrel was dirty and not clean. It had 20 rounds through it before I shot the 3 rounds today.