I have a 22-250 Model 700 VTR w/Bell & Carlson medalist stock, Warne rings and bases, and a Bushnell 6500 2.5-16. I have been trying to work up a load for this gun that would shoot better than 1" 5 shot at 100yrds. I have found about 3 that would shoot right at 1". Well today while trying one of the 1" loads against 2 new ones I discovered that the gun shoots much better on a warm barrel. I had 10 shots left with the 52 grain berger target bullets that had previously shot 1" 5 shot so I decided to shoot them all in a row. The first 3 shots were looking like they were going to be about 1" again but then I shot the next 7 and they were about 1/2" left and in a group that measured 0.48". So why would this gun shoot 7 shots at 0.48" on a warm-hot barrel but only shoot a 5 shot 1" on a cool barrel?