How accurate is my rifle

[Drifter]

If it was a barrel heat issue, I think the cold-bore flier might be somewhat predictable. But with the issue being copper fouling with bonded bullets (my assumption), the POI of the cold-bore shot seems random and erratic. It can vary, but first shot often strays as much as 2 or 3 moa (or more).

Still testing theories and bullets in different barrels. But at this point, if there is a need for a "premium" hunting bullet, the Barnes TTSX and LRX bullets seem less likely to suffer from the issue compared to bonded lead-core bullets.