Browning X Bolt 1 in 9 twist 26”
80 grains H1000

Grouping OK at 100. At 200 and 300 I’m lucky if 1 bullet hits paper.

Could the bullets be heating up and disentegrating? Seems like they should be stable ~3200 fps at 600’ elevation.

Scope and rail are torqued down.

Any ideas or suggestions? I’ve got some 180 Bergers ordered I was hoping to make these Hornadys work with their higher BC.

King you are the man. LOL. Welcome to the fire 😉

With no other info I'd say twist may be to blame...

Some barrels are ok on the edge, some ain't....

KC, I’ve heard of that before; where your bullet turns to dust if it doesn’t hit anything. Nobody knows for certain about the science...🙈😎