I took my Garand out yesterday to run a few rounds thru it to test this idea about long ago reloads cold welding.

47&1/2 gr 4895, 147 gr BT FMJ from CMP, LC 63 brass.
With 8 rounds,no neck splits no sign of over pressure. All shot fine as they did 20+ years ago when I loaded them up. I keep about 500 rounds here for it

IME, you're not likely to notice cold welding unless you decide to pull some bullets. I have pulled bullets from rounds that had cold welded, but none of them from the same lot showed any signs of high pressure or split necks when fired.

+1
I've fired some old 30-06 and 270 from the '50s that seemed normal. When I decided to pull some bullets to use more accurate ones, I had to push them in with a seating die first or the collet just slid off. Some of the 270 made an audible "pop" when I pushed them in a hair. I don't think I'd have gotten any out with one of those plastic hammer inertial type pullers.

Exactly my experience.

So from the replies,I guess that is a non-problem then in regards to shooting them

40,000 plus psi will blow it apart no matter how bad it's stuck.

[quote=hanco]40,000 plus psi will blow it apart no matter how bad it's stuck.[/quote

If a reloader were to spray coat the bullets with Hornady One-Shot lube prior to loading and let it dry on, would that eliminate cold welding down the road?

No. You need something that prevents the sharing of electrons between the case and jacket.