Rob I got to thinking and I don't believe the lot number would tell much except to the Berger folks. Model number is more explanatory but again the Berger folks would know most, I'd call em, here's their link.
http://www.bergerbullets.com/products/all-bullets/
The older match bullets don't come unwrapped so fast they hydraulic on entry like the V-Max on that rockchuck. They do however penetrate a lot better and have done a good job for me on heavier stuff. No drama, just dead.
All that is presupposing your point is to keep the fur, if not the more frangible bullets are probably a bit more forgiving as to shot placement cause they blow big holes.
Let us know what ya come up with
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