I don't know about any beveling on an oil/lubrication hole but the bronze bushing that is inside the conrod that fits over the crank pin should have a bevel on the side facing the crank. Just like w8ye said.

(I'm guessing that is what Xjet was trying to say - sorry man.)
Hogflyer, if you are worried or think a little scratch or nick in the connecting rod will eventually lead to failure why did you take it apart? If you let it touch anything but silk a mark will be left on it!
That is a good one!

[sm=lol.gif] I have gouges in one of mine from a pair of Klein Needlenose plyers! (Don't ask!

[&:])
Shoot, some people drill lightening holes in their con rods!
Basically, look for the bevel in the bronze bushing, wear/swirl marks from the crank or backplate, carbon residue on the piston from the exhaust gases, wear marks on both piston and liner which match, and the extra play on one side of the wrist pin. Finding one or more of these (providing one suports the other!) will put you right on course!