CJF,
I was concerned about all three, but truthfully, I didn't check the bullet and didn't know it was only 185 grains. I thought it would have been 286 grains, which is more or less the standard weight for 9.3x62 and 9.3x74R. When I called up your link, I noted the bullet is intended for the 9.3x62, as a lighter bullet choice for smaller animals. I believe the PPU bullet is .366" dia. and 286gr., it is intended for the 9.3x62 which they also sell. If you also shoot one of the more powerful 9.3s, the PPU bullet is a pretty good buy. Your 9.3x72R is your rifle, not mine, and you can use whatever bullet you want. You and Themauserkid reported tight barrels, but neither showed proof marks or groove diameter. Accordingly, I recommended the Tesco style jacketed bullet or cast bullets, but if the groove diameter is .358-.359" I can recommend 35 Rem. bullets. You might ask Lapua what they think about using the 185-gr. bullet in a 9.3x72R. Their advice is more authoritative than mine and I would be interested in theirs, myself. BTW, if you disregard my advice, it won't hurt my feelings, other people disregard it.
Mike