Lucky,
That sound right, an 8 year old Galls (lower-end) IIA stopped a .357sig Cor-Bon 125gr, which is a very hot auto pistol round in my opinion. Vests are not so expensive that I would try to get more than 5 years out of one, plus mine usually smell like swamp balls after a year and a half (Febreze keeps me going). With the conflict in Iraq it is difficult to get working type vests for under 350$ at the moment but it can be done. The cheapo Galls vests are decent enough, they fit about as good as the older (3yrs ago) Second Chance units, I think they are about $300 from Galls.