Does anybody know when and if Smith and wesson fixed the oversized throat problem in the 25-5 revolvers. I have found one that is, of course, overpriced but I am missing a 45 S&W and I would like to buy it but I am not in the market for a gun that has huge throats either. I know that early on the 25-5 Smith's had throats as large as .458 but they tightened them up. The gun I'm looking at has a 3 letter code in the front of the serial number and I am curious as to whether they had fixed this by the early '80. I have no physical access to the gun or I would break out my set of pin gages. Anybody know for sure?