LGS has a 4" SS Sec-Six. Serial # is a 150 prefix which I believe is a low back. Metal is nice but the stock's are worn. Is it worth $375+taxes and NICS? If I buy it I'd clean it up and replace the stocks. What are they worth?
Well, the LGS and I were are to come to terms and I am now the expecting father of a 4" stainless low back. In a couple months it'll be MINE, MINE, ALL MINE!
Now to find a better set of grips for it.
Really no way to ascertain the numbers because Ruger doesn't give out production numbers and the serial numbers are not specific to the different models of the Six series guns.