After joining the PD in 1972, I really became interested in guns. My in-laws lived in the country and there was a large farm field and woods behind their home, so I bought a small bullet trap to shoot into in the back yard.
Anyway, one day my father-in-law said a guy at work had a Ruger .357 Magnum that he had shot so much, there was no rifling left. He said he would sell the gun for either $75.00 or $100.00. I told my father-in-law to buy it and I would pay him back.
I get the gun and see that it is in almost excellent condition, but, the guy was right, no rifling in the bore.
He had been using .357 Mag factory lead ammo, and the bore was full of lead. It took me a long time to clean out the lead, and when I had it all out, the bore was like new. Sold the gun to some Ruger collectors who ran a gun show several times a year. Wish I had kept it.
Anyway, one day my father-in-law said a guy at work had a Ruger .357 Magnum that he had shot so much, there was no rifling left. He said he would sell the gun for either $75.00 or $100.00. I told my father-in-law to buy it and I would pay him back.
I get the gun and see that it is in almost excellent condition, but, the guy was right, no rifling in the bore.

