I checked my 1970 Marlin 336 today chambered in 35 Rem. I figured since I'm getting ready for it to shoot cast for the first time I wanted to go through it. Before I polished the trigger group the pull buried my old RCBS manual scale that went about a quarter inch below 72 oz or so. After polishing I got it breaking at three and a half pounds. I thought that was pretty good for a lever gun. I probably don't want it much lighter but it does anybody make straight trigger spring kit for it? Kind of curious what everybody else is trigger brakes from Factory on these. I also went through got a scope mounted up today and use some of the new Hoppe's foaming bore cleaner. It sure isn't like gunslick foam. l let it soak for almost an hour and I still had to push patches through to loosen the powder residue and remove it. The orange foam never turned colors or showed any signs of powder residue. I didn't have any copper following which shocked me. I bought the gun 10 years ago from a buddy who bought it from a pawn shop that I believe original owner never shot the gun. I put Maybe 20 or 30 rounds through it but I figured I would least get a little copper out of it but only had powder fouling. I would assume I have a nice smooth bore on it. I tried some 180 hot cores out of it when i first bought it. I had 7/8", 100 yard groups out it. Hope it shoots just as good with cast.