Well, a few things to ponder:
1. The 1411 series are long out of production. Not a big deal, but lost bolts or firing pins can be tricky to source. Pouring money into one can be frustrating if you were to need to replace a critical part down the line. Expensive wall hanger.
2. Go though the gun with a fine tooth comb. Make sure bedding is sound, screws are of correct length, trigger crisp and clean, firing pin springs are new ( people miss this all the time ), and the optics are correctly mounted.
3. Test ammo.
4. You can try a tuner with your factory length just to see what happens.
Still shooting poorly and you want to stay with that rifle, pull the barrel and install a Shilen or Lilja. For $300 or so more, you're starting with a new barrel of stainless. They machine better for chambers and tend to have an edge on factory barrels. I favor Shilen 4r for my BR builds.
Personally, I would not invest money in an older wing-safety BR rifle, and I had one myself. I'd get a get a modern 54 action, like a 1900 series, and build from there.