I have a 1903 Enfield .30-06, made by Eddystone that was sporterized prior to me inheriting it. Even though it wasn't worth much, the gun has a lot of sentimental value to me. This fall I had it parkerized since the blueing was almost completely rubbed off. At that time I also refinished the stock. It had an old Weaver 3-9x40 scope on it with Leupold STD base and rings. The scope was in rough shape and my budget is tight so I got a Redfield 4-12x40. It seems like a decent scope for the money so far.
Now for the problem:
After getting the gun back together I cannot get it to zero. The bullet point of impact is 3" low with the scope's elevation maxed out. I was about to return the Redfield and decided to try the old Weaver again. The POI is still low and I did notice it's elevation was almost maxed out. Before changing anything, the gun shot fine and always held zero. There were a couple of (I'm assuming) shims under the rear of the scope mount when I took it apart. My question is, what can I do to fix the POI? I don't like the idea of shims but I don't want to spend a fortune on the mount. As much sentimental value as the gun has, I just can't spend a bunch more money on it. Any suggestions would be GREATLY appreciated.