They've been in various closets for 40+ years. The bores look good. Had to order a front sight for the 510 and a rear aperture for the 512.

How do I improve the triggers on these things? They won't break without quite a bit of pressure.

You don't. there aren't any real adjustments on the triggers. I own several of the 5series Remingtons and wouldn't trade them for a truckload of 10-22s. If you ever feel the need to get rid of those, give me a hollar. I'm always looking to buy more.

You don't. there aren't any real adjustments on the triggers. I own several of the 5series Remingtons and wouldn't trade them for a truckload of 10-22s. If you ever feel the need to get rid of those, give me a hollar. I'm always looking to buy more.

I keep hearing people brag on them. These were Pap's, so I'd say I'll keep 'em. :D

Besides adjustments, is there any polishing to be done to the trigger? The 510 had a very fine, strangely even coat of very light surface rust, almost like condensation had formed on it at some point. The bore looks great, though. Lubrication seemed to help the triggers, but I still think there might be some light corrosion.

Also, I ordered a Lyman #3 for the front sight, but it seems there are lots more options. Ever tried any of those globe sights? Do you know the standard height from the factory for the front sight?

I'll have to check on the front sight height. I pulled mine off when I installed scopes on them and put them in my "parts box" You can only marginally polish the trigger assembly. I'd suggest not doing anything to them as parts have become impossible to find. If by some chance you polish too much, it will probably never work again.

On a side note, the 2 my wife and I shoot regularly are from the late 30s and the early 50s. I think my newest one is from 59. I keep my eye out for them and buy them whenever I find them.