An interesting conversation from two opposite ends of the field.
My tuppence worth.....
I have no problem in refinishing the metalwork on an antique rifle if it is going to be a utility gun and used around the farm.
It is common in England to have your sporting gun re-blued or re-stocked, but we talking expensive sporting guns, not surplus army rifles.
For the most part, I leave well alone and do not touch the metal finish in a restoration, if I can help it. Now that being said, if the metalwork is poor and needs to be fixed to get rid of rust and pitting, or if I had to machine or do other work on the metal, I will refinish with an appropriate method. If I do refinish, I try to make the finish match with regards to wear and patina. Enfields were slow rust blued and their small parts were oil blackened.
That is one of the skills of a good restorer. To remove the signs of abuse and neglect, yet leave the gun looking worn for its years.
I flash back to Yorkshire and to me a kid of about ten years old looking at a recruiting booth for the Territorials. They would roll into town once a year with their road show and set up a big display on the market square with trucks and armoured vehicles. They had a table with weapons on display. Touchy feely.
I remember handling the FN SLR rifle, I wanted to grow up to be a soldier and get one so bad. The thing was obviously pulled out of stores for the display. It might even have been DP. But what I remember was the wear in the finish. It was polished from use and most edges and corners were devoid of finish. I can see it in my mind now, the patina was awesome!
Nothing wrong with honest wear in my eyes. An old rifle is allowed to look old.
Now here is a suggestion for something that I do quite often. When I restore a rifle or carbine and the finish is poor, or waiting for refinish, I fix the mechanicals and wood work, then spray bomb paint the rifle black with Tremclad rust paint or similar (ya, call me Bubba!)
This is for two main reasons. One is rust protection. It can take me months or even years before I revisit that restoration project after I get that gun shooting. It could go rusty sitting on the rack, never mind being dragged through the bush. BUT, the paint can be removed with stripper in very short time when need be.
Secondly, painting the thing also lets me see how pretty it will be with a nice even black finish. Sometimes that temporary finish stays on there for years.
Sometimes painting the thing black shows me that it aint right for that rifle with antique looking wood and furniture, just too nice, it looks wrong. That then confirms that I should not reblue to finish the project but to perhaps touch up and restore patina.
And just to stir the pot, if you were restoring an old car, boat or motor cycle that still had original paint, but was faded, rusted or peeling, would you repaint?? No longer original finish! Does that ruin the restoration? Just wondering what opinions on that would be.
Generally, it can be argued that an original antique gun with 10% of original finish, is worth more than it would be if it had 100% refinish. Refinishing devalues a gun by about 50%.
I know that it don't work like that for collectable automobiles.