LD,
You hit the high points well. Let me fill it in. Old classic guns. Generally unworkable stock dimensions, suspect metallurgy, incompatability with steel or tungsten shot, (supposedely), odd or obsolete chamber lengths. The general unreplaceability of some of them if something goes horribly wrong, just for openers. And I do consider buying RST's and/or reloading special feeding. I haven't seen any for sale over the counter, anywhere. I like to be able to shoot whatever's available.

I love my old guns, I just don't get much use out of them. Notice I didn't state I had no use for them! Notice also that I acknowledge that an RBL is exactly what it is, a 3K gun meant to be used and enjoyed. Occasionally I use a 20 Ga 11-87 (EGAD!!) when it makes sense.

Chief