Is anyone out there familiar with the Winchester Model 59? I just recently picked up one at an estate sale. My main question is what loads it can handle and if it can shoot 12 gauge slugs. I ask this because it has an aluminum receiver and a fiberglass barrel. Are the standard 2 3/4 loads a lot more powerful today than in the early 1960's?
You may want to contact Winchester directly about this. Personally I was not aware that this gun existed and did a little research - nothing significant was found relative to your question. However I did see a comment that steel shot should not be used in the gun; but this was not form an authoritative source.
Good luck in your search.
To answer your question, No shells from the 1960's are not more powerful than today (barring any heavyshot magnums and stuff like that). I can't speak to your particular gun, but I doubt that target loads or standard field loads would be a problem. I would not shoot steel, heavyshot, or slugs.
Thanks for the info. It's appreciated. I called Winchester and they said that any 2 3/4 modern shell would be fine, just no steel shot. Now the gunsmith that worked on in said, use only "low brass" shells no steel shot. A family member who previously owned this model years ago said any 2 3/4 non-steel shell would be fine, just don't fire it to often. He said that high brass vs low brass doesn't really mean anything anymore. What did he mean? Is there a certain number I should be looking for on the shells or a threshold?