Silvertips were made by Winchester (only) and, depending on the caliber, could have been a lead core with either all-aluminum jacket or plated copper jacket. They made a slew of ‘em. IIRC, the smallest 38-Spl W-W Silvertip bullet was 85 grains. (For short-barreled revolvers).
A local dealer takes his trade-in ammo and puts it in zip lock bags and sells it at a greatly reduced price.
I bought a large bag of Remington Golden Saber. It shot to the same place as the sights are sighted to in my Brownings.
I have not read anything on them that I recall but they sure look wicked.
I am pretty sure I paid only $10 for maybe 70-80 of them. I do keep the one gun I have ready by my bed loaded with the Golden Sabers.