I’ve shot over 200,000 rounds of H&G #68 dry Teflon lubed lead 200 grain SWCs that I paid $22/1000 at about 900 FPS through my now retired IPSC 1911. But I have to warn you, that is through 3 different barrels I had on it😎
But only the first one I retired due to leading...about halfway through m first full season as a “C” class I started getting keyholes, first at about 20 yds then as close as 10...the barrel looked like a smooth bore.😎. One match I absolutely know I bobbled the draw and dropped the first round completely off the target but the RO scored an “A” keyhole as a “double” and I didn’t lose the points.
But the next match I got “caught.” And had to argue “keyhole” to keep from getting penalized for an extra hit. I bought a “Lewis Lead Remover” which kinda worked because it stopped the keyholes at least and the next year I bought a series 70 Gold Cup barrel for $50 from a buddy who bought it and sent it off to make into a 6” comp race gun...funny thing is I never leaded that one with about the same load but with W231 instead of 700x, in fact when I converted it back to 5” I still have that barrel on it.
Because the next year I took second place “C” class and won a 6” Bar-sto barrel and converted it to a comped 6” with an Armson OEG for NRA Action Pistol...again thousands of the same bullet from the same caster and when I converted it BACK to 5” (Action pistol at the time was dominated by ex PPC model 10s with Aimpoints shooting powder puff .38s ...) when I sold the 6” Bar-Sto it still looked brand new...
It now shoots as good as ever, with the second of the three barrels I had in it, and I still have about 1500 of those old lead SWCs left over from the 1980s that I still occasionally shoot through it.
For me the big thing was switching the powder, your results may vary, but while 700x is a great overall handgun powder, W231 was a difference for me...