Ron, I hear you; respect your opinion. However shooting solids in rifles having modern alloy steel barrels, periodically, would probably not cause anything negative, noticeable, in short term. One must wonder, though, what it will do, negatively in the long term. Certainly the military must have done serious long term studies of such things, as our own military used solids during WWII, in pretty modern alloy steel barrels, .30-06. Fact is, I met a WWII vet here in Oregon, who had been hunting for years with his .30-06 and military surplus solids, until I changed his mind about use of solids for deer/elk. If someone could find old military work done to determine wear on heavily used .30-06 WWII rifles, I am sure we would all find that interesting; shed some light on this issue.