JetMech
posted this
21 September 2010
Canuck Bob wrote: This mystifies me. I'm a trained mechanic and lube is good, too little lube is bad.
It seems self evident that lots of lube helps the high pressure/velocity loads, correct?
Light loads seem to be effected by too much lube, correct?
Could someone educate me on why this works as it does?
Bill Warner wrote: I think too much lube unbalances the bullet, or clogs up the barrel and forces the bullet to “scrape” it out.
Bill and George bvoth have alot more experience that I do, by far. We've had this discussion before and the thinking is that excess lube is on the bullet as it leaves the barrel. The high rotational speed of the bullet flings the now uncontained lube outward, and not necessarily evenly. It's called lube purging. That why many folks have seen increased accuracy by lubing one or two less grooves. I'm still working on my 1903 Springfield but the initial load was 16 gr of 2400 and a Saeco 315 lubed all the way. As I've decreased the lube to the point that only one groove is lubed, groups have tightened up. Still fighting a bedding issue, but that's another story.