I tried full power and plinker loads with H-T using low antimony (~50/50 COWW/Pure) and didn't get the accuracy. Leadman used lino and got close. We both HT to get hardness to take pressure, H-T cooking seems to kill the BHN. I'm starting to think that the gunk I got in the bbl was actually gas cut coating. From pressure curves from Larry G, I was running close to 35k psi. It works OK with PC. The 308 is close to 45K psi and works good with PC.So far, Hi-Tek has not equaled the performance of lubes in rifle bullets. I had high hopes it would prove out but at this point it seems PC has more potential. I have followed the work that popper has done and it looks like he has abandoned trying to get full power loads from his .30/30 using Hi-Tek. I am not saying one mans experience is all I am basing this on - but he has done (or at least posted) the most on rifles.