I did a test today with alloy's
specifically water quenched w/w and air cooled
I used a 300 gr Accurate Molds p/b with a charge
of 17.0 gr of alliant 2400and fed. 150 caps..... distance of 50 yds.
I found in my particular gun ( S.S Ruger Bisley 45 colt 5.5"barrel)
that accuracy was better with the air cooled boolits
now this was the first test and in my gun
your testing and circumstances may be different
I just found it interesting