S
SNAFU
Member
SNAFU, what RPM was your sled engaging at before the new spring? With the kit installed mine is engaging at about 4300. According to Joe it should about 3800, so I'm trying to figure that out.
NedMark, I checked and the original spring that came with the kit was a Dalton Grey spring 200/330. My engagement RPM was about 4400 on the tack. With the 160/320 spring I am down around 4000 RPM, but I know my tack is reading 150 to 200 RPM high. Lowering the initial spring force really helped to avoid track spin in the powder.