Hi there, arilar. Has hard winter set in yet up in the Northland?
Just waddled from the second-floor computer room down to the basement and miked my skirt. :: Mine run about .065, and weigh between 515 and 518 grains, so I'd say, given mould variances, you certainly have an old style.
Might I suggest that, rather than Break Free, you lube with a little Crisco (baking shortening)? Some folks fill the rings and the base, others just the rings. But a good lube helps prevent fouling, which improves accuracy. Even better, if you have access to beeswax, melt together a 50/50 beeswax/crisco combine, with a teaspoon or so of extra virgin olive oil, for a real good all-weather lube. (some guys like a higher proportion of beeswax to the Crisco. experiment.)
Keep us posted on your results. Most Zouaves with which I am familiar seem to like loads near 37, 42 or 45 grains, but I have no experience with Swiss (I'm a Goex guy) so the variances may enter into play. Good luck and good shooting!
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