Great job on casting!
What size are the boolits dropping from the mold?
Generally, the TL design does not have to be sized. BUT, some molds may not be within spec and may drop boolits too large. Then they would need to be sized down.
Slug your bore to find your groove diameter. Whatever this number is you generally want you bullets (forgot "boolits" is forbidden here) to be 1-2 thousandths OVER groove diameter.
BTW, there are many good vids on YouTube that will show you how to slug your bore.
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~~IllinoisCoyoteHunter~~
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