I'm cutting caps by hand and was wondering if someone could give me this spec? (Don't have a proper cap cutter yet). I assume it's a little under the actual rg of 50 since it's going on the end without any folding/pleating over. I measured out the exact diameter of 50 rg but seems a little too large still. I could keep going with trial-and-error, but why not cut to the chase with all you knowledgeable torcedors out there! Thanks!