Somebody just posted how to tell twist here a day or so ago. It had to do with using a jag and patch and measuring how many revolutions the patch made while being inserted down the pipe. I guess if ya know math you could figger it out pretty easy. Lenght of barrel and how many revolutions per inch would give you twist. Example: 24" barrel, 1/2 rotation in 24" would be 1 in 48 twist. I think thats right....
Found that post. Here's the cut and paste version:
"If you don't know you can run a tight patch down the barrel and just measure how many inches it takes for the rod to make one complete revolution. (or make one-half a revolution....then multiply by 2."
I buy a box of those alcohol pads that are pre packaged (the one's people use for injections) and wrap 'em around a jag. I just run one down and it will get it clean enough to load the next one.
Alcohol dries very quickly, so your powder won't get wet. I also use those to wipe off my frizzen and flint. Powder residue will attract moisture from the air very quickly. Removing the powder residue will give you a much better chance of your next shot not going "click".
When I am at the range I have a water bottle, I use it to drink and to wet a square piece of cloth that I run through the barrel I clean mine out every 3 shots. I have never had a problem getting the powder wet on the next shot. The alcohol wipes are very good for your lock