by Bowhunters » Mon Jul 20, 2009 2:45 pm
Brow Tine was on the money, you need to get some bow string wax at a bow shop or order it online and keep your string waxed all the time, even in the off season if you take a few weeks off from shooting put some wax on the string and then work it into the string with your fingertips before storing it away and rewax when you start shooting it again and every week or two if shooting a lot of arrows.
Part of the reason your string looks frayed and the nock string may seem to be getting loose is likely because the strings are dried out from no wax and may actually be shrinking in diameter depending on what material the string is made of.
As he said, since you've been shooting a dry string its best to take the bow to a shop and let them look at the bow string and see what they say about its condition, maybe they will tighten the nock string for you if needed.