I got this for the extension cavity swabs, and they're pretty much useless - barely long enough to partially wipe the ID of the LR-308 cavity, IF I can keep them from getting caught in the lug teeth and into the cavity. I wanted to be able to thoroughly clean the cavity quicker and easier than using a flannel patch and a Tipton plastic pick. This set doesn't do that, and costs a boatload more.
If I had i to do over, I'd just go with Dewey's chamber rod and brush, which ARE really nice - 5 stars on their own, giving this kit the 3-star overall rating. The swabs...1-star.