Hello all, Decided to splurge a bit and pick up a S&W 617 revolver. Heard great things about it and felt great in my hands, and as with the other couple firearms I now own, intend on keeping it forever... so figured it was worth spending a little more dinero in the long run. One of the great things I've heard about the 617 was it's accuracy. I'm primarily shooting paper, so I wanted something more accurate than just shooting holes through cans (while that still is great fun). This is the first revolver I've owned and in searching youtube videos for cleaning revolvers, it appears that it is inevitable that one must enter the brush through the muzzle end. Apparently you can potentially damage the crown or rifling and deteriorate the accuracy of the firearm with improper cleaning...and from what I gather that is more of a risk cleaning from the muzzle end. Definitely something I want to avoid. Having just purchased the 617 and being a bit apprehensive, I called S&W and a rep stated that while you could use a bore snake, a real cleaning requires a brush, which you would have to go through the muzzle because of clearance. He stated he personally just uses a bronze brush and rod and just does it carefully. He also mentioned if you really wanted to preserve the accuracy and protect everything, to go with a muzzle guard/guide. So I call around a handful of places, and only one had any clue what I was talking about. I ended up finding a couple things on MidwayUSA / Brownells that seem to be what he was talking about. This is all new stuff to me and I may very well be getting a little anal retentive here, but figured it was worth asking before potentially causing harm to my new firearm. I assume the biggest issue is the rod itself scraping against the crown or rifling, however was also under the impression that brass wouldn't do harm. Clarification on this matter and cleaning suggestions would be greatly appreciated. Thanks!