cleaning pcp barrels

What is your opinion on cleaning pcp barrels patch worm or cleaning pellets will either do a good job? Thanks



Cleaning pellets? Have some but never used them. I’ve read that they’re pretty worthless. Patchworm? Used em on several air rifles and it’s an effective cleaning system for me. The patches start out dirty and finish up clean. Albeit I have run quite a few patches through a gun with a heavily leaded barrel or the barrel of a new gun. I’ve used them on .25 - .45 caliber barrels. 


I use 1” square cotton patches with the Patchworm

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While the patchworm is probably the most popular cleaning method/tool (I have been using them on my powder burners for years) there are some guns the patchworm won't work on like the HW44 pistol. There just isn't room in the chamber to get the line to go thru. So I use heavy monofiliment fishing line doubled over. I feed the loop thru from the muzzle and insert the patch in the exposed loop in the chamber then pull thru. Same idea as the patchworm, but essentially free if you've got the line on hand.
 
For most air rifles, a pull-through cleaning system is all you need. But, if you own many rifles, you will likely have a few that foul to a degree that requires more aggressive cleaning. It's a good idea to go ahead and invest in a good rod and brushes, to be prepared. Some barrels never need it, some during break in, and others, regularly. If needed, remove the barrel and clean from the breech. 
 
I am very careful with my Daystate barrels. They have the "O" rings in the breech and that does demand a certain degree of caution as not to cut or tear them.

I always use a pull through with a cotton piece of cloth soaked in non-chlorinated brake clean or Ballistol, but when the gun began loosing accuracy (as in less than one hole at 40 yards) and after checking the tightness of all screws, I did the dirty that sends chills up most air gunners spine.

I cleaned a slightly worn 177 cal. brass brush and carefully ran it through the muzzle to the breech and back. The brush was soaked in CLP and then ran some patches to finalize. The "O" ring was not damaged and accuracy came home.

This is not an every day routine, but one that needed to be done after the passage of many pellets.
 
Tallen,

Manufacturers often, if not always, use a corrosion prevention product inside the barrel. I've been on this forum since April, can't recall anyone who claims an upfront cleaning isn't helpful. Leading-in, seasoning or barrel break-in is another matter. I'll let others speak to that, but after a good initial cleaning, all my air guns, except for one (that's a story for another day) shot well after less than a dozen rounds.

WM
 
Might not be necessary, but it won't hurt. Most of the makers shoot a short chrono run before shipping, and many dealers do the same, so in most cases, it's already been shot a few times. I have had a couple of Anschutz rimfire rifles that had a lot of heavy duty brown stuff in the bore, and I was glad I cleaned them. But I've never encountered the same in an air rifle. 
 
have new M-Rod, do I need to clean barrel before I start shoot it? Is there a break-in procedure? 


I’d clean it. Some manufacturers tend to use to some sort of grease or oil in the barrels that I assume is for long term storage (e.g. shipping, warehousing, and sitting in a retail store) in order to prevent rusting. I’ve had this experience with Benjamin products. I shot a Bulldog without an initial cleaning and it shot fine, but when I did finally clean it, the barrel was gunky. I must have gone through 20-25 patches and a couple of bore tips (that came with it). As for breaking it in shoot some pellets through it after cleaning. I’m not sure how many shots people with Marauders take to lead their barrels, but 50 can’t hurt. Pay attention to your groups to see if they tighten up as you shoot more pellets through a freshly cleaned barrel.