I recently bought a bronze bore brush that was marked as being appropriate for both 40 and 45 caliber pistols (I have a 40 cal Walther P99). Being a new gun owner, I tried to cram this thing down the barrel while cleaning (from the action to the muzzle). I gave up pretty quick when I realized that the brush just wasn't going to make it all the way through. A police officer friend looked at the brush and said it was made for a 45.
My question: will my attempt at using this brush damage the rifling in the barrel? I read (in a Hoppe's cleaning guide) that you don't want to let the steel rod touch the rifling, so I'm concerned about this situation as well. I shot very well the first session at the range prior to cleaing. After I used the brush, though, the gun seemed to shoot low and to the left.
Any help is appreciated.
My question: will my attempt at using this brush damage the rifling in the barrel? I read (in a Hoppe's cleaning guide) that you don't want to let the steel rod touch the rifling, so I'm concerned about this situation as well. I shot very well the first session at the range prior to cleaing. After I used the brush, though, the gun seemed to shoot low and to the left.
Any help is appreciated.