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I would agree with not having to clean after several rounds, at least 20. However if you change ammo type or brand, I recommend you clean the barrel due to different fouling, copper consistensies and obvious natural differences in ballistics. I you truly wish to see how your firearm digests different ammo types you should clean right before you switch, otherwise you won't need to.
I also recommend you run a clean dry patch after you clean, in order to prevent mixing the cleaning solvents chemicals with your ammunition's fouling which could affect your ballistics.
I would agree with not having to clean after several rounds, at least 20. However if you change ammo type or brand, I recommend you clean the barrel due to different fouling, copper consistensies and obvious natural differences in ballistics. I you truly wish to see how your firearm digests different ammo types you should clean right before you switch, otherwise you won't need to.
I also recommend you run a clean dry patch after you clean, in order to prevent mixing the cleaning solvents chemicals with your ammunition's fouling which could affect your ballistics.