There was a post recently about the new FX STX pellet barrel liners fouling quickly and the accuracy falling off fast. I found this true with my new Impact MKII in .22 caliber with the first shooting and accuracy falling off after 50 to 100 pellets shot. This was concerning to me but with each successive cleaning it took less patches to get the barrel clean. The way I look at it it is similar to breaking in centerfire rifles you must break them in with the right procedure. You can polish the bore or just shoot pellets til the bore smooths out. I would guess at this point I have shot over 1000 pellets through the barrel and have clean it about 4 or 5 times. I decided to do a video of current accuracy after shooting about 200 pellets since the last cleaning then and see if there is any difference in accuracy. After that I wanted to try indexing the barrel to get the best accuracy and harmonics. I am a noobie at this so judge the results as you like and add any insight as you wish. The video is long at 30 minutes but I wanted to show the process live. Bill
https://www.youtube.com/watch?v=VFN1Z9JVbDA&t=869s&ab_channel=GunPowder%26AirPower
https://www.youtube.com/watch?v=VFN1Z9JVbDA&t=869s&ab_channel=GunPowder%26AirPower
