I am new to airgunning. Active Benchrest 22 caliber powder shooter @ 50 yards on USBR targets. I bought my first airgun a few weeks ago and love it. I am told that PCP guns because of dual recoil tear scopes up. I am using a Nightforce scope that I removed from one of my Anschutz action guns. It is the 12-42 X 56 power scope. Focus begins @ 25 yards. Very large, very heavy, very accurate and bright. Am I making a mistake using this scope for target shooting?