I have a FX Chronograph for sale. I’ve compared it against my Caldwell Chronograph and it’s about 40 fps slower. I’m told it can be finicky but I’m not sure I like that. It reads consistently shot to shot, but it’s just not for me. I’m interested in trading for .30 or .22 pellets, .22 or .30 moderators, or anything else airgun related. 
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