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cocker problem
My 2000 cocker has been very good to me, and over the past four years I've been good to her, but the past six months things have been not so good. It doesn't group like it used to, and when I put it on my chrono, it can sometimes jump 100 fps. What could this be due to? The front end is stock, but the hammer spring, bolt, cocking rod, ball detent, and grip frame are all aftermarket.
thanks
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