The rifle you have is probably not able to cut the mustard at long range (and from a hunting perspective 500 metres is long range. The characteristics of the rifle are a good indicator of its performance. Short and light gives lower velocity and less consistent accuracy, but is good to carry. Long and heavy gives higher velocity and more consistent accuracy, but is a bitch to carry. What you need to reach your goal is a 22-24" medium weight rifle.
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