The 224 Clark is basically a 257 Roberts necked down to 22 and then fireformed to increase the shoulder to a steeper angle and blows out the case somewhat for increased powder capacity. Had one for a while but it involved turning the necks and fireforming so went to a 220 Swift Ackley Improved instead. However, the Clark would push a 80 grain out at 3400-3500 FPS and it was accurate.
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