I hope you have a proper rifle chamber on that Contender, absolutely necessary for best accuracy. If you want to, read on Mike Bellm's site about that. Anyway, I'm using the RD359170 for plinking, and the RD359190 for serious work. Shoot 'em both GC and lubed with Lee Alox, or preferably PP, consistent groups less than 3/4". When I PP I don't even have to resize the case on any of the calibers. GW
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