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That being said, What is the difference between the RCM case and the SAUM case?

GH - The RCMs are not rebated rims so better in regards to potential bolt over ride feeding problems. RCMs are significantly less case capacity than the SAUMs (roughly in the 70grs versus closer to 80grs range water to the mouth I believe).

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300SAUM
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Last edited by Whelen_B; 01/06/10.