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While working up loads for my 1895G Marlin,(.45-70) I noticed a difinite ring developing on the new Starline brass I was using. I started at 90% of max load of 68 gr. of H335 (61.2 gr,) for a 300 gr. JHP. No indication of high pressure there, but at 63.5 gr.of H335 a ring started to form. This occurred for all loads, 300 gr. JHP, 350 gr. JFP, and 405 gr. JFP.at about .933% of the listed max loads for Marlin Lever Actions. I can't estimate the pressures involved but the velocities were about 2085 fps for the 300 gr., 1915 fps for the 350gr, and 1787 fps for the 405's. The ring, of course, got more pronounced when the load was increased to .945-.955% of max. What puzzle's me is this: There was no expansion of the brass at the case head or web, but only up about .260" from the rim where the brass should be supported by the chamber. Do Marlin 1895G's have an oversized chamber? Why no expansion closer to the rim before the webbing where the case is not supported. Also, would the cases with the slight ring be safe to reload with reduced loads, something the equals factory loads. Hope somebody has experienced the same thing and has a satisfactory answer. Thanks in advance, dgang
 
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