turbo33 Posted April 20, 2013 Report Share Posted April 20, 2013 (edited) An update on the wierd crimps with the mec jnr. In the previous post I was having trouble crimping the reloaded 20g shells. They were coming out with dips round the edge. Pic here: So I examined the crmping mechanism thoroughly and after a lot of head scratching, found the problem. Inside the pre crimp, there were castings that are obviously meant to be there, at 120 deg intervals, obviously 3 of them. I assume it was to hold the shell in place or guide the spindex pre crimper to the right spot. In practise all they did was to make a dent in the shell past the point of rollover and stop the function of the rotating spindex, hence the rim buckling down. Pic here of the inside of the pre crimp showing one of 3 bars. [/url] Ok so out with the dremmel and a modelling knife, and the bars were removed so all the bars inside the pre crimp are the same. This is how they are turning out now. Edited April 20, 2013 by turbo33 Quote Link to comment Share on other sites More sharing options...
figgy Posted April 20, 2013 Report Share Posted April 20, 2013 Looking good. Figgy Quote Link to comment Share on other sites More sharing options...
Gordon R Posted April 20, 2013 Report Share Posted April 20, 2013 Well done. Been a good few years since I was into reloading, with a Bowman and Lee Loadall. I couldn't understand what had gone wrong. it must be quite satisfying to sort out the problem - then produce excellent crimp finishes. Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted April 20, 2013 Report Share Posted April 20, 2013 beautiful. Quote Link to comment Share on other sites More sharing options...
turbo33 Posted April 21, 2013 Author Report Share Posted April 21, 2013 Well done. Been a good few years since I was into reloading, with a Bowman and Lee Loadall. I couldn't understand what had gone wrong. it must be quite satisfying to sort out the problem - then produce excellent crimp finishes. Yes its good to find the problem, although I wouldn't expect a machine of this standard and cost to require "finishing" and fettling by the customer I have dropped Mec an email about it, but won't hold my breath for a response It is indeed satisfying though, to do the whole process, make the shot, load the shells and then drop a couple of pigeons for the dogs supper Quote Link to comment Share on other sites More sharing options...
Paladin Posted April 21, 2013 Report Share Posted April 21, 2013 Glad you stuck with it , and now they're looking good. Quote Link to comment Share on other sites More sharing options...
Dangerous Brian Posted April 22, 2013 Report Share Posted April 22, 2013 Many thanks for posting Turbo. I am having the exact same problem with my 20g mec. I thought it was just me not getting the settings right as I have only done a few hundred to date. Time to strip it down and clean it up then now I know where to look. Cheers Brian Quote Link to comment Share on other sites More sharing options...
turbo33 Posted April 22, 2013 Author Report Share Posted April 22, 2013 No probs Brian Have dropped you a pm. Quote Link to comment Share on other sites More sharing options...
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