cliveward Posted May 11, 2017 Report Share Posted May 11, 2017 you cant post that, thats just reloading porn. I'm no expert at this. Just a fussy ***. Yesterday I adjusted my 21 and a bit gram #7 load to be a 22 gram load to get the stack height just perfect so the crimps were totally flat, where before if the shot throw was a little light they would be slightly concave which bothered me. Been doing the same again this afternoon adjusting a 24 gram #6.5 load to get the stack heigh perfect to suit the crimp. The sensible way would be to adjust the settings on the crimp but it's pretty much perfect now and I don't want to be messing about adjusting it from load to load. I'd rather just fill it up with the right powder and shot, set the charge bar and away we go. Cheers Clive Quote Link to comment Share on other sites More sharing options...
matone Posted May 11, 2017 Report Share Posted May 11, 2017 Good work ,have a hankering to buy some components and start again,even though it doesn`t make sense ! My old machine didn`t like anything but compression cases to crimp tho` ..... Quote Link to comment Share on other sites More sharing options...
reggiegun Posted May 12, 2017 Author Report Share Posted May 12, 2017 Getting there, found 8 star crimp works best with the new hulls. Had to move to 67mm cases, with 24 gram lead, 16 mm fibre wad, 3mm nitro card and 18grns Psb+2. Can someone tell me if I want to do 70mm cases do you have to set the Mec 600 jnr to the 3" setting, as it kept squashing the cases. Quote Link to comment Share on other sites More sharing options...
reggiegun Posted May 12, 2017 Author Report Share Posted May 12, 2017 Hi Reggie, I've reloaded some 28 bore this afternoon and took a few pictures for your reference: Initial Crimp: Finished Crimp: Close-up of finished crimp: The black smudge on the close-up near the crimp is the level of the shot before crimping. Cheers Clive e Nice Quote Link to comment Share on other sites More sharing options...
cliveward Posted May 13, 2017 Report Share Posted May 13, 2017 Getting there, found 8 star crimp works best with the new hulls. Had to move to 67mm cases, with 24 gram lead, 16 mm fibre wad, 3mm nitro card and 18grns Psb+2. Can someone tell me if I want to do 70mm cases do you have to set the Mec 600 jnr to the 3" setting, as it kept squashing the cases. Hi Reggie, That's better! Adjusting the crimp depth a bit lower (not the cam) might neaten them up a bit more, but you might need to then adjust your column height if the sides of the cases start to buckle. The 'faceting' on new cases was completely cured by using the Gaep crimp start on my 28 bore. 70mm is 2 3/4" so the column bolt shouldn't need changing. It might be that your 67 and 70mm cases are different construction. Put the same load of powder, wad and shot in one of each. Don't crimp it and then measure the stack height. If the 70mm is higher then you can experiment with adjusting the stack height and or crimp depth settings. Cheers Clive Quote Link to comment Share on other sites More sharing options...
reggiegun Posted May 13, 2017 Author Report Share Posted May 13, 2017 Hi Reggie, That's better! Adjusting the crimp depth a bit lower (not the cam) might neaten them up a bit more, but you might need to then adjust your column height if the sides of the cases start to buckle. The 'faceting' on new cases was completely cured by using the Gaep crimp start on my 28 bore. 70mm is 2 3/4" so the column bolt shouldn't need changing. It might be that your 67 and 70mm cases are different construction. Put the same load of powder, wad and shot in one of each. Don't crimp it and then measure the stack height. If the 70mm is higher then you can experiment with adjusting the stack height and or crimp depth settings. Cheers Clive Clive please explain what you mean about adjusting column height. Regards, Reggie Quote Link to comment Share on other sites More sharing options...
cliveward Posted May 14, 2017 Report Share Posted May 14, 2017 Clive please explain what you mean about adjusting column height. Regards, Reggie Hi Reggie, Stack height or column height is the height of the overall components in the load. For instance in my 28 bore 70mm loads it's 60-61mm overall height. Adjust it by changing powder, shot and wad combinations. Cheers Clive Quote Link to comment Share on other sites More sharing options...
reggiegun Posted May 14, 2017 Author Report Share Posted May 14, 2017 (edited) Cheers, ordered some 14mm fibre wads as I want to get as close to 28 Grams as possible. Still can't press 70 mm hulls for some reason. Any idea? Edited May 14, 2017 by reggiegun Quote Link to comment Share on other sites More sharing options...
cliveward Posted May 14, 2017 Report Share Posted May 14, 2017 Cheers, ordered some 14mm fibre wads as I want to get as close to 28 Grams as possible. Still can't press 70 mm hulls for some reason. Any idea? Hi Reggie, What I would try would be to get a factory unfired 70mm cartridge and then slacken off your final crimp depth screw. Then put the cartridge into the final crimp, close the press ad then adjust the screw down until it bottoms out on the top of the cartridge. Then hold the cartridge up to the light and if you are lucky you should be able to see where the shot finishes. Mark the side of the cartridge and use that as your reference for the stack height when doing your reloads. If you cant see exactly where it is, then you can open up the end of the cartridge and measure it directly. Then you will know your stack height and crimp depth. After that all you need to adjust is the start crimp amount, and then final crimp cam which is detailed in the manual. Either side of correct is hole in the centre or swirled crimp. Cheers Clive Quote Link to comment Share on other sites More sharing options...
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