turbo33 Posted March 28, 2013 Report Share Posted March 28, 2013 After a lot of faffing about, I've eventually got the mec 600 turning out reasonable crimps on the 20g. One thing I can't get rid of is a dip in just one place on every shell. If it wasn't for that, they'd be near perfect. The hulls are RC Sipe 70mm. I am thinking its a fault in the shell casing...plastic weak etc. Any ideas? Quote Link to comment Share on other sites More sharing options...
joknob Posted March 28, 2013 Report Share Posted March 28, 2013 your crimp looks a bit deep to me,try raising your shot slightly.craig After a lot of faffing about, I've eventually got the mec 600 turning out reasonable crimps on the 20g. One thing I can't get rid of is a dip in just one place on every shell. If it wasn't for that, they'd be near perfect. The hulls are RC Sipe 70mm. I am thinking its a fault in the shell casing...plastic weak etc. Any ideas? Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 28, 2013 Author Report Share Posted March 28, 2013 (edited) The crimp probably looks deep as the photo is super macro. Its 1mm deep, the originals are 1.15mm so nothing in it really. Edited March 28, 2013 by turbo33 Quote Link to comment Share on other sites More sharing options...
super sharp shooter Posted March 28, 2013 Report Share Posted March 28, 2013 Looks like your pre crimp might be a little hard. Try to back it off a little and try that. Quote Link to comment Share on other sites More sharing options...
sitsinhedges Posted March 28, 2013 Report Share Posted March 28, 2013 Standard crimp is about 1-1.5mm. A RTO in the drill press will tidy those crimps up even though they are perfectly serviceable as they are. 20gauge are much harder to get a good crimp than 12gauge in my experience, that's why I sometimes just use a rolled finish. The swirl in the centre is because your pre crimp is a little low but I'd rather have that than a hole in the middle or a sunken crimp. You could do the final crimp, turn the shell and repeat to see if the dent in the edge is repeated. Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 28, 2013 Author Report Share Posted March 28, 2013 (edited) Thanks, gives me a few things to try. Edited March 28, 2013 by turbo33 Quote Link to comment Share on other sites More sharing options...
Floating Chamber Posted March 29, 2013 Report Share Posted March 29, 2013 A small disc of brown parcel paper placed over the shot before pre-crimp will help. Try it. Quote Link to comment Share on other sites More sharing options...
mecman Posted March 29, 2013 Report Share Posted March 29, 2013 try lifting your crimp starter a couple of mm Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 29, 2013 Author Report Share Posted March 29, 2013 Seems the crimp starter is getting the vote first, so will give that a go. Thanks Guys Just need something to blam a few shells of at for the empties Quote Link to comment Share on other sites More sharing options...
Paladin Posted March 29, 2013 Report Share Posted March 29, 2013 Have you checked that you arn't hitting the wad too hard? Or have you got something up inside the tooling? It looks to me as if you might have shot stuck up there. get a paperclip up there or remove the tool and give it a visual. Paladin Quote Link to comment Share on other sites More sharing options...
Lord Geordie Posted March 29, 2013 Report Share Posted March 29, 2013 Have you checked your final crimp press to see if it shows any damage? Seems odd the imperfection is in the same place, same depth etc. I would almost beleive you were using a RTO crimper for your final crimp ? Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 29, 2013 Author Report Share Posted March 29, 2013 Have you checked your final crimp press to see if it shows any damage? Seems odd the imperfection is in the same place, same depth etc. I would almost beleive you were using a RTO crimper for your final crimp ? I took it apart, but can't see anything wrong. Yes it is weird. Other than that the crimps are pretty good. Have you checked that you arn't hitting the wad too hard? Or have you got something up inside the tooling? It looks to me as if you might have shot stuck up there. get a paperclip up there or remove the tool and give it a visual. Paladin No pressure at all on the wad from the rammer tube, its set to just sit on the wad. As above, I've stripped the final crimper and check the pre crimp. Can't see anyhting that would cause it. Quote Link to comment Share on other sites More sharing options...
Bluebarrels Posted March 29, 2013 Report Share Posted March 29, 2013 come on mate,get it sorted wev'e come to expect perfection on here BB Quote Link to comment Share on other sites More sharing options...
Paladin Posted March 29, 2013 Report Share Posted March 29, 2013 Failing that check the crimp starter, it looks as if there might be some damage to one of the blades. Try backing it off and the spiral twist should go along with the dip on the rim of the crimp. But it might dip. Paladin Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 29, 2013 Author Report Share Posted March 29, 2013 (edited) Ok, just had it apart. I can't see anything in the second crimp tube, no imperfections, burrs. The pre crimp is as high as it will go Out of used shells to give it a try. come on mate,get it sorted we've come to expect perfection on here BB I'm on it BB Edited March 29, 2013 by turbo33 Quote Link to comment Share on other sites More sharing options...
Mick Shaw Posted March 30, 2013 Report Share Posted March 30, 2013 I've loaded a lot worse looking crimps than yours but they have all fired ok, I know its nice to get it right, we all like a pretty shell but with some cases i have strugled to get it right, I sometimes try 2 or 3 different types of cases without changing the settings and if some of the others come out ok its just the cases. the worse I have had is Eley VIP in 28 gauge in my MEC 600 Junior, got so annoyed I had to have a beer and a lie down Mick. Quote Link to comment Share on other sites More sharing options...
Paladin Posted March 30, 2013 Report Share Posted March 30, 2013 Mick I worked there for years and they wouldn't let us have a beer or a lie down. I've loaded a lot worse looking crimps than yours but they have all fired ok, I know its nice to get it right, we all like a pretty shell but with some cases i have strugled to get it right, I sometimes try 2 or 3 different types of cases without changing the settings and if some of the others come out ok its just the cases. the worse I have had is Eley VIP in 28 gauge in my MEC 600 Junior, got so annoyed I had to have a beer and a lie down Mick. Quote Link to comment Share on other sites More sharing options...
turbo33 Posted March 30, 2013 Author Report Share Posted March 30, 2013 I've loaded a lot worse looking crimps than yours but they have all fired ok, I know its nice to get it right, we all like a pretty shell but with some cases i have strugled to get it right, I sometimes try 2 or 3 different types of cases without changing the settings and if some of the others come out ok its just the cases. the worse I have had is Eley VIP in 28 gauge in my MEC 600 Junior, got so annoyed I had to have a beer and a lie down Mick. I was told by the supplier of the Mec not to use Eley shells as for some reason they just won't work, as you've found. Quote Link to comment Share on other sites More sharing options...
sitsinhedges Posted March 30, 2013 Report Share Posted March 30, 2013 Eley 20g shells are my favourite Quote Link to comment Share on other sites More sharing options...
Floating Chamber Posted March 30, 2013 Report Share Posted March 30, 2013 (edited) Eley 20g shells are my favourite I have loaded most makes of 20g case and barely close them.....I leave it to a spin to make a good rounded closure. I must admit, I have little faith in the belief that you can get a 'factory finish' from any one-plunge static die. The closure made by Turbo33 would look great after a quick spin! That 'dip' would soon be ironed out! Edited March 30, 2013 by Floating Chamber Quote Link to comment Share on other sites More sharing options...
UK fowler Posted March 31, 2013 Report Share Posted March 31, 2013 bang on the money there FC finish them flat on the mec plunge and seat the crimp with a rotary crimp finisher even more so with new cases I have loaded most makes of 20g case and barely close them.....I leave it to a spin to make a good rounded closure.I must admit, I have little faith in the belief that you can get a 'factory finish' from any one-plunge static die.The closure made by Turbo33 would look great after a quick spin! That 'dip' would soon be ironed out! Quote Link to comment Share on other sites More sharing options...
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