TIGHTCHOKE Posted July 24, 2022 Report Share Posted July 24, 2022 Put a picture up! Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 1 minute ago, TIGHTCHOKE said: Put a picture up! Not home at the moment ill need to dig out some scales and stuff as soon as I get back im on it Quote Link to comment Share on other sites More sharing options...
holloway Posted July 24, 2022 Report Share Posted July 24, 2022 I think you have tested enough of that batch Have you sent them the same pictures ? If i had loaded them I would be begging you to send them back to me asap . Quote Link to comment Share on other sites More sharing options...
holloway Posted July 24, 2022 Report Share Posted July 24, 2022 Well if the right shot and powder is in each shell… ,logic says the crimp is too tight ,deep ? Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 7 minutes ago, holloway said: Well if the right shot and powder is in each shell… ,logic says the crimp is too tight ,deep ? It’s a rto 55 minutes ago, Stonepark said: More and more it's looking like the powder load is too much and the powder burning speed is too slow. Something has definitely gone wrong at manufacturers process. Quote Link to comment Share on other sites More sharing options...
holloway Posted July 24, 2022 Report Share Posted July 24, 2022 16 minutes ago, Old farrier said: It’s a rto Roll crimp can give problems but not so likely .Have you weighed in grains ? Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 6 minutes ago, holloway said: Roll crimp can give problems but not so likely .Have you weighed in grains ? Yes sorry should have said appologie for weight of shot in grains Just now, Old farrier said: Yes sorry should have said appologie for weight of shot in grains I set the powder alight and it wasn’t overly fast burning Quote Link to comment Share on other sites More sharing options...
Stonepark Posted July 24, 2022 Report Share Posted July 24, 2022 Lyalvale were using a double base flake powder in their 410 2.5 and 3 inch cartridges. It looks like they have now changed to a 'ball' powder' doesn't look like SP3 (but difficult to tell as slightly out of focus), I do wonder what it is..... Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 6 minutes ago, Stonepark said: Lyalvale were using a double base flake powder in their 410 2.5 and 3 inch cartridges. It looks like they have now changed to a 'ball' powder' doesn't look like SP3 (but difficult to tell as slightly out of focus), I do wonder what it is..... I can’t really post you a sample or I’d be happy to let you have a few to dissect many thanks for your thoughts and input Quote Link to comment Share on other sites More sharing options...
aberisle Posted July 24, 2022 Report Share Posted July 24, 2022 I also had some 410 lyalvale cartridges and this happened to them, i wont be buying them again . LYALEVALE.jfif Quote Link to comment Share on other sites More sharing options...
holloway Posted July 24, 2022 Report Share Posted July 24, 2022 Looking at your weight for shot at l39.2 grains and converted 14 grams to grains unless I have got it badly wrong your shot weight should be somewhere around the 216 grain mark so ….and someone please check yourself the shot weight is much too light . This would probably mean that the charge isn’t holding the powder back sufficiently to work as normal ,or am I talking rubbish as usual.? Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 3 minutes ago, holloway said: Looking at your weight for shot at l39.2 grains and converted 14 grams to grains unless I have got it badly wrong your shot weight should be somewhere around the 216 grain mark so ….and someone please check yourself the shot weight is much too light . This would probably mean that the charge isn’t holding the powder back sufficiently to work as normal ,or am I talking rubbish as usual.? I’ll take another to bits and try to get it a bit clearer for the picture 14 minutes ago, aberisle said: I also had some 410 lyalvale cartridges and this happened to them, i wont be buying them again . LYALEVALE.jfif 97.11 kB · 2 downloads Sorry I’m struggling to see your download Quote Link to comment Share on other sites More sharing options...
wymberley Posted July 24, 2022 Report Share Posted July 24, 2022 6 hours ago, Walker570 said: Useless after you've pilled the head off🤣 Well our friend is a metal worker but slightly different. He could probably make a few for the Ukrainians and their 155mm howitzers. OF's photo's show the whole extractor whereas we don't know what's on the other end of Holloway's example. I know what they are and have seen them but that's me lot. What would be the purpose of the 'other end' - the 90 degree pointy bit? Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 3 minutes ago, wymberley said: OF's photo's show the whole extractor whereas we don't know what's on the other end of Holloway's example. I know what they are and have seen them but that's me lot. What would be the purpose of the 'other end' - the 90 degree pointy bit? To pull the case out after the heads come off although it’s not something that I want to use Quote Link to comment Share on other sites More sharing options...
wymberley Posted July 24, 2022 Report Share Posted July 24, 2022 1 minute ago, Old farrier said: To pull the case out after the heads come off although it’s not something that I want to use Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 2 minutes ago, wymberley said: A temporary version only needed when the head came off and left the cases in the chamber Quote Link to comment Share on other sites More sharing options...
harkom Posted July 24, 2022 Report Share Posted July 24, 2022 Those torn case mouths indicate that there is an overpressure problem. If I were you I would be sending some for testing at an independent lab. Quote Link to comment Share on other sites More sharing options...
Stonepark Posted July 24, 2022 Report Share Posted July 24, 2022 (edited) Picture posted by Aberisle Common 410 powders Edited July 24, 2022 by Stonepark Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 3 minutes ago, Stonepark said: Picture posted by Aberisle 90.74 kB · 0 downloads Many thanks very similar sort of glad it’s not just me 🤔 If you could recommend a way to take a more helpful picture of the components I’m happy to try Quote Link to comment Share on other sites More sharing options...
Stonepark Posted July 24, 2022 Report Share Posted July 24, 2022 17 minutes ago, Old farrier said: Many thanks very similar sort of glad it’s not just me 🤔 If you could recommend a way to take a more helpful picture of the components I’m happy to try I don't think it is you, I just uploaded a clean in focus picture of SP3 from my phone. It appears to be the image compression undertaken by the forum when the picture is uploaded is messing with the fine detail/focus. Quote Link to comment Share on other sites More sharing options...
Donkey Posted July 24, 2022 Report Share Posted July 24, 2022 I use ram shot enforcer powder which looks a lot like that but commercial powders used by cartridge manufactures are very different to what we can buy over the counter Quote Link to comment Share on other sites More sharing options...
holloway Posted July 24, 2022 Report Share Posted July 24, 2022 If these are 24 gram cartridges that is 370 grains ,what your picture shows is 139 grains, so they are badly undercharged. Quote Link to comment Share on other sites More sharing options...
Old farrier Posted July 24, 2022 Author Report Share Posted July 24, 2022 2 minutes ago, holloway said: If these are 24 gram cartridges that is 370 grains ,what your picture shows is 139 grains, so they are badly undercharged. 18 grams of 7 shot I think I messed up the scale with the led shot picture Quote Link to comment Share on other sites More sharing options...
Walker570 Posted July 24, 2022 Report Share Posted July 24, 2022 Burned ends to cases are quite common in 410s 1 hour ago, harkom said: Those torn case mouths indicate that there is an overpressure problem. If I were you I would be sending some for testing at an independent lab. Quote Link to comment Share on other sites More sharing options...
Stonepark Posted July 24, 2022 Report Share Posted July 24, 2022 (edited) Having done a bt more digging, I think we are dealing with Lovex DO37.2 ... Czech Powder, equivalent of SP3. Also used for heavy magnum pistol cartridges (as is SP3) and suitable for 410 as noted by the manufacturer. has that off tan looking colouring as per the OP's picture. Edited July 24, 2022 by Stonepark Quote Link to comment Share on other sites More sharing options...
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