ditchman Posted November 7, 2016 Report Share Posted November 7, 2016 Since my foray and return to my youth on the subject of airguns...i unfortunatly had to say bye bye to the airarms iwas so called given....(i gave it back to the "giver" ) as his bottom lip started to tremble................. as a result i have put the feelers out for a BSA Mecury Mod' "S"......which ....when i get hold of , will re-build, (in front of the masses)..........nowww....these ere' Merc's like to be fed the old Eley Wasps......14.5 gn...5.6mm skirt and 5.6mm head...........trouble is....they still make them...but the quality is rubbish...weights are different...lenghts are different and calibre is varying as well........... so i thought i would attempt to make a "Pellet re-former/shaper"...mould....so i would end up with a true 5.6mm skirt and head............... The donor pellet i have chosen is An air arms 16.5gn 5.6mm skirt...5.5mm head...these are a good pellet and the quality is regular....and the lead is even as well... the next few pages are of the process i went thro in making the "press / mould.......... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 (edited) so we start off with Key steel.....it is a pure steel...and even in hardness...good for drilling out cut it up into the little bits i need...then mill on the side of a good fine grinding wheel ..then flattern off on emery paper sitting on a piece of plate glass.............. then it is clamped together and spot welded either end so i can remove the clamps for drilling out... Edited November 7, 2016 by ditchman Quote Link to comment Share on other sites More sharing options...
la bala Posted November 7, 2016 Report Share Posted November 7, 2016 Cold in the workshop today ditchman, so i am going to sit here in the warm and watch you Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 so as to make the surfaces flush ...i had to mill off on the grinder about 0.5mm off.....then drill out the retaining /position bolts.... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 so holes drilled out to take the bolts....nice snug fit .....ready for the creating of the mould cavity..... ARE YOU WITH ME SO FAR...? Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 mark up spot for drilling out cavity........then measured waist of pellet.and choose matching drill..for primary drilling...... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 so it is then bored from the back/underneath....out to exactly 5.6mm....the flare of the skirt.....then turned over when the correct depth is reached and lightly bored to 5.6mm and the drill is reground to match the underside of the pellet head....then the waist is fettled with a needle file so it only holds the pellet and does not crimp it.......... the spots are cut off and the mould is opened and closed several times to bore out to the correct depths.... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 eventually the mould closes on the pellet without leaving any marks...the pellet is nice and snug and tight........thats the difficult bit done now....ready to make the head expander now.... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 making the head former...used a 4mm drill to start with....then fettled another drill down to 5.6mm with a flare......... Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 the head former die is not finished yet as i may deciede to change the shape and finish of it later on when i match it up to the Mecury S...... the skirt is ...(remains untouched at 5.6mm) .....but the head is now reshaped and measures (on average) a smigion over 5.6mm...RESULT will continue the story when i get the Mercury S hope you enjoyed....... ditch Quote Link to comment Share on other sites More sharing options...
7daysinaweek Posted November 7, 2016 Report Share Posted November 7, 2016 Wonderful! I look for to the finished project. atb 7diaw Quote Link to comment Share on other sites More sharing options...
la bala Posted November 7, 2016 Report Share Posted November 7, 2016 Another well made piece of kit ditchman Quote Link to comment Share on other sites More sharing options...
winnie&bezza Posted November 7, 2016 Report Share Posted November 7, 2016 Fascinating. Very well done. Quote Link to comment Share on other sites More sharing options...
TREV WILD Posted November 7, 2016 Report Share Posted November 7, 2016 Outstanding work I am impressed !!!!!!!!! Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 thank you.....the proof of the pudding is in the eating.............just waiting to track down a half decent mercury s .22...........then i will carry on with the next installment... Quote Link to comment Share on other sites More sharing options...
bruno22rf Posted November 7, 2016 Report Share Posted November 7, 2016 Try them in Whitebridges Stutzen - same barrel as the Merc S and I did indeed find she liked the old Wasps best. Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 Try them in Whitebridges Stutzen - same barrel as the Merc S and I did indeed find she liked the old Wasps best. excellent idea................cause it will be a while before i get the mercury...............good thinking batman.. Quote Link to comment Share on other sites More sharing options...
spandit Posted November 7, 2016 Report Share Posted November 7, 2016 Nice engineering but don't pellets fire form in the barrel? Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 (edited) Nice engineering but don't pellets fire form in the barrel? backend/skirt does...the pressure flares the skirt to fit the rifling..(works like the mini ball)...front end dont...................aannndd...that is the problem im trying to overcome .... Edited November 7, 2016 by ditchman Quote Link to comment Share on other sites More sharing options...
old'un Posted November 7, 2016 Report Share Posted November 7, 2016 Your not just a pretty face then Quote Link to comment Share on other sites More sharing options...
TIGHTCHOKE Posted November 7, 2016 Report Share Posted November 7, 2016 Your not just a pretty face then Specsavers may be able to help! Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 Your not just a pretty face then there are other parts of me that are considered to be by many...of worthy note.. Quote Link to comment Share on other sites More sharing options...
iano Posted November 7, 2016 Report Share Posted November 7, 2016 Since my foray and return to my youth on the subject of airguns...i unfortunatly had to say bye bye to the airarms iwas so called given....(i gave it back to the "giver" ) as his bottom lip started to tremble................. Is that the one I convinced you to 'improve'? Quote Link to comment Share on other sites More sharing options...
wisdom Posted November 7, 2016 Report Share Posted November 7, 2016 (edited) You sir are a mechanical and engineering genius Edited November 7, 2016 by wisdom Quote Link to comment Share on other sites More sharing options...
ditchman Posted November 7, 2016 Author Report Share Posted November 7, 2016 Is that the one I convinced you to 'improve'? yes...and he wanted it back.. You sor are a mechanical and engineering genius and im no genius.............im no more no less than a modern tinker....i like fiddling about.. Quote Link to comment Share on other sites More sharing options...
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