Skot Ruthless Teale 1,701 Posted June 10, 2013 Report Share Posted June 10, 2013 Hi guys, as you may or may not know I recently fitted a vmach kit to my hw97kt .177, 26 mm piston using none of the washers supplied, just the spring and tophat.. after 30 pellets fired after installing the kit using unweighed,washed and lubed pelets I shot a 20shot string --> lowest 10.52 ftlb 751 fps highest 11.49 ftlb 785 fps spead almost 1 ftlb and 34 fps now after 1500 shots fired using the same pellets from the same tin with the same chrono etc lowest 11.56 ftlb 787 fps highest 11.96 ftlb 801 fps spread 0.40 ftlb and 14 fps pellets used were jsb exact "8.44" 4.52 washed and lubed with wd40, but not weighed.. 14 fps is ok I suppose and im not too bothered about it the gun is nice to shoot and very accurate so all is good.. apart from the power! how many coils will I need to remove from the spring to get it to about 9.5 - 10 FT LB using these pellets, to make sure it will stay legal no matter what pellet is used.. im not sure how many coils the spring has but its a 'standard' vmach .177 mainspring for hw97.... any help would be greatly appreciated thanks in advance SKoT Quote Link to post
zini 1,939 Posted June 10, 2013 Report Share Posted June 10, 2013 I would say just 1 coil Skot and not more. Quote Link to post
moxy 617 Posted June 10, 2013 Report Share Posted June 10, 2013 As zini says You can always take off but never put back Quote Link to post
Skot Ruthless Teale 1,701 Posted June 10, 2013 Author Report Share Posted June 10, 2013 I would say just 1 coil Skot and not more. really?! only one..? I thought it would need more than that to get down to 9-10 FPE I was thinking about PM'ing Davy and asking if he would do it for me, if I post him my spring, after watching his excellent vid he did the other week I don't have access to a grinder or a blowtorch or anything like that so someone else will be doing it for me haha of course I will pay for their services, that should go without saying, im not a freeloader SKoT Quote Link to post
moxy 617 Posted June 10, 2013 Report Share Posted June 10, 2013 You could always have a trip over to keighley skot and i will balls it up for you Quote Link to post
Skot Ruthless Teale 1,701 Posted June 10, 2013 Author Report Share Posted June 10, 2013 You could always have a trip over to keighley skot and i will balls it up for you didn't realise you were so close mate.. might take you up on that.. what do you mean balls it up.??! lol do you actually know what your doing tho...?! Quote Link to post
moxy 617 Posted June 10, 2013 Report Share Posted June 10, 2013 Havent the foggiest, but i have watched some you tube clips Im sure it can be bodged with a mallet and pair of bolt croppers Quote Link to post
davyt63 1,845 Posted June 10, 2013 Report Share Posted June 10, 2013 hi Skot if you want to send it to me that's fine,it wont take five minutes to take a coil of,that's all it would need Quote Link to post
Skot Ruthless Teale 1,701 Posted June 10, 2013 Author Report Share Posted June 10, 2013 so 1 coil will drop it from 11.8 to 10 ?! seriously I would have thought it would be more than one coil! il pm you davy and wel sort sumat out mate, thanks Quote Link to post
moxy 617 Posted June 10, 2013 Report Share Posted June 10, 2013 Havent the foggiest, but i have watched some you tube clips Im sure it can be bodged with a mallet and pair of bolt croppers That was a joke skot but as you have got what you requested in the first place alls well Quote Link to post
davyt63 1,845 Posted June 10, 2013 Report Share Posted June 10, 2013 (edited) so 1 coil will drop it from 11.8 to 10 ?! seriously I would have thought it would be more than one coil! il pm you davy and wel sort sumat out mate, thanks hi Skot i can take two off if you like,but only if you have some pre load washers remember i have to compress the spring as well,so that's like removing more of the coil. Edited June 10, 2013 by davyt63 Quote Link to post
Skot Ruthless Teale 1,701 Posted June 10, 2013 Author Report Share Posted June 10, 2013 Havent the foggiest, but i have watched some you tube clips Im sure it can be bodged with a mallet and pair of bolt croppers That was a joke skot but as you have got what you requested in the first place alls well I hope I haven't offended you ?! Quote Link to post
Skot Ruthless Teale 1,701 Posted June 10, 2013 Author Report Share Posted June 10, 2013 so 1 coil will drop it from 11.8 to 10 ?! seriously I would have thought it would be more than one coil! il pm you davy and wel sort sumat out mate, thanks hi Skot i can take two off if you like,but only if you have some pre load washers remember i have to compress the spring as well,so that's like removing more of the coil. if you take 1.5 to 2 off that will be fine I have 4 or 5 preload washers to slightly up the power if it goes below 9 ftlb thanks again davy Quote Link to post
moxy 617 Posted June 10, 2013 Report Share Posted June 10, 2013 Havent the foggiest, but i have watched some you tube clips Im sure it can be bodged with a mallet and pair of bolt croppers That was a joke skot but as you have got what you requested in the first place alls well I hope I haven't offended you ?! Elephants Quote Link to post
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