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only posted this because I just got some .66 green gzk rubber I cut four strips 15mm wide a 9 inch active length a draw of 44 inches shooting 11.5mm lead balls with power of about 13.5 ft lbs this was shot in a cool environment . I just made this catapult I dont know why catapults like this are not mentioned more . you get better power and accuracy and no hand slap . OK you cannot slip it in your pocket .My main reason for thread was the GZK bands I thought would be just the same old hype about this rubber , Its my first set of bands with this stuff it seems very good . I usually use theraband gold just putting this here for feed back .

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very nice catty Barry

i didnt know about the gzk rubber so i bought 0.8 green 

i dont have a crony but it does seem better than theraband 

it lasts longer and for larger ammo you dont need double bandsets 

for small ammo the bandwidth can be cut a lot narrower than theraband

 

the only problem i have now is that i need to work out the best band size taper etc for my needs where i had more or less done this with theraband

keeps the hobby interesting though

the other variable is i have only tried 0.8mm and there are a few thicknesses to try 

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  • 4 months later...
On 05/01/2020 at 06:31, whipbed said:

very nice catty Barry

i didnt know about the gzk rubber so i bought 0.8 green 

i dont have a crony but it does seem better than theraband 

it lasts longer and for larger ammo you dont need double bandsets 

for small ammo the bandwidth can be cut a lot narrower than theraband

 

the only problem i have now is that i need to work out the best band size taper etc for my needs where i had more or less done this with theraband

keeps the hobby interesting though

the other variable is i have only tried 0.8mm and there are a few thicknesses to try 

I am still using TBG for 9.5 mm steel , chrono are a very usefull thing once you have got one you think how did I manage with out one before .

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