Progressive band setup?

Jack Prodanovich did a 7/16 short shaft tuna gun with two stages of 3 band groups of rubber on a tracked pipe gun 30 + years ago.

I did a 6 foot barrel and a 48'' 3/8 shaft 25 years ago with 400lbs of rubber.

Mine was dangerous to load, as I was reaching in front of a loaded shaft,
and the short shaft was not as consistent in target grouping for me.

At the end of the day the faster the shaft goes, the harder it is to go fast.
Just like a race car.
Cheers, Don Paul

forgetting whether or not this is actually better than tradional Full band pull for the gun.

you said you would like a means to test this yes?

that should be fairly easy.

2x gun identical stock and spear (e.g. Undersea Barracuda) mainly because it is wood and pretty cheap (seeing as they have to be mutiliates a bit)

1 gun set up with 6mm shaft and 3bands in the tradtional location
1 gun set up with the same shaft and shootingline, only now you drill into the stock at your prefered location 2 extra holes for your staged bands, mount them .

then place target at say 5m and shoot both, firestly to obtain an accuracy comparison (very important) then graduallly move the shafts back further until you start to see one of the guns drastically loosing power and falling and hitting lower than the other this should give you an idea of power difference.

its not that we dont understand what you want to do it is that we dont agree that what you want to is more effective. yes 280lb is much less than 700lb but is this a correct comparison will your 3 staged rubberz producing "700lb" be more than 3 rubbers correctly matched to produce similar power coming from the muzzle. firstly the initail power number is not important because extra rubbers can always be added to match a staged setup with out the hassle of a staged setup. what is important is how long that power is exerted on the projectile. the longer the power can be exerted the more time is given to firstly overcum the inertia of a shaft but also then accelerate the spear.

think of a car with 500hp, a quick jab of the accelerator then another 2 softer ones will produces x ammount of momentom. now if you hold the throttle at say 2/3 for a longer period i'm pretty sure a higher momentom will be created and the car will go further. this is the same to what you are comparing with staged bands and traditional band locations.

i can just my opinion, but as you can see above it woukld be fairly easy to test the effectiveness of such a setup and i know everybody would be interested to see the results.

its not us being negative is just that we dont believe it is accurate, bit like throwing an open candy bar in the pool, most dont think it'll taste good.

DD

JCooke said:

lol, not worried about negative feelings, just concept.i was trying to add a nitros shot to the already exsisting bands. Would luv to test it out.JasPosted via Mobile Device

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how are you loading this "super fat band"? i presume it is some sort of lever system? if its gonna be more powerful than a "normal" longer band, its gonna have to be tighter than you can simply pull back. and IF you ARE gonna cock it by hand , then it cant really be more powerful than a longer band, in fact ,its gonna be less poweful, since it isnt as long, it seems like you are maybe missing the concept of aband pushing LONGER down the track equals more power, than the same band pushing less distance + will equal less power, no? i really think thats right, and you need to re examine your concept. if there is a good idea there i must be misundestanding the whole thing altogether ,(it is possible i guess). any way, you have alot of good ideas, i just think this may go in the other pile eventually, sorry, just my opinion.