mechanical advantage for a big shot.

Don't meen to derail this thread but it looks like Jimmy got what he needed. I have a big shot and have only used it a couple time because I can't get it to shoot right. What are some of you guys using for weights and line and how do you lay the bag in the pouch it get it to shoot straight. Every time I do it, it flys out and shacks all over the place and goes dead.
 
Most of mine are Harrison Rockets...12 oz is the most used.

After I set the trigger on the BS I carefully cradle the TB in with the ring placed out. Tuck it in place deep don't just plop it in the pouch.

The line trails down to the Cube.

The crutch tip is OK but I should really have a shoulder pad. I get a black and blue spot once in a while.

My shooting stance for the BS.
 

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The single biggest hurdle I faced was finding a method of releasing the snap shackle without pulling the pouch off aim while pulling the release string. With the snap shackle I'm using, I've pretty much got to hold the shackle while pulling the pin. I've had good results with just about any bag I put in it.
 
When my Dad was teaching me to shoot .22 and shotgun he talked about breathing. Same thing applies for shooting the Big Shot. When I miss its generally because I yanked the string release instead of 'squeezing the trigger' as Dad said! I hear his voice when it happens too :)
 
I copied Tom's MA setup too. (Thanks Tom) I'm using a 10oz sherrill highball most of the time. I push the rubber for the finger grip to the side and put the shackle next to it. It's an absolutely deadly setup.
 
You guys should really try an air cannon. I couldnt imagine holding a bigshot on my shoulder like that, to each their own though.
 
I was always going to do something like this to mine. I use an 8oz throwball with mine. Any larger than that and I feel like it comes out sluggish.
 
223Tree-

I've really thought about it. I used to be a "spudder" when I was a kid. Do you use one? Care to share a pic?
 
I suppose I'm a bit late to this, but in my experimentation I found (what I think anyway) is a better and simpler alternative.

Really, the thing about pulling back the BS is not the mechanical advantage, it's the progress capture that's important. I got tired of having a mini-traxion flailing around after I pulled the trigger, not to mention having to scavenge it to use for other stuff.

I started using a piece of 1" tubular webbing tied in a klemheist onto the pole. Slide it up, clip the shackle in, and pull down the BS pouch and webbing at the same time. The webbing will grab on the BS pole just like it would on a rope. It's very easy to get it all the way down to the bottom of the pole, no MA required.

I'd recommend making your own endless loop using a water knot so you can get the length exactly right (for maximum pull) and having the release shackle inside the loop.

Hope this helps.
 
As Treewill said, it's the sliding holddown that's key, no MA required. The different between that and just pulling and holding with your arms is you can aim carefully and release smoothly, makes a huge difference in results.
-AJ
 
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