legality and help with sinclair rest w/ speed screw and f-class feet

[bsumoba]

So I got a sinclair rest with the windage controls. I like it a lot so far. I ended up purchasing the f-class feet and bought some longer screws as well. The front two screws are fine, but the problem is if I want to use a foot for the back, I will not be able to use the speed screw that comes with it. I like the speed screw a lot and thought about how I can use this while still putting a foot on the back. So, here was my idea:

I obtained a large scrap piece of acrylic that is about an inch thick. I roughed it out to the shape of the existing sinclair base and then put oversized holes for the screws to go through. The two screws in the front will go through the plastic base and to the feet so I can still adjust the screws higher if needed.
On the back, I will somehow fix the foot to the plastic base. I would put a flat sheetmetal piece (in the picture a ruler is used to mimic this) fixed to the top of the plastic base that will allow the speed screw to adjust on. As I turn the speed screw, the original sinclair rest will move up and down and essentially pivot off the front screws. Since the holes in the plastic base are oversized, they will not interfere with the screws as the speed screw is moved up and down. The plastic piece is then sort of floating in the front and is used as a "base" for the back.

I am wondering if this is legal per the rules. The plastic piece is part of the rest so my interpretation is that it is legal.

So you ask, why not put NO foot in the back and speed screw directly to the ground? Well, in the main place I shoot, the firing line is gravel, so the speed screw will just dig into the gravel and not effectively move the back up and down. There is no "foot" for the speed screw either unless I maybe weld the foot to the speed screw portion.

I guess I could also put a flat plate on the gravel for the speed screw to adjust on. This might be simpler, but I think I like the idea of all three point of the rest really fixed to the ground so there is no movement between the whole rest and the firing line ground.

The last option is to just ditch the speed screw and use the same foot and a slightly shorter screw in the back, but the adjustments would not be as smooth as the speed screw.

I hope I explained this enough and if anyone has a better idea, I am open.

 

[rickiesrevenge]

I had that same rest for a while. When I shot f-class with it I just put a longer screw and an f-class foot on it. Didn't see any real disadvantage to it. When I shot BR I used the speed screw. Can't help you with the legality of your setup.

Aaron

 

[ARIZONA_F_CLASS]

Looks legal to me, You still have the 3 points to the ground. But you might get one of those whiny F Open guys say different.... ;D lol

 

[Immike]

Ummm , since you got the prototype I'm guessing there is no rules against it. Shoot it!!

 

[dbramley]

Easy Rocky!

 

[ARIZONA_F_CLASS]

Easy Rocky!

lol, I knew someone was going to bite!!! lol

 

[suberjc]

Looks legal to me, You still have the 3 points to the ground. But you might get one of those whiny F Open guys say different.... ;D lol

Whiney? Whiney?

Well OK yeah we're pretty whiney. Especially those of us who came from, ahem, other disciplines. Over there winners are determined by 10 ring hits and whine count. You also get 30 points for being able to quote the rules so you never have to DNF.

Rest looks cool to me dude. I got my gunsmith at DPR to do some combination of screw/sleeve thingey and I got my speed screw mounted in an F-Class foot. Works great.

 

[ARIZONA_F_CLASS]

Looks legal to me, You still have the 3 points to the ground. But you might get one of those whiny F Open guys say different.... ;D lol

Whiney? Whiney?

Well OK yeah we're pretty whiney. Especially those of us who came from, ahem, other disciplines. Over there winners are determined by 10 ring hits and whine count. You also get 30 points for being able to quote the rules so you never have to DNF.

Rest looks cool to me dude. I got my gunsmith at DPR to do some combination of screw/sleeve thingey and I got my speed screw mounted in an F-Class foot. Works great.

LOL, Suberjc, I tried sling in practice last summer. And the results were. OH HELL NO!!!!! It was a very humbling experience!!!!

 

[painless2]

Remember reading somewhere you may have a "flat" board under your rest but may not contain
A leveling device. Open to interpretation.....
Tom

 

[Terry]

Great craftsmanship!