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  #11 (permalink)  
Old 07-05-2008, 05:01 PM
Andrew Andrew is offline
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Re: Idea: Adjustable Picatinny Rail

I like it. I commend you for taking the initiative and turning your idea for an improvement for yourself and other players into (well, almost) a reality.

Just get a big stick ready so you can beat off Smart Parts' patent lawyers/owners who will try to sue you for using tactical rails like their SP1... or even aluminum!

Edit: WOW that last sentence sounded bad! By "beat off" I of course mean fight...
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  #12 (permalink)  
Old 07-14-2008, 10:45 PM
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Re: Idea: Adjustable Picatinny Rail

I did some testing of the angles required for a standard 14" barrel this past weekend. I would take a piece of wood, mark 3 foot up with a target and move it away from my firing position at 50ft, 75ft, 100ft, and 120ft marks. I fired the gun from 3 ft above the ground and secured it in place once I was hitting the target. Took my red dot and aimed it at the target at stock values. I then took some measurements and figured out the angles required for each shot. Here are the rough estimates:

50 ft = 1 degree
75 ft = 2 degrees
100 ft = 3 degrees
120 ft = 5 degrees

These were taken with a decent tail wind but I don't think it will be a problem for this design. At MAX setting, the APR can adjust 15 degrees. So I'm pretty sure it can handle any wind deviation for a standard barrel. Flatlines and apexes can probably make good use of this thing, too.

Worked out a couple details but only have a couple more to work on. Hope to have the final design done in a couple weeks.
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Old 07-15-2008, 12:07 AM
greggorievich greggorievich is offline
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Re: Idea: Adjustable Picatinny Rail

GREGG WANT.
this is the awesomest idea ever.
just to be clear, in case i'm mistaken, it's the back half of the rail that would raise for distance, yes?
either way, that is the most awesome idea i've seen in a long time. i want, nay, I need one!
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  #14 (permalink)  
Old 07-15-2008, 12:15 AM
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Re: Idea: Adjustable Picatinny Rail

Quote:
Originally Posted by greggorievich
GREGG WANT.
this is the awesomest idea ever.
just to be clear, in case i'm mistaken, it's the back half of the rail that would raise for distance, yes?
either way, that is the most awesome idea i've seen in a long time. i want, nay, I need one!
That is correct. It would be the back half of the rail that would raise.

I'm also thinking of incorporating engraved tick marks for every degree of angle with larger ticks at every 5 degrees with an indicator so I know what angle it's at, at a glance. That way, I can know what distance I'm setting it for in a hurry.

BTW, thanks for the rep!
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Old 07-15-2008, 12:31 AM
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Re: Idea: Adjustable Picatinny Rail

Nice, Odin !!

How about something like this?





It's the quadrant Sight from an M-26/M-203 launcher combo. You would need the carry handle attachment, but on the real deal it attaches to the carry handle and you sight it like an oversized rifle sight to give the M203 indirect fire capability to ranges of approx. 450 meters (the leaf sight only gets you to 250). You keep the sight level, and whatever adustments/settings you make result in you 'angling' the M-16/M-203 to pre-set the arc of the projo flight.



My only question on your design is how angling the scope itself will interfere or change how you aim. You would almost have to have the angle of adjustment going DOWN towards the front of the marker, so as you level the sight, you raise/arc the marker to make the ranging trick work. It would probably have to incorporate an offest like the JCS 3", but at least then you could make it reversible for leftys too...not a bad start to the idea, Odin..!

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Old 07-15-2008, 01:00 AM
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Re: Idea: Adjustable Picatinny Rail

Quote:
Originally Posted by TAG
Nice, Odin !!

How about something like this?





It's the quadrant Sight from an M-26/M-203 launcher combo. You would need the carry handle attachment, but on the real deal it attaches to the carry handle and you sight it like an oversized rifle sight to give the M203 indirect fire capability to ranges of approx. 450 meters (the leaf sight only gets you to 250). You keep the sight level, and whatever adustments/settings you make result in you 'angling' the M-16/M-203 to pre-set the arc of the projo flight.



My only question on your design is how angling the scope itself will interfere or change how you aim. You would almost have to have the angle of adjustment going DOWN towards the front of the marker, so as you level the sight, you raise/arc the marker to make the ranging trick work. It would probably have to incorporate an offest like the JCS 3", but at least then you could make it reversible for leftys too...not a bad start to the idea, Odin..!

--TAG--
Yeah, I'm curious if it will require the offset or not once it's done but I don't think it will. I'll find out once it's done.

Do you have any pics of how that rail mounts? It probably is a similar idea.
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  #17 (permalink)  
Old 07-15-2008, 01:33 AM
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Re: Idea: Adjustable Picatinny Rail

Sure -

I also remember they made an adapter for the quadrant sight to mount NV scopes like the PVS-2 to it. That's what got me to thinkin' about your idea and the offset. Since, like paintball, it will be indirect fire at best, the offset idea should work.

Here's some more pics I dug up:








Does that help you ? I'll keep looking if you need me to.

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Old 07-15-2008, 01:43 AM
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Re: Idea: Adjustable Picatinny Rail

Ok, I get it now. I always thought they used the carrying handle as the rear sight for the flip up range finder. Guess I was wrong.

In it's essence, the two designs are the same in their function. Just differ in design.
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  #19 (permalink)  
Old 07-15-2008, 10:46 AM
greggorievich greggorievich is offline
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Re: Idea: Adjustable Picatinny Rail

you're most welcome, and as to the angle, i figured, i just had to make sure
keep us updated this will be a handy piece of equipment!
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  #20 (permalink)  
Old 07-15-2008, 10:57 AM
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Re: Idea: Adjustable Picatinny Rail

Well, you've certainly got my interest.

As a potential customer, my biggest concern would be that the elevation controls lock down very, very well. Just something to consider.
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