Re: Variable Gantry Mount
I think the 5 position is $350.00 and add another $50.00 for the dial indicator. I'm not sure what the base price for the 10 position is but it has to be machined to fit your receiver. the 5 position fastens to your existing weaver style mount. It is a bit taller due to sitting on top of the mount than the 10 position.
The dial indicator is used for making adjustments to the mount. Say you are sighted in for a 200 yard zero and your trajectory info says you need 3.2moa to be dead on at 400 yards. Each .001 on the dial indicator is equal to 1 moa on the 5 position. The 5 position mount has been designed and machined to be exact for making the adjustments. You loosen the set screw that relates to the adjustment screw you wish to set for that distance. You put the dial indicator in the hole and lock it down. Set the dial to 0 then turn the elevation screw on that position till you add 3.2 thousanths and then tighten the lock screw down.
You can also use it another way, say you are 2 inches low at your 200 yard target and need to add 1moa to bring it up. You put in the dial indicator, looses the lock screw, set the dial to 0 and turn the elevation screw down till it reads .001. You'll be right on. The 10 position mount uses a bit differnet geometry to calculate the elevation needed for an adjustment. It's explained in the instructions but is a simple division of the moa needed by 730 to get how many .001 you need to be right on.
Actually much easier than it sounds and you can have infinite presets written down and can change all your presets to anything you wish as long as you keep your initial position as your starting point. I'd highly recommend getting the dial indicator with the mount and also getting a good set of quick release rings since you have to remove the scope to make the adjustments. The 5 position adjustment screws are on the top but you can make slight tweaks to the 10 position without removing the scope since the locking and elevation screws are on a 45deg angle. It's not as precise as using the dial indicator though.
I've had a few kinda poke fun at mine since they say the scope is so high above the boreline but it's not caused any problems for me. Some rifle shooters might think it's too high for their cheek weld to feel right but Chris and others at Hardrock that use them don't seem to have a problem. I have my 10 position preset from 200 thru 1000 in 100 yard increments and saved the last one for possibly tossing pills at a mile target. My son has his preset at 200, 400, 600, 800 and 1000 and uses his ballistic plexes and calculations for inbetween distances.
Hope this helps some, the mount might not be for everyone but it filled a need for me and my long range pistols. I don't crank on my scope but do rely on JBM charts and some calculated uses of my ballistic plexes to be pretty much on at any distance we shoot.
Good luck, hope this helps and if you have any other questions I'll try my best to answer them. Chris has always been very helpful with answering anything I might need help on. Give him a call and he'll go out of his way to explain the whole thing to you and also recommend which would be best for your uses. Tell him that the long range pistol guy from Ohio told ya to call. The only thing I can say about anyone bashing it, if ya haven't tried it or seen it in use then I think it'll open your eyes. It's not a replacement for a high dollar scope with gobs of elevation up and down to crank in but used in conjunction with a decent scope you can make quick reliable sight changes at various distances and be right on with not worrying about did I already crank that knob or am I a turn too much.
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