I have the 600mm barrel with the GRS stock and was shooting 25gr and 34gr Wildman slugs.
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Air Arms Weird Problem with My New Leupold
- Thread starter johnwoitalla
- Start date
Thanks, I appreciate the information. Wish I had known this going into my situation. I never adjust the elevation on my guns once I get them zeroed, so the amount of elevation adjustment available on my scopes has never been of much consideration...thus my naivete. Live and learn, hindsight is 20/20.
20 MOA Explained
There are many misconceptions in the world about what a 20MOA base does. Many of those misconceptions stem from perceptions about what a 20MOA base is capable of providing, and when it is needed on a rifle. Many shooters who want to shoot long range automatically assume they need a 20MOA...warnescopemounts.com
Here is a summary of what a canted mount or rail does. Your rifle has 30moa of angle built into it, traditionally this is to help a scope deal with lots of trajectory drop at longer ranges. If you have too much mechanical moa to start off and you shoot closer distances, you need a scope erector assembly that has enough adjustment to compensate. Your Leupold is meant more for a dedicated purpose built target setup with known traditional quantities. It has run out of elevation range. So to address this you can get a set of adjustable rings, that will introduce an opposite cant angle and allow you to zero.
Back in the day, like 10-15 years ago, effectively all action rails were dead flat with no built in cant angle. So when we ran out of adjustment trying to dope 1500yds+, a scope mount with built in 20moa was amazing to have. You are running into the opposite side of that same coin; running out of elevation adjustment in your scope but in the opposite direction. Leupold has a listed spec for that scope of ~45moa total adjustment, and this covers the whole range. That means if your windage is mechanically centered in your scope tube you should get about 22moa of up from center, and 22moa of down from center. This equates to 1.5 revolutions of your particular turret up or down.
More modern craze tactical scopes have several revolutions worth of travel and over 100moa total adjustment. Not necessarily a bad thing, just a limitation you should be aware of so you can work around it.
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Yeah, but that Vortex you got there is on a base with no moa built in.They directly marketed towards airguns too unfortunately. I've had weaver mounting issues cause problems before where I overlooked an incomplete seating or locating block got caught up (3 rails look the same but aren't technically the same picatinny/weaver/nato).
ive also had cheap chinesium optics run out of z travel and just shimmed the rear ring like the tail stock on a lathe just to do a quick fix.
Speaking of wrong scope for the application I got a fixed 100yd parallax vortex viper pst to work on a disco at 15 yards today with meat on the bonetalk about a value disparity optic-rifle
Hey op, do you have an update?
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FMA-TR1, it looks busier than it is, but works out very well without cluttering up the view.
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if you want to use the efr scope go buy burris signature zee rings and an accessory kit with all the different inserts. I just run up on this problem on my texan. almost completely out of elevation at 100 yards and if you are using a cheap scope you want the recticle to be near the center of the scope because the IQ is much better when all the lenses are close to center.the 30mm signature rings come with 2 plus 10 inserts and 2 minus 10 inserts. you can take back 20 moa of the 30 on the gun and the closer the rings are on the base the more moa you get. 1 inch extra high rings will be needed for your leupold efr.
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