rootacres
WKR
- Joined
- Jan 5, 2018
- Messages
- 1,091
I go with option B. That is after I have confirmed my velocity and zeroed my rifle for the given elevation and temperature. After that I use the Hornady ballistic app to create a chart. Upon ranging the animal I am trying to take I will then reference my ballistic chart and dial up the MOA on my Razor HD LHT. It worked great a few days ago with literally your exact example. I have a 200 yd zero and shot my bull at 325yds.Let's say your rifle is zerod at 200 yards. You range an elk at 328 yards. What process are you using to compensate for that shot?
I know of a few ways. Not sure what is best practice, correct, wrong, etc... Hunter safety doesn't cover this type of stuff and I have no mentor.
What I did last year was print out the bullet drop for my cartridge, based on my zero range, at increments of 10 yards. After ranging a deer I held the crosshairs where I needed to, to compensate for the drop. I made the shot, hooray. But I only needed to compensate for 2". If I needed to compensate for 12" I don't think I'd have been comfortable holding over.
Here are what I think the options are and my thoughts about them.
Option A: Holdover based on printed out bullet drop/rise. This gets hairy when the drop/rise gets larger.
Option B: Adjust scope turrets based on printed out bullet drop so the crosshair is still POI. The clicks would be calculated ahead of time on the printout. This could get messy if you adjust turrets, then the animal moves, and you need to re-adjust. Math on the fly, in the moment. Also my turrets require a coin to spin. I can't use my fingers.
Option C: A BDC reticle. I actually have a Nikon BDC scope but on a different gun. Never tried to shoot past zero though. In the Nikon app you can plug in your ballistics and whatnot to get a readout for the various dots on the reticle, at all magnifications. Seems like it could work well but the numbers for the BDC dots aren't consistent. Like 200, 223, 245, 289, 301, 347, as you go top to bottom (I made those numbers up).
Option D: Set your rifle up with "maximum point blank range" instead of zeroing at a standard increment.
Are there other options I'm unaware of? Things I'm wrong about? Better ways to do things I've listed? What do you do? I'm all ears!
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Two things worth noting;
First, vortex among others give you the option of having custom turrets made for your specific rifle and load that can eliminate the need for a dope chart. The only kicker on this is they aren't cheap and for myself there is a huge elevation discrepancy from where I practice to where I hunt. (ie, 700' practice range, 7000' where I took the shot)
Secondly, I use adhesive backed Velcro strips for my dope chart. This way I can have a dope chart for different elevations. I am a right handed shooter, so I put the dope chart upside down on the right side of the rifle stock. This way all I need to do is flip the rifle parallel with the ground while holding it to read my dope chart right side up if that makes sense. The time lost between the dope chart and ballistic turret is very minimal.