BDC reticle for rimfire

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boxhitch

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Time to kill, so worked on the answer to a question I had

Can a BDC-type reticle meant for quick holdovers on a cf cartridge be used for .22 rimfire? Answer is yes
Took an example from a manufacturers website and plugged values into a ballistic calculator

For a scope zeroed @ 50 yds and using the subtensions described by manf'er shows
1st = 1.50 moa = 1" and 63 yds
2nd = 3.50 moa = 3" and 78 yds
3rd = 6.25 moa = 6" and 96 yds
4th = 9.50 moa = 12" and 115 yds
5th = 13.6 moa = 20" and 138 yds

This is purely for the particular info I looked at, but can be determined for any scope
I think this opens up a number of options to be used with the .22, maybe not target accuracy but certainly m.o.gopher
 
this gets better...or worse depending on pov
Reticle has 2 reference points above the center line

so zero'ed @ 100 yds ;)
top is hold down 3.5" = 67 yds
then 3" = 74
zero is 0"
1st = 1.60" = 109 yds
2nd = 4.50" = 121 yds
3rd = 9.10" = 137 yds
4th = 15.0" = 154 yds
5th = 25.0" = 175 yds

with 8 or 10" targets thats a cof lol
 
I think Jahnj's thinking of CF scopes that give MOA-values for the dots for diff cals. I've never used a BDC-rimfire, but you can develop dope for them I guess. I've used BalCalcs from Nikon but never plugged in 22LR. I just never thought of it but you could just get dope for SV & HV and put a stickie on the flip-lid ?
Thanks Boxhitch. Along these lines, here's a chart I 'found' somewhere. 6-Brands of ammo, Drops calc for 50-yd Zero.
22-LR-Traj-6-Brands.jpg
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I haven't bought one new in a long time, but the Burris scopes with their Ballistic-Plex reticle were very usable for everything including rimfires. At one time they came with a chart and an actual series of adhesive stickers for a broad range of centerfire and rimfire cartridges, giving specific drop figures for the additional crosshairs for each cartridge/bullet combo.
 
A scope that came to mind with the BDC is the Bushnell AR series
The DropZone 22 reticle is limited but the DZ223 or DZ308 have more hash marks so could be 'recalibrated' for 22 at a variety of distances
 
The vortex one has it all printed in the bdc manual? They have expected drops listed for classes of rifles 'A' to 'F' with rimfires being 'E'.

Zero at 50, first hash (1.5moa) 60 yards, second hash (4.5moa) 90 yards, third hash (7.5 moa) 120 yards, post is (11moa) 140 yards.

I prefer to run the numbers and make (and confirm) a drop chart, then just highlight the line/range at which the hashmarks line up to the drop. Unfortunately the data on the moa measurements of their hash marks isn't in that manual and you need to find another one (but I edited and added them in)
 
boxhitch said:
This is not for a moa reticle
Click to expand...

That doesn’t matter, sub tensions are still measurable in MOA thus being able to be used with anything, You can do this with a simple duplex reticle even. Put your rifle In a rest and measure against a grid to find the moa values if the manufacturers specs can’t be had.
 
yes it can, but the point being made is that BDC CF scopes can be used for rimfire, and having more aim points than a simple duplex is an advantage
 
Regardless of what the reticle is marked in (MOA or MIL) or for (BDC for .223 for example), what you want to know is which mark on the reticle puts you on target with your rifle and your ammunition at a given distance, and that's best done with your rig set up for benchrest or as firm as you can make it with paper at those distances, after you get it zeroed, to see what your drop will be going further out. Then write that down!

The other thing I look for in a rimfire scope is a clear view at very short range, 20 or 25 yards, because sometimes competition has shots that close and because sometimes taking it to an indoor range can be nice (Welcome to Canada!). Centrefire scopes often assume targets are 50 or 100 yards out onward and get really fuzzy closer.
 
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