Another scope/.300 question

[grey2112]

For the time being, given all the $$ I've been spending on optics, guns, etc. I'm wanting a modest cost solution for this problem and eventually consider better optics options. This would get me in under a $200 price point for now.

I am considering one of the Vortex Diamondback 2-7x35 models with the Dead-On BDC reticles for this application:

.300 Whisper AR upper, 16" barrel, to be used with both supersonic (125 grain bullets launched at 2400fps) and subsonic (220 grain launched at 1050fps)

Now, would I be able to use the Diamondback 2-7x35 model in this fashion:

Sight in for the supersonic 125 grain load, say at 100 or 200 yards for the crosshairs, and then use the BDC for the drop?

Here's what were looking at for a 100 yard zero and the drop:

With 200 yard zero:


Range Velocity Impact Drop
0 2400 -1.5 0
50 2267 1.63 0.92
100 2143 3.06 3.53
150 2022 2.6 8.04
200 1906 0 14.69
250 1794 -5 23.74
300 1687 -12.73 35.51
350 1586 -23.5 50.33
400 1490 -37.74 68.62
450 1401 -55.9 90.83
500 1319 -78.5 117.47
550 1246 -106.07 149.09
600 1181 -139.23 186.3


For the subsonic, I'll probably just use a red dot (mini-dot) attached to the scope itself on a ring, or perhaps work out the drop and click to adjust - but here are the specifics on drop with a 50 yard sight-in on the 220 grain SMK subsonic:

Range Velocity Impact Drop
0 1050 -1.5 0
50 1033 0 4.29
100 1018 -6.67 16.75
150 1003 -21.75 37.62
200 990 -45.46 67.12
250 977 -78.01 105.46
300 966 -119.61 152.85

[lovdasnow]

i have no idea if the reticle would correspond with the drops, i would suggest getting a scope with target turrets so that you could dial in the correct elevation. at long range you need to be exactly on, not in 50 yd increments.

i'm just starting to work on my drop tables(using a scope with turrets), so sorry i couldn't be of more help.

[libertyman777]

For the time being, given all the $$ I've been spending on optics, guns, etc. I'm wanting a modest cost solution for this problem and eventually consider better optics options. This would get me in under a $200 price point for now.

I am considering one of the Vortex Diamondback 2-7x35 models with the Dead-On BDC reticles for this application:

.300 Whisper AR upper, 16" barrel, to be used with both supersonic (125 grain bullets launched at 2400fps) and subsonic (220 grain launched at 1050fps)

Now, would I be able to use the Diamondback 2-7x35 model in this fashion:

Sight in for the supersonic 125 grain load, say at 100 or 200 yards for the crosshairs, and then use the BDC for the drop?

Here's what were looking at for a 100 yard zero and the drop:

With 200 yard zero:


Range Velocity Impact Drop
0 2400 -1.5 0
50 2267 1.63 0.92
100 2143 3.06 3.53
150 2022 2.6 8.04
200 1906 0 14.69
250 1794 -5 23.74
300 1687 -12.73 35.51
350 1586 -23.5 50.33
400 1490 -37.74 68.62
450 1401 -55.9 90.83
500 1319 -78.5 117.47
550 1246 -106.07 149.09
600 1181 -139.23 186.3


For the subsonic, I'll probably just use a red dot (mini-dot) attached to the scope itself on a ring, or perhaps work out the drop and click to adjust - but here are the specifics on drop with a 50 yard sight-in on the 220 grain SMK subsonic:

Range Velocity Impact Drop
0 1050 -1.5 0
50 1033 0 4.29
100 1018 -6.67 16.75
150 1003 -21.75 37.62
200 990 -45.46 67.12
250 977 -78.01 105.46
300 966 -119.61 152.85



Here's the BDC on the Vortex Viper, it's probably the same for the Diamondback.

http://www.vortexoptics.com/img/products/riflescopes/vortex/sub_viper3-9x40_bdc.jpg

Looks like maybe a 100 yard zero and then you might be good to go out to 250 with this BDC.

Check on BDC's for muzzle loaders, slug guns, 22lr, 22wmr or even a Crossbow. You might find a better match.

I've never owned a Vortex Diamondback but I've had 3 Vipers (currently have two) and I love the glass. I would compare them to scopes costing 3 times as much. Simply superb. Scott Berish at Liberty Optics can give you an honest estimation of the Diamondback and what you want to use it for. http://www.libertyoptics.com/

Also, look at Hawke optics. They deal primarily in airgun optics but don't be put off by that, spring gun rated scopes are TOUGH because they are subjected to reverse recoil. They have several BDC reticle styles and some software that you can plug your numbers into and get a better idea of which way you want to go.

http://www.hawkeoptics.com/us/riflescopes/endurance/index.php

http://www.hawkeoptics.com/us/specialized_reticles/index.php

Good luck!

Paul

[grey2112]

Thanks, Paul - never heard of Hawke. Any idea as to how decent the glass is?

The MAP 8 reticles and BDC software looks interesting - and not a bad price. May just have to take a gamble and try one out while saving up for a Kahles.

[libertyman777]

I've never tried the Hawke. Here are some sites that you can search. Also an outfit called Straight Shooters lists many of the Hawke models in the "Heavy Recoil" category. Based on what I hear, they are tough, functional and just under the Bushnell 3200 series in optical clarity.

The software over at Hawke is worth downloading. You can analyze most any round and reticle system.

http://www.straightshooters.com/navagationpages/scopeselections.html

Here are some of the places you can research about Hawke. And when you get ready to sell, the airgun crowd will snatch it up.

http://straightshooters.com/chat/

http://www.airgunadvice.net/index.php?sid=f8ab1a2936e4c359d7b1ed7ae7b37540

http://www.network54.com/Forum/79537/

But do call Scott at Liberty Optics. Get him to quote you on a Viper 2-7x32. It won't be much off your mark and even though the BDC won't get you as far as you want, the adjustments are repeatable and you can just put the dope on it you need. They will box and RTZ, the glass is amazing and they are tough.

Good luck!

Paul