Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
User Panel

Page AR-15 » Optics, Mounts, and Sights
AR Sponsor: bravocompany
Page / 3
Link Posted: 6/17/2008 8:52:39 AM EDT
[#1]
I have the TA33R8 on a CMMG 14.5 1/7 hvy, flat top upper with PWS gas piston.
The scope is on a ARMS #19LD and #38 swan sleeve.
How does this equate for proper zero using the BDC?
Link Posted: 8/5/2008 9:02:31 PM EDT
[#2]
Great thread!  I'd love to have similar information for the new 6x48 ACOGs.
Link Posted: 8/25/2008 6:45:00 PM EDT
[#3]
Best Thread Ever
Link Posted: 8/28/2008 12:23:07 AM EDT
[Last Edit: hossb7] [#4]
Any information on the TA33 with various barrel lengths and various types of ammo?

edit: or would it be similar to the other 62gr. 5.56mm Flattop BDC's?
Link Posted: 9/10/2008 9:11:24 PM EDT
[Last Edit: BePhreed] [#5]
Sorry for this question because it was probably already addressed but I don't want to sight my optic in wrong. A standard TA01 on a flat top using M193 should be sighted in according to the manual? Thanks.

Link Posted: 11/18/2008 12:24:45 PM EDT
[#6]
I'll be receiving an ACOG TA33-R8.

It's going to be on an Armalite M15A4 11.5" 5.56 1/9 twist and loaded with SS109 ammo. What kind of BDC will I get ? What kind of sigh-in should I do ?
Link Posted: 12/17/2008 6:39:21 PM EDT
[Last Edit: 223Rem] [#7]
The MV of a 2970 FPS for a 62 grain bullet from a 14.5" barrel has all ways bugged me.  May be from a 20" barrel.  When I contacted Trijicon about the BDC for my TA31DOC, I was told it is for a 62 gr bullet traveling @ 2800 FPS.  The rep said it is the same for the TA01NSN etc.  This sounded more reasonable to me, but wanted more proof.  Just looking through some load manuals I have laying around, MVs for 62/63 grain bullets with a 24" barrel at best were 3200 FPS.  Loosing 10" of barrel will equate to more than 200 fps loss of MV.

Just a thought.....



Link Posted: 2/11/2009 2:05:37 PM EDT
[#8]
tag
Link Posted: 2/14/2009 9:17:46 PM EDT
[#9]
I'm guessing that since the TA31H is flattop designed mount, that it uses the 62 grain m855 BDC?   Anyone able to confirm?
Link Posted: 3/24/2009 4:30:39 AM EDT
[#10]
Anyone know how much of a difference using SAMMI spec loading with the same bullet will effect the calculations with NATO ammo (i.e. using 55 grain .223 instead of M193)?

I realize that the slower velocity would cause the bullet to drop faster, but is it enough of a difference to notice?
Link Posted: 4/26/2009 3:17:03 AM EDT
[#11]
For those of you who want a 75gr load for your M4 to match the BDC of the TA01NSN (based off of M855): http://www.ar15.com/forums/topic.html?b=6&f=42&t=278324&page=1
Link Posted: 12/29/2009 3:03:49 PM EDT
[#12]
Does anyone know if the BDC on the TA31RCO-M4 is the same as the TA31F?  I'm looking for the closest match I can find for a flattop 16" shooting 75-77 gr...
Link Posted: 1/17/2010 7:28:10 PM EDT
[#13]
Originally Posted By hossb7:
Any information on the TA33 with various barrel lengths and various types of ammo?

edit: or would it be similar to the other 62gr. 5.56mm Flattop BDC's?


No answer in a year and a half. I think that would be the one to use.

Lumpy, can you put the TA33 into it's correct spot?

Link Posted: 2/15/2010 12:59:13 AM EDT
[#14]
Okay, here's what I came up with for the TA-33 with the horseshoe reticle for my 16" flat-top, with Prvi 75gr OTM based on 2525fps & .351 BC.  I ran the numbers through the JBM ballistics calculator to get the dope.  

@ 100 Yards, top of center dot for zero
@ 200 Yards, bottom of center dot
@ 275 Yards, top of illuminated post (300 yard marker)
@ 375 Yards, top stadia line (Marked 4)  3" low
@ 450 Yards, middle stadia line
@ 550 Yards, bottom stadia line, 6" low.
Link Posted: 3/24/2010 8:39:30 PM EDT
[#15]
Any one interested in helping me put together a 4x32 ACOG chart?  All the different models have me confused.  (there are TA01s for 20 inch 193 and then other TA01s for 14.5 855, there are a bunch of different TA31s, etc)  The FAQ on the Trijicon site only addresses a few models.  My goal is to get everything into an excel file and post for all to reference.  

Model.........................Calibration Barrel Length..........Flat Top (FT) or Carry Handle (CT)..........Calibration Bullet

TA01
TA01B
TA01ECOS
TA01LAW
TA01NSN
TA01NSN-RMR
TA31
TA31-CH
TA31-G
TA31A
TA31ECOS
TA31ECOS-G
TA31F
TA31F-A
TA31F-G
TA31F-RMR
TA31H
TA31H-68
TA31H-68-A
TA31H-A
TA31H-G
TA31RCO-A4CP
TA31RCO-M150CP
TA31RCO-M150CP-G
TA31RCO-M4CP
TA31RMR
TA31RMR-A
TA31RMR-G
Link Posted: 3/31/2010 3:22:40 PM EDT
[#16]
Ok, lemme make sure I got this.   I get the BDC data from trijicon for a ta11h.  Plug that info into JBM and set zerofor 100 meters, and have the trajectory dump in meters, and the resulting ballistic data should be the starting point for matching my load.  Then, use JBM to create tables to get the trajectory as close as I can to the scope's BDC data, correct?  Trying to get the 300 & 400 marks as close to the default as possible.

FYI, trijicon gave me a MV of 3,050 for the ta11-h, which is different than the 2,970 that's in this thread.
Link Posted: 4/3/2010 12:10:09 AM EDT
[#17]
My points of impact are a good bit different than those projected from the chart.  From my 16 inch flat top, ACOG TAO1NSN shooting Privi 55 grain M193, when zeroed at 100 YARDS I get the following:

200 yards:  Right on with 200 line.
300 yards:  5 inches higher than the 300 line.
500 yards:  10 inches higher than the 500 line.

It is consistant so I don't mind aiming low for longer ranges. Have not tried 600 yards yet.
Link Posted: 4/6/2010 6:03:31 PM EDT
[#18]
Link Posted: 4/7/2010 7:02:02 PM EDT
[Last Edit: eracer] [#19]




Originally Posted By itgoesboom:

Okay, here's what I came up with for the TA-33 with the horseshoe reticle for my 16" flat-top, with Prvi 75gr OTM based on 2525fps & .351 BC. I ran the numbers through the JBM ballistics calculator to get the dope.



@ 100 Yards, top of center dot for zero

@ 200 Yards, bottom of center dot

@ 275 Yards, top of illuminated post (300 yard marker)

@ 375 Yards, top stadia line (Marked 4) 3" low

@ 450 Yards, middle stadia line

@ 550 Yards, bottom stadia line, 6" low.


The manual that came with my TA33G-H shows only chevron aiming points. (Same with the online version...)



Without getting too crazy about match accuracy, would it be fair to assume that the above data will hold reasonably true for Hornady TAP 60-gr. from a 16" flattop?



I'd like to set the top of the center dot at a 6 o'clock hold on a 100 meter zero, the bottom of the center dot at 12:00 hold for 200 meters, and hope the other range markings are close.





Link Posted: 4/19/2010 6:12:20 PM EDT
[#20]
Originally Posted By eracer:

Originally Posted By itgoesboom:
Okay, here's what I came up with for the TA-33 with the horseshoe reticle for my 16" flat-top, with Prvi 75gr OTM based on 2525fps & .351 BC. I ran the numbers through the JBM ballistics calculator to get the dope.

@ 100 Yards, top of center dot for zero
@ 200 Yards, bottom of center dot
@ 275 Yards, top of illuminated post (300 yard marker)
@ 375 Yards, top stadia line (Marked 4) 3" low
@ 450 Yards, middle stadia line
@ 550 Yards, bottom stadia line, 6" low.

The manual that came with my TA33G-H shows only chevron aiming points. (Same with the online version...)

Without getting too crazy about match accuracy, would it be fair to assume that the above data will hold reasonably true for Hornady TAP 60-gr. from a 16" flattop?

I'd like to set the top of the center dot at a 6 o'clock hold on a 100 meter zero, the bottom of the center dot at 12:00 hold for 200 meters, and hope the other range markings are close.





Curious as well. But I shoot 50 grain hollow points out of a 16" 1:7 WOA stainless barrel.
Link Posted: 4/19/2010 10:27:50 PM EDT
[#21]
I need to know what TA31-rcoA4 will be on a 20" barrel flat-top using 55gr xm193 will be with the BDC.......


I'm trying to make an A4gery but can't afford to shoot expensive M855 every time I go out shooting.

Help me out guys.
Link Posted: 5/10/2010 9:27:41 AM EDT
[Last Edit: Scooter1942] [#22]
I've been trying to figure out BDC's too.

I just received this from Trijicon this morning. While it doesn't address the flat top/carry handle issue, it does reveal  muzzle velocities (based on barrel length) for most of their models.




ETA: the TA31TRD, not listed in the chart is based on a 14.5" barrel length.






Link Posted: 7/17/2010 6:13:19 PM EDT
[#23]
Originally Posted By Scooter1942:
I've been trying to figure out BDC's too.

I just received this from Trijicon this morning. While it doesn't address the flat top/carry handle issue, it does reveal  muzzle velocities (based on barrel length) for most of their models.

http://i24.photobucket.com/albums/c35/scooter1942/TrijiconReticles.jpg


ETA: the TA31TRD, not listed in the chart is based on a 14.5" barrel length.







Thanks for posting this. I have a TA11E on a .308 16" flat-top. I had been basing my BDC zero on a 20" barrel (adjusted to my 16") and now need to do some ballistic kung-fu to figure out the zero based on a 22".
Link Posted: 10/13/2010 7:36:19 AM EDT
[#24]
Originally Posted By Bartholomew_Roberts:
Originally Posted By swenis:
I have a TA11F that's going on my Noveske Afghan upper.  How would I zero it to best accommodate Black Hills 75gr. ammo (blue box)?


Not enough information to tell. You need to know height over bore (2.5" for a TA11 in a TA51 mount), ballistic coefficient of the 75gr Hornady, and muzzle velocity from the Afghan barrel. Also, I don't have the time anymore to figure out that data for everyone who wants a specific match for their rifle; but I can tell you how to do it yourself.

When you have all those things take a ballistics computer and enter the info from "Stats used to figure BDC baseline" for the ACOG of your choice (For the TA11F, it would be M855 traveling at 2,970fps with a BC of .304 and a height over bore of 2.5"). Assume a zero of 100yds. Note the rise/drop every 100yds or 100m. You can do more if you like; but all you are doing is describing points on a parabola for comparison.

Now enter the data from your Novseke Afghan into the ballistics computer. Adjust the zero range on the ballistics calculator until the trajectory best matches the data you have written down for every 100m. You are unlikely to get a perfect match and you may have to decide whether you need a greater match close-in, or a greater match at distance. When you have a zero distance that gives you a trajectory you can live with, note the rise or drop at the range you will physically zero the ACOG (for example say 1.2" high at 100yds). When you go to the range, adjust your ACOG until you are striking 1.2" over the point of aim (which should be the outside tip of the chevron for the TA11F).

Here is a handy online ballistics calculator if you don't already have a program:
www.norma.cc/htm_files/javapagee.htm


So if I understand it right then based on the TA11F whose BDC was calculated with a 2.5" over bore height, 62gr M855 @2970 FPs and .304BC and plug that into a 16" AR using that optic and a 75gr Hornady HPBT with a .395BC @2615fps and 2.5" over bore height then it works out that
@100m zero the rifle 1.2"
high then impacts will be:
@200m it will be 1.1" high
@300m it will be 0.4" low
@400m it will be 3" low
@500m it will be 6.1" low
@ 600m it will be 8.8" low?
Is that how you calculate it? I just wanna be sure cause I am deciding on a ACOG to buy and though a TA11C would fit best I hate that reticle so I am looking at other options.
Link Posted: 10/13/2010 8:03:33 AM EDT
[#25]
tag for later .
Link Posted: 3/6/2011 12:45:51 PM EDT
[#26]
Originally Posted By Scooter1942:
I've been trying to figure out BDC's too.

I just received this from Trijicon this morning. While it doesn't address the flat top/carry handle issue, it does reveal  muzzle velocities (based on barrel length) for most of their models.

http://i24.photobucket.com/albums/c35/scooter1942/TrijiconReticles.jpg


ETA: the TA31TRD, not listed in the chart is based on a 14.5" barrel length.








in this image trijcon has the TA11F with a 20" barrel, but in post #2 it says the TA11F was calibrated using a 14.5" barrel (and M855 + Flattop mount).  

In post #4 it says 20" barrels were carry handle calibrated.

So is this 14.5" flat and 855, or 20" carry and 193?

It's confusing, I wish they would just post exactly how each model was calibrated.
Link Posted: 10/4/2011 11:30:00 PM EDT
[#27]
Bringing back an old thread, but it's really the only place to put it....

I checked my M855 speeds today, and I got an avg of 2990 out of 16 inch barrel. I believe 14.5 is 2900...

now I *think* they used 2970 to set the BDC on the TA01NSN, so I should be ok I guess.

the FAQ says the diff is minimal, but 100fps is a big diff I think, no?
Link Posted: 11/5/2011 4:42:40 AM EDT
[#28]
Given TA11C is the best for heavy 77 gr SMK, etc. on a 16" 1/8 flattop, how badly would M855 deviate if sighted in for 77gr?

I never had much luck with M855 at longer ranges, but am I correct in understanding that M855 or M193 would not be much off within 200 yards if sighted in for SMK? As you would still be using the donut and not the grid?
Link Posted: 12/6/2011 11:53:49 PM EDT
[Last Edit: GreatLoner] [#29]
Question for this:

For a Flattop 16" firing 75gr OTM
Sight in 1.1" high at 100. You'll be 1" high at 200, dead on at 300 and MOA until 600 where you will be 7" lower than the BDC.


I'm planning on re-sighting my TA31F on a Larue mount with 75gr TAP. Can I still zero at 25m then just confirm if I'm good at 100m later on? The range I go to only goes to 100 yards max.
Link Posted: 12/23/2011 4:53:34 PM EDT
[#30]
Originally Posted By El_Pharmaceutico:

in this image trijcon has the TA11F with a 20" barrel, but in post #2 it says the TA11F was calibrated using a 14.5" barrel (and M855 + Flattop mount).  

In post #4 it says 20" barrels were carry handle calibrated.

So is this 14.5" flat and 855, or 20" carry and 193?

It's confusing, I wish they would just post exactly how each model was calibrated.


Post #4 was originally written in 2003, when the selection of ACOGs and reticles was much less than it is now.  I would rely on Trijicon's information since it is A) from Trijicon and B) more recent.

Link Posted: 12/23/2011 4:56:20 PM EDT
[#31]
Originally Posted By taseal:
Bringing back an old thread, but it's really the only place to put it....

I checked my M855 speeds today, and I got an avg of 2990 out of 16 inch barrel. I believe 14.5 is 2900...

now I *think* they used 2970 to set the BDC on the TA01NSN, so I should be ok I guess.

the FAQ says the diff is minimal, but 100fps is a big diff I think, no?


At 600yds, the difference between 2,900fps and 2970fps at the muzzle translates into an extra 7" drop. From a practical perspective (which is the perspective the chart was created from), that means the difference in drop between the two rounds at 600yds is less than the width of the crosshair.
Link Posted: 12/23/2011 4:58:48 PM EDT
[#32]
Originally Posted By ad_nauseam:
Given TA11C is the best for heavy 77 gr SMK, etc. on a 16" 1/8 flattop, how badly would M855 deviate if sighted in for 77gr?

I never had much luck with M855 at longer ranges, but am I correct in understanding that M855 or M193 would not be much off within 200 yards if sighted in for SMK? As you would still be using the donut and not the grid?


The best way to figure this out is with a ballistics calculator as I outlined earlier in the thread; but I generally find that the differences in various .223 ammo at less than 200yds are minimal from a practical shooting perspective.
Link Posted: 12/23/2011 4:59:58 PM EDT
[#33]
Originally Posted By GreatLoner:
Question for this:

For a Flattop 16" firing 75gr OTM
Sight in 1.1" high at 100. You'll be 1" high at 200, dead on at 300 and MOA until 600 where you will be 7" lower than the BDC.


I'm planning on re-sighting my TA31F on a Larue mount with 75gr TAP. Can I still zero at 25m then just confirm if I'm good at 100m later on? The range I go to only goes to 100 yards max.


Sight in dead on at 25m using the 300m aiming point and you should be close enough that you won't have to adjust much at longer ranges.

Link Posted: 12/23/2011 5:02:07 PM EDT
[#34]
Just one more comment, a lot of the information in the ACOG BDC Chart is dated now and over 8 years old.  Rather than rely on the chart for anything but a hasty "get me close" zero, I would instead get a ballistics calculator, your particular ammo data, and use the information from this thread to calculate a trajectory that works best for you - and then share that information here.
Link Posted: 4/20/2012 12:07:47 PM EDT
[Last Edit: GettoPhilosopher] [#35]
EDIT: It gets worse.  I called Trijicon and they gave me the actual MOA values of the reticle on the TA11F, and I can't for the life of me figure out how they got those values.

According to Trijicon:

100m: 0
200m: 2 MOA
300m: 4.4 MOA
400m: 7.8 MOA
500m: 12.6 MOA
600m 18.6 MOA
700m: 26.4 MOA
800m: 35.8 MOA

What am I doing wrong?

=====================================================================================
Sorry for the noob post, but I don't understand why––with the same data and the same JBM calculator––I often get wildly different results than others.

So for instance, someone else posted these drop values:

100: 0 inches, 0 MOA
200: 2.4 inches, 1.5 MOA
300: 11.1 inches, 3.5 MOA
400: 27.8 inches, 6.6 MOA
500: 54.7 inches, 10.5 MOA
600: 95.2 inches, 15.1 MOA
700: 153.3 inches, 20.9 MOA
800: 234.3 inches, 28.0 MOA

Now when I plug everything in using Trijicon's values for the TA11F (I confirmed with Trijicon CS today) of being zeroed for a 62gr bullet at 3050 FPS from a 20" barrel, and using a BC of .304, I get this:

100:-0.0in-0.0 MOA
200:-3.2in-1.4 MOA
300:-13.7in-4.0 MOA
400:-33.7in-7.4 MOA
500:-66.4in-11.6 MOA
600:-116.1in-16.9 MOA
700:-188.6in-23.5 MOA
800:-290.9in-31.7 MOA

Very different values.  I can't say with 100% certainty that I'm not screwing something up (I could have sworn I've run it in the past and gotten different values, which would imply that I'm making mistakes inputting data into the calculator), but I'm triplechecking everything.

Any suggestions/help?

Link Posted: 11/28/2012 8:03:55 PM EDT
[Last Edit: willcarter49gmail] [#36]
This is direct from Trijicon CS today.  I hadn't found this information anywhere on the web.  Plug it into your ballistic reticle calculator and know where you are hitting for any load.

TA11E (308 Flattop) is in fact calibrated for 175 gr ammo at 2651 fps.  Elsewhere someone had incorrectly posted that it was for a 168 gr. projectile.

100 meter ZERO is tip of Chevron
2.2 moa to inside tip of Chevron, 200 m
4.7 moa to tip of BDC, 300 m
8.3 to 400 m
12.4 to 500 m
17.0 to 600 m
22.3 to 700 m
28.4 to 800 m
Link Posted: 6/6/2013 11:23:19 PM EDT
[#37]
Good stuff..
Link Posted: 11/8/2013 9:48:37 AM EDT
[Last Edit: TaylorWSO] [#38]
If you want to use a Ta11E on a 16" 308 weapon and want to shoot 147gr, you need to zero at 45 yards to match the BDC pretty closely to 500 yards. After that it goes to crap pretty quickly
range    BDC        147gr/2250          difference







0              -2.5        -2.5                        0







50          -0.6        0.2                        -0.8







100         0              1.5                          -1.5







150         -0.8        1.1                        -1.9







200        -3.2        -1                          -2.2







250        -7.2        -5                            -2.2







300        -13          -11.1                      -1.9







350         -20.7     -19.6                      -1.1







400         -30.5      -30.7                    0.2







450        -42.5      -44.6                      2.1







500        -57          -61.8                      4.8







550        -74.1      -82.5                      8.4







600         -94.1      -107.1                  13







650        -117.2   -136.2                    19







700         -143.8    -170                      26.2







750        -174.1    -209.3                    35.2







800         -208.5   -254.4                    45.9







850        -247.3    -306                      58.7







900        -291      -364.5                  73.5







950        -339.9    -430.5                    90.6







1000       -394.5    -504.6                  110.1







 
Link Posted: 3/23/2014 11:01:00 AM EDT
[#39]
This is helpful.

Thank you.
Link Posted: 11/1/2014 3:03:01 PM EDT
[#40]
First thank you very much for all your time and effort put into this thread OP.

My question just to be certain: I have a TA33 on a flat top 14.5 inch and use M193. Sight in at at 50 yards?

Thanks,

Jim
Link Posted: 3/13/2015 11:07:39 AM EDT
[#41]
This all blows my mind and after zeroing and shooting yesterday I question whether the ACOG is for me.

TA31F mounted on a 16" Armalite (AR15) I first noticed something odd this past deer season, I took a deer down easily at 125 yards but when I shot at another later in the season at 275 yards completely missed, the deer were patient and were allowing me to walk my rounds in..until they caught on...

So yesterday at the range I checked my zero at 100 yards.. perfect.. shooting at 200 was pretty good.. 300 I couldn't hit the 12 x 12 steel target consistently if at all sometimes...

Using BH Blue Box...

Anyone have any recommendations ??

Link Posted: 3/13/2015 4:29:01 PM EDT
[#42]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By testedone:
This all blows my mind and after zeroing and shooting yesterday I question whether the ACOG is for me.

TA31F mounted on a 16" Armalite (AR15) I first noticed something odd this past deer season, I took a deer down easily at 125 yards but when I shot at another later in the season at 275 yards completely missed, the deer were patient and were allowing me to walk my rounds in..until they caught on...

So yesterday at the range I checked my zero at 100 yards.. perfect.. shooting at 200 was pretty good.. 300 I couldn't hit the 12 x 12 steel target consistently if at all sometimes...

Using BH Blue Box...

Anyone have any recommendations ??

View Quote


Shouldn't the TA31F be zeroed at 100 meters instead of 100 yards? I also think the BDC is calibrated in meters, no?

Link Posted: 3/13/2015 7:05:57 PM EDT
[#43]
yes you are correct, kind of hard to zero at 100 meters when every range I have ever been to is in yards not meters but your point is not lost..
Link Posted: 3/13/2015 7:58:23 PM EDT
[Last Edit: SuperSet72] [#44]
I don't see that much difference when I plug in the numbers into Strelok. Assuming you're talking about BH 68gr Blue Box with BC .272 going 2850fps and a 100 YARD zero, Strelok tells me these are your drops.

Link Posted: 3/13/2015 9:07:09 PM EDT
[Last Edit: testedone] [#45]
I am using Strelok also (Android) my numbers come out a little different.

But, I did go to the range today and was really close to what you show below but I only went out to 300 & 500...


What version of Strelok are you using mine deosn't give me the TA31F, however it does give me - Chevron, Trijicon


Edit - Download Strelok + and I have that reticle

What do you have as scope height I am mounted on a LaRue LT100

Link Posted: 3/13/2015 10:25:23 PM EDT
[Last Edit: SuperSet72] [#46]
I have height over bore at 2.7" (1.2" from bore to rail + 1.5" from rail to centerline of optic).
Link Posted: 3/15/2015 3:13:06 PM EDT
[#47]
I've been using the information posted here since I first found it, but I have a question maybe someone can help with.

I have a TA33 5.56 ACOG and I have it zeroed on a flat-top 16" upper. Everything is good in my life.

But, is there a way I can determine the offset/holds on the reticle if I wanted to shoot 75gr ammo? (note: not zero with 75gr ammo, just shoot it).

Thanks guys!
Link Posted: 3/16/2015 9:37:52 AM EDT
[#48]
Had to call LaRue and Armalite to get the total

LaRue LT100 with a TA31F = 1.63 height over bore

Armalite - Height over bore (flat top) 1.213

Total - 2.843




Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SuperSet72:
I have height over bore at 2.7" (1.2" from bore to rail + 1.5" from rail to centerline of optic).
View Quote

Link Posted: 3/16/2015 10:01:22 AM EDT
[#49]
Thanks for the confirm. It only changed my drops by a yard or so. For your drops, I'm guessing your ammo is slower than 2850fps.
Link Posted: 3/16/2015 10:09:10 AM EDT
[Last Edit: testedone] [#50]
Here is the link for BH

BH Ammo (Reloads)






.223 Remington
36 Gr. Varmint Grenade
Velocity: 3750 FPS
40 Gr. Hornady V-MAX ®
Velocity: 3600 FPS
50 Gr. Hornady V-MAX ® Available in Molycoat
Velocity: 3300 FPS
52 Gr. Match HPAvailable in Molycoat
Velocity: 3250 FPS
55 Gr. Full Metal Jacket
Velocity: 3200 FPS
55 Gr. Soft Point
Velocity: 3200 FPS
60 Gr. Soft Point
Velocity: 3100 FPS
60 Gr. Hornady V-MAX ® Available in Molycoat
Velocity: 3100 FPS
68 Gr. Heavy Match HPAvailable in Molycoat
Velocity: 2850 FPS
69 Gr. Sierra MatchKingAvailable in Molycoat
Velocity: 2850 FPS
75 Gr. Heavy Match HPAvailable in Molycoat
Velocity: 2750 FPS
77 Gr. Sierra MatchKing HPAvailable in Molycoat
Velocity: 2750 FPS




Discussion ForumsJump to Quoted PostQuote History
Originally Posted By SuperSet72:
Thanks for the confirm. It only changed my drops by a yard or so. For your drops, I'm guessing your ammo is slower than 2850fps.
View Quote

Page / 3
Page AR-15 » Optics, Mounts, and Sights
AR Sponsor: bravocompany
Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.


By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
Top Top