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Posted: 7/5/2005 7:52:57 PM EST
can you pls. help me locate sites where there is available data re: .50 trajectory...(external ballistics of .50   etc..)   thank you
Link Posted: 7/5/2005 9:21:42 PM EST
[#1]
There are none. I've been looking myself for about 5 years and they just aren't out there. The best you'll do is get lots of links to ballistic calculators. If you do find something we'd all appreciate you sharing.
Link Posted: 7/5/2005 11:19:36 PM EST
[#2]
2.3" sight over bore
1000' density altitude
Here are two typical loads:


_Bullet_           _BC_ _MV_         0     250     500     750    1000    1250    1500    1750 | YARDS
750gr AMAX        1.050 2660 >   -2.30   -6.47  -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
                                -0.00    2.47    8.92   16.47   25.04   34.75   45.80   58.39 | drop (moa)
                                 0.00    1.99    8.27   19.37   35.94   58.66   88.29  125.60 | wind (inches)
                                 0.00    0.76    1.58    2.47    3.43    4.48    5.62    6.85 | wind (moa)
647gr M33 Barrett 0.701 2900 >   -2.30   -5.18  -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
                                -0.00    1.98    7.78   15.01   23.74   34.34   47.28   63.14 | drop (moa)
                                 0.00    2.68   11.35   27.15   51.49   86.01  132.42  191.90 | wind (inches)
                                 0.00    1.02    2.17    3.46    4.92    6.57    8.43   10.47 | wind (moa)


Give me the bullet, MV, and environmental conditions and I can get more specific data.

Link Posted: 7/6/2005 1:16:03 AM EST
[#3]
thank you very much!!!!     how about the regular .50 BMG military ball ammo specs?   pls. help thank you again!
Link Posted: 7/6/2005 1:46:51 AM EST
[#4]
The latest issue of VHP has a bunch of tables listed, go to the FCSA website to get the info on ordering it and becoming a member.

www.fcsa.org

Link Posted: 7/6/2005 11:51:53 AM EST
[#5]

Originally Posted By paltik:
thank you very much!!!!     how about the regular .50 BMG military ball ammo specs?   pls. help thank you again!


It will be close to the M33 data above.

Like I said, give me a MV, BC, and environmental conditions and I'll get another table...
Link Posted: 7/6/2005 12:05:05 PM EST
[#6]
Link Posted: 10/23/2005 8:46:22 AM EST
[#7]
Do you know what the ballistic co-efficient of the API bullets are?  

Would knowing this allow me to just plug the numbers into any ballistic calculator?
Link Posted: 12/12/2005 3:50:41 AM EST
[#8]
Modern Ballistics has 50 BMG as a default cartiridge.
Link Posted: 1/31/2006 11:48:14 AM EST
[#9]
what would the drop be for a 750 amax out of a 30 inch barrel zeroed in for 300 yrds, give me the drop in inches.
Link Posted: 1/31/2006 12:15:46 PM EST
[#10]

Originally Posted By KevinUSP:what would the drop be for a 750 amax out of a 30 inch barrel zeroed in for 300 yrds, give me the drop in inches.



feel free to download modern ballistics, linked above
Link Posted: 4/15/2006 12:42:37 PM EST
[#11]
I have a barrett 82, shoot mainly surplus/reloaded 690g ap ammo. My scope has a bdc, but the first setting is at 300 yds, where it is supposed to be sighted in. I currently have access only to a 100 and 200 yd range, any idea where my bullets should hit at these distances to be matched zero at 300?
Link Posted: 4/19/2006 6:04:44 AM EST
[#12]
I have the same questions as Kavik, The top of the tree shows 300 yrds.; think the bottom is at 1800

I sighted in by guessing where the 100 mark would be. It would be great to know how high the group would be in inches using the 300 mark on the scope.
Link Posted: 4/19/2006 10:08:59 AM EST
[#13]
If the sight over bore distance is 2.6" (check?), then sight in ABOUT 4" HIGH at 200 yards, using the 300 yard stadia line.  (At 100, it would be ABOUT 3" HIGH).   This should put you "on" at 300 using the 300 yard line.
Link Posted: 4/20/2006 11:43:20 PM EST
[#14]
Thanks Zak! Can't wait to gice this scope a try (it's not the Barrett one!). Made for the Raufoss round, so the bdc dial will be off a bit, but it has intermediate "clicks", so I'll just work dope up -
Link Posted: 8/16/2006 6:35:32 PM EST
[#15]
Id like to see a write up on the differences in velocity and energy between the standard M82A1 and the CQ version using military ball, AP, and API loads out to 1500m or more.  Also like to see how far the CQ version will punch through steel plates at distance.
Link Posted: 11/18/2006 8:31:04 AM EST
[#16]

Originally Posted By Zak-Smith:
2.3" sight over bore
1000' density altitude
Here are two typical loads:


_Bullet_           _BC_ _MV_         0     250     500     750    1000    1250    1500    1750 | YARDS
750gr AMAX        1.050 2660 >   -2.30   -6.47  -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
                                -0.00    2.47    8.92   16.47   25.04   34.75   45.80   58.39 | drop (moa)
                                 0.00    1.99    8.27   19.37   35.94   58.66   88.29  125.60 | wind (inches)
                                 0.00    0.76    1.58    2.47    3.43    4.48    5.62    6.85 | wind (moa)
647gr M33 Barrett 0.701 2900 >   -2.30   -5.18  -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
                                -0.00    1.98    7.78   15.01   23.74   34.34   47.28   63.14 | drop (moa)
                                 0.00    2.68   11.35   27.15   51.49   86.01  132.42  191.90 | wind (inches)
                                 0.00    1.02    2.17    3.46    4.92    6.57    8.43   10.47 | wind (moa)


Give me the bullet, MV, and environmental conditions and I can get more specific data.


Not to doubt you but are you sure that BC is correct? It seems awfully high to me.
Thanks!
Link Posted: 5/14/2007 5:32:26 PM EST
[#17]

Originally Posted By nf9648:
Id like to see a write up on the differences in velocity and energy between the standard M82A1 and the CQ version using military ball, AP, and API loads out to 1500m or more.  Also like to see how far the CQ version will punch through steel plates at distance.


I'll work on that, since I have a CQ and have access to a 107.
Link Posted: 7/28/2007 9:07:04 PM EST
[#18]
If you are doubting the the BC for the AMAX 750 gr, then rest assure that I too looked it up a week ago and 1.05 is correct. As for the 647gr bullet. I do not know so I can not claim or disclaim that this number is correct.


Originally Posted By GaryM:

Originally Posted By Zak-Smith:
2.3" sight over bore
1000' density altitude
Here are two typical loads:


_Bullet_           _BC_ _MV_         0     250     500     750    1000    1250    1500    1750 | YARDS
750gr AMAX        1.050 2660 >   -2.30   -6.47  -46.68 -129.32 -262.20 -454.93 -719.36 -1069.97 | drop (inches)
                                -0.00    2.47    8.92   16.47   25.04   34.75   45.80   58.39 | drop (moa)
                                 0.00    1.99    8.27   19.37   35.94   58.66   88.29  125.60 | wind (inches)
                                 0.00    0.76    1.58    2.47    3.43    4.48    5.62    6.85 | wind (moa)
647gr M33 Barrett 0.701 2900 >   -2.30   -5.18  -40.73 -117.87 -248.63 -449.47 -742.61 -1157.02 | drop (inches)
                                -0.00    1.98    7.78   15.01   23.74   34.34   47.28   63.14 | drop (moa)
                                 0.00    2.68   11.35   27.15   51.49   86.01  132.42  191.90 | wind (inches)
                                 0.00    1.02    2.17    3.46    4.92    6.57    8.43   10.47 | wind (moa)


Give me the bullet, MV, and environmental conditions and I can get more specific data.


Not to doubt you but are you sure that BC is correct? It seems awfully high to me.
Thanks!
Link Posted: 11/8/2007 7:07:43 AM EST
[#19]
Take a look for your self
Hornady
Link Posted: 12/27/2007 2:30:08 AM EST
[#20]
Does anyone know the FPS and ft lbs. of energy the .50 BMG has? Thanks.
Link Posted: 2/26/2008 7:46:44 PM EST
[#21]
Depends upon a host of factors.  I'm shooting Amax's out of a 30" barrel at around 2600 which produces around 11,000 foot pounds at the muzzle.  At 1000 yards the bullet is traveling about 2000 fps with a retained energy of about 6500 foot pounds.

Depending upon the load, you can get substantially higher than that.  Some of the match shooters I know are pushing 800 grain solids at 2900 fps out of 33" barrels with VV20N29 producing a muzzle energy of around 15,000 foot pounds.  Those guys are running right at max pressure so I wouldn't suggest that load for most folks.

I think you'd be safe to say 50 BMG MV run between 2400 and 2900 fps with energies from 10,000 to 15,000 foot pounds at the muzzle.

-David
Edgewood, NM
Link Posted: 5/10/2008 12:13:32 AM EST
[Last Edit: rg1] [#22]
 Ballistic Coefficients of M33 647 ball is approx. .680 and API is .663. All you need to know is your velocity. Check out a couple of on-line free ballistic calculators such as:
www.eskimo.com/~jbm/calculations/calculations.html
 Click on trajectory basic and plug in your data. Or download this free calculator:
www.huntingnut.com/index.php?name=news&file=article&sid=3
This download is PointBlank
Ballistic coefficient of a Hornady 750 A-Max is 1.050
Link Posted: 3/6/2009 9:21:54 PM EST
[#23]
Couple of questions gentlemen,

Since they pertain directly to ballistics / trajectory I figured it would make sense to post them here, versus just starting another topic.

Barrett M33
ZAK, you posted the weight of the M33 as 647 grains. I checked the Barrett website and they list the weight of their M33 as 661 grains. Did Barrett offer M33 with 2 different weight bullets, or did you just use the default Military Ball weight? I have some older Barrett that I pitched the boxes for because they were all torn up, and if they offered 2 different weights, then I am going to have to try and figure out which weight they are.

Summit  
Does anyone have a velocity number for the Summit 690 grain Ball Ammo? There is no ballistic info on the ammo box, and the Summit website is down for improvements. All else fails, I will get on the phone Monday morning to Summit, but I am shooting this weekend, so it would be great if I could a number before Monday. I would assume it is somewhere between 2,600-2,800 fps, but that is a big velocity range to be working with at 1,000 yards, a 50 fps variation is good for 10"-12" at that distance.

Surplus Military
I have the following Weights and Ballistic Coefficients for Surplus Military Bullets, do they seem to be correct / what everyone is using?
Ball 647 grain = 0.670
AP 708 grains = 0.650

Thanks,
Capt Richardson
Link Posted: 3/31/2009 9:06:00 PM EST
[#24]
off topic, are you the Captain Richardson that was in the 76SIB a couple of years ago?  If so, I think your were my husband's PS.
Link Posted: 5/3/2009 11:20:44 PM EST
[#25]
Hi, I am getting a bullet drop of around 38 feet (465 inches) in the MBall and Sierra software using the following data: Magtech/CBC  656 gr, BC .364, Muzzle Velocity 2952. I got the numbers from Cabelas Magtech/CBC 50BMG
and Magtech.com

A 38 ft drop seems awful extreme at 1000 yards. Does this mean this ammo is crap for long range? I have access to it at my local shop and at a very good price. It did shoot a sub 1 MOA group from 100 yds though? I havnt had a chance to get to a bigger range yet so I was messing around with the software trying to get an idea of what i would be dealing with.

So does that calculation seem right?
Link Posted: 5/4/2009 9:33:38 AM EST
[#26]
Originally Posted By shadowskinner:
Hi, I am getting a bullet drop of around 38 feet (465 inches) in the MBall and Sierra software using the following data: Magtech/CBC  656 gr, BC .364, Muzzle Velocity 2952. I got the numbers from Cabelas Magtech/CBC 50BMG
and Magtech.com

A 38 ft drop seems awful extreme at 1000 yards. Does this mean this ammo is crap for long range? I have access to it at my local shop and at a very good price. It did shoot a sub 1 MOA group from 100 yds though? I havnt had a chance to get to a bigger range yet so I was messing around with the software trying to get an idea of what i would be dealing with.

So does that calculation seem right?


Those numbers seem to be pretty goofy,

Ballistic Coefficient - BC of 0.364 seems to be way low, standard BC for Ball Ammo should be in the 0.650-0.670 range.

Muzzle Velocity - 2,952 is a screaming velocity, HSM AMAXs run around 2,680, and Barrett Ball is around 2,750. The max I have ever seen anyone run is around 3,000 and that is considered to be hot.

Standard numbers for "comparable" Ball Ammo:
Barrett M33
Range   Velocity   Time   Energy   Drop    MOA
0              2750        0      11098       0         0
1000        1500      1.48     3302   -351.4  +28.7
Weight = 661 gr / BC = 0.650 approx

Makes me wonder how those numbers could be that far off the norm?

May be worth a phone call to Cabelas or Magtech to see what is up?

Best of Luck,
Capt Richardson

PS: IMHO, if you want to shoot long range accurately, don't waste your time with Ball Ammo. With AMAXs I can shoot 1-1.5 MOA, with Ball Ammo that doubles up to at least 3 MOA.
Link Posted: 5/4/2009 9:36:24 AM EST
[#27]
Originally Posted By MarianLibrarian:
off topic, are you the Captain Richardson that was in the 76SIB a couple of years ago?  If so, I think your were my husband's PS.


Sorry for the late reply,

No I had left "Big Green" by 1994, so it would not have been me.

Capt Richardson
Link Posted: 5/4/2009 10:11:22 AM EST
[Last Edit: shadowskinner] [#28]
Thanks, I guess I just need to get my Chrony set up and see what the correct velocity is for this ammo. I"ve never used a Chronograph and I'm afraid of using it on the Ar50 first time out, don't want to blow it up

Also , yes I have some HSM Amax ammo as well but at $40/box vs $60/box I just wanted to practice with the cheap stuff first. I figured the Magtech CBC stuff for crap but after it shot these two groups (3 shot and 2 shot) from 120yds(I know goofy distance but it's as far as I have at home),  I thought it may be some decent stuff. This was immediately after boresighting my new SS scope too. Only touched the knobs once after that first 2 shot group.

Link Posted: 9/17/2009 6:36:28 PM EST
[#29]
Originally Posted By shadowskinner:
Hi, I am getting a bullet drop of around 38 feet (465 inches) in the MBall and Sierra software using the following data: Magtech/CBC  656 gr, BC .364, Muzzle Velocity 2952. I got the numbers from Cabelas Magtech/CBC 50BMG
and Magtech.com

A 38 ft drop seems awful extreme at 1000 yards NO SHIT!. Does this mean this ammo is crap for long range? I have access to it at my local shop and at a very good price. It did shoot a sub 1 MOA group from 100 yds though? I havnt had a chance to get to a bigger range yet so I was messing around with the software trying to get an idea of what i would be dealing with.

So does that calculation seem right?


I think you missed a digit as I beleve a loaded mag from
my M107 has around 130,000+or- energy blasting out of the full length barrell. Correct me if I'm wrong or misunderstanding something here.  Oh and 38 ft does seem drastic, as  I can see a RO freaking and yell to quit aiming for the jets. Thanks.

Link Posted: 2/16/2010 1:18:08 PM EST
[Last Edit: ridurall] [#30]
A lot of folks here are running shorter barrels.  I'm loading API behind 218 grs of AA8700 and out of the 24" Bohica it's giving me 2478 FPS.  I can push it faster but the groups start to spread out.  As it is at 100 yards I'm getting 5 shot 3 MOA with the API pulled and resized bullets.    I'm looking forward to shooting at at 1000 and on out when the weather warms up a little. Times have changed since I posted this and I'm shooting a 30" barrel.  The .34 BC that some people are getting for the API bullet I believe is a G7 instead of G1.  Don't ask me to explain the difference I just know there is.
Link Posted: 1/18/2011 9:57:07 PM EST
[#31]
Link Posted: 10/27/2012 9:54:15 AM EST
[#32]
Any of you know the best Ballistics Calculator for an iPhone?
Link Posted: 6/13/2013 5:03:02 PM EST
[#33]
Best online ballistics program that I know of:  JBM Ballistics

You can pick the bullet from a database and that will put the correct ballistic co-efficient etc... enter your muzzle velocity and range you zero'd the rifle at and, it will give you come ups and wind drifts etc.  You can copy and past the info directly into an excel spreadsheet and make yourself range cards.
Link Posted: 6/13/2013 5:05:10 PM EST
[#34]
Originally Posted By JohnC76:
Any of you know the best Ballistics Calculator for an iPhone?


I use shooter for android.  Pretty sure you can get it on iphone.  It's pretty good but, you have to enter a lot of data but, the good news is that it can account for just about anything... including if your scope doesn't track exactly correctly.

Link Posted: 6/13/2013 5:07:42 PM EST
[Last Edit: jwoolf] [#35]
dupe: deleted.
Link Posted: 6/25/2013 12:49:54 AM EST
[#36]
Originally Posted By jwoolf:
Originally Posted By JohnC76:
Any of you know the best Ballistics Calculator for an iPhone?


I use shooter for android.  Pretty sure you can get it on iphone.  It's pretty good but, you have to enter a lot of data but, the good news is that it can account for just about anything... including if your scope doesn't track exactly correctly.



I use Shooter for iPhone, and love it.  Does everything I need it to, and more.  Worth the $9.99 cost.
Link Posted: 10/23/2013 7:28:39 PM EST
[#37]

Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 1st-Armored-Division:
I think you missed a digit as I beleve a loaded mag from

my M107 has around 130,000+or- energy blasting out of the full length barrell. Correct me if I'm wrong or misunderstanding something here.  Oh and 38 ft does seem drastic, as  I can see a RO freaking and yell to quit aiming for the jets. Thanks.



View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By 1st-Armored-Division:



Originally Posted By shadowskinner:

Hi, I am getting a bullet drop of around 38 feet (465 inches) in the MBall and Sierra software using the following data: Magtech/CBC  656 gr, BC .364, Muzzle Velocity 2952. I got the numbers from Cabelas Magtech/CBC 50BMG

and Magtech.com



A 38 ft drop seems awful extreme at 1000 yards NO SHIT!. Does this mean this ammo is crap for long range? I have access to it at my local shop and at a very good price. It did shoot a sub 1 MOA group from 100 yds though? I havnt had a chance to get to a bigger range yet so I was messing around with the software trying to get an idea of what i would be dealing with.



So does that calculation seem right?




I think you missed a digit as I beleve a loaded mag from

my M107 has around 130,000+or- energy blasting out of the full length barrell. Correct me if I'm wrong or misunderstanding something here.  Oh and 38 ft does seem drastic, as  I can see a RO freaking and yell to quit aiming for the jets. Thanks.



13,000 per round would be about right. 130,000 might be about right for a 105mm.  

 





Link Posted: 12/7/2013 2:45:24 PM EST
[#38]
By the way I'm using the KAC bullet Flight Military Version 4.2 for my Android RAZR and while I believe I paid around $30 for it I think it's well worth it.
Link Posted: 12/7/2013 3:22:52 PM EST
[#39]

Discussion ForumsJump to Quoted PostQuote History
Originally Posted By shadowskinner:


Hi, I am getting a bullet drop of around 38 feet (465 inches) in the MBall and Sierra software using the following data: Magtech/CBC  656 gr, BC .364, Muzzle Velocity 2952. I got the numbers from Cabelas Magtech/CBC 50BMG

and Magtech.com



A 38 ft drop seems awful extreme at 1000 yards. Does this mean this ammo is crap for long range? I have access to it at my local shop and at a very good price. It did shoot a sub 1 MOA group from 100 yds though? I havnt had a chance to get to a bigger range yet so I was messing around with the software trying to get an idea of what i would be dealing with.



So does that calculation seem right?
View Quote




 
I get 18.75' at 1000 with 750 AMax out of my 32" 99 using KAC Bulletflight.  Depends on your conditions, though.
Link Posted: 12/4/2014 4:48:44 PM EST
[Last Edit: OldmanFCSA] [#40]
Question for you guys with programs.

I shoot 808 grain brass bore-riders out of my AR-50 at 2860 fps (barrel is 34" long, bullets coated with Tungsten Disulfide). Compressed powder charge of V.V. 20N29 heated to 130 degrees F.

Assuming a level barrel, what is total drop at 1000 yards?
Assuming a 100 yard zero, how many MOA to get to 1000?  My guess 24 to 26.
Assuming a 200 meter zero, how many MOA to get to 1000?  My guess 18 to 20.

I normally leave my scope zeroed at 1000 yards with minimal changes for environment, altitude, and coriolis effect.

Any other info you could provide would be greatly appreciated.

THANK YOU in advance.
Link Posted: 1/23/2015 10:51:22 PM EST
[Last Edit: LonnieP] [#41]
Oldman,
Just saw your post here.

I have the shooter app on my phone.  For $10 I thought it was a good tool.
So far it seems reasonably accurate... at least with the .223 rounds I played with.

For a 808gr at 2860fps, using the Lehigh ballistic data is as follows.

100yd zero shows a 212" drop, (20.3moa) & 2071fps velocity at 1000yds.

200meter zero shows a 204" drop, (19.5moa).

Based on 3.375" sight height.

Hope this helps.
Link Posted: 12/26/2015 6:36:59 PM EST
[#42]
JBM has just about everything you'd want for "factory" projectiles - multiple, free, online trajectory calculators, select at http://www.jbmballistics.com/ballistics/calculators/calculators.shtml

As far as calculators (free and for fee), see "Ranging and Target Solution Aids" at http://elr-resources.com/page6.html
Link Posted: 8/30/2020 10:03:39 AM EST
[#43]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Radiant556:

Originally Posted By nf9648:
Id like to see a write up on the differences in velocity and energy between the standard M82A1 and the CQ version using military ball, AP, and API loads out to 1500m or more.  Also like to see how far the CQ version will punch through steel plates at distance.

I'll work on that, since I have a CQ and have access to a 107.
View Quote

Did this ever get produced? I'd love to have that info. I have a 82CQ.
Link Posted: 6/8/2022 9:22:17 PM EST
[#44]
Anyone have data on the following ammo:

-LC M33 ball (660gr)
-LC M17 tracer (643gr)
-Israeli or TZZ API (647gr ?)
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