armedpolak 4 Posted August 31, 2009 Report Share Posted August 31, 2009 Hi! Please post ballistics of the 5.45 ammo. I just got my 5.45 rifle and I bought Kalinka Optics 4x 400m range finding scope for it with BDC for 7.62 I think. So I wonder how it compares to 5.45. Thanks! 1 Quote Link to post Share on other sites
martilyo 1 Posted August 31, 2009 Report Share Posted August 31, 2009 Here's a link with some basic info: http://www.militaryfactory.com/smallarms/b...stics-chart.asp Quote Link to post Share on other sites
SilentScream 5 Posted September 26, 2009 Report Share Posted September 26, 2009 5 Quote Link to post Share on other sites
Streaker 0 Posted October 24, 2009 Report Share Posted October 24, 2009 Now this is what I am talking about. Great Post!!! Something that everyone can use, no matter what 5.45 you end up with. Quote Link to post Share on other sites
Bucky G 4 Posted October 26, 2009 Report Share Posted October 26, 2009 how does that compare to the 556? Quote Link to post Share on other sites
martilyo 1 Posted November 6, 2009 Report Share Posted November 6, 2009 Thanks for that info, it is extremely useful. Quote Link to post Share on other sites
RoughRider666 47 Posted November 6, 2009 Report Share Posted November 6, 2009 Or you could just get a chronograph and get the ballistics yourself... Quote Link to post Share on other sites
Alwaystryin 0 Posted November 13, 2009 Report Share Posted November 13, 2009 Do you know the Ballistic coefficient of 7n6? Without it the chrono data is not so useful. Or you could just get a chronograph and get the ballistics yourself... Quote Link to post Share on other sites
RoughRider666 47 Posted November 13, 2009 Report Share Posted November 13, 2009 (edited) Do you know the Ballistic coefficient of 7n6? Without it the chrono data is not so useful. Or you could just get a chronograph and get the ballistics yourself... Why is the Chronograph data not so good? its a long process, but wait a few minutes for the barrel to cool in between shots, for accurate and consistent data. Far as the BC of the 7n6, im not sure, you may want to ask Nalioth or Azrial or someone like them... Edited November 13, 2009 by RoughRider666 Quote Link to post Share on other sites
Paulry 50 Posted November 19, 2009 Report Share Posted November 19, 2009 What about the 60 grain bullets? the 60 gr are the current military round Quote Link to post Share on other sites
jamesavery22 54 Posted January 13, 2011 Report Share Posted January 13, 2011 Old post I know... This is one of the few places where someone posted the bullet drop info from the Rusky manual. I found one other place: http://www.ctshooting.com/modules.php?name=Forums&file=viewtopic&p=8732 and supposedly someone posted other 5.45 info on 65grendel.com but that forum is DOA. Anyway... Has anyone ever tried plotting out that data? I'm no graphing expert but those bullet drops and corresponding zero's don't make any sense. Just looking at the 200M zero and 100M zero the initial 0 bullet drop's don't match up. Shouldn't they be the height of the front sight over bore? So ≈-1.8" right? Well neither line up with that. The 200M zero makes it seem the muzzle and POA are both 0. For the 100M zero it looks closer to -0.8 to -1.0 So heres the data I'm plotting: Distance in Meters Zero at 100 Zero at 200 meters (sight set at 2) 0 -1.8 -1.8 50 0 1.2 100 0 2 150 -1.2 2 200 -3.9 0 250 -3.9 300 -9.8 Graph: Curves look funky, don't they? Heres this data: Distance in Meters Zero at 100 Zero at 200 meters (sight set at 2) 0 -0.8 0 50 0 1.2 100 0 2 150 -1.2 2 200 -3.9 0 250 -3.9 300 -9.8 Is the data just wrong or(more likely) I'm screwing something up? Quote Link to post Share on other sites
Dudethebagman 222 Posted January 14, 2011 Report Share Posted January 14, 2011 (edited) Old post I know... This is one of the few places where someone posted the bullet drop info from the Rusky manual. I found one other place: http://www.ctshootin...iewtopic&p=8732 and supposedly someone posted other 5.45 info on 65grendel.com but that forum is DOA. Anyway... Has anyone ever tried plotting out that data? I'm no graphing expert but those bullet drops and corresponding zero's don't make any sense. Just looking at the 200M zero and 100M zero the initial 0 bullet drop's don't match up. Shouldn't they be the height of the front sight over bore? So ≈-1.8" right? Well neither line up with that. The 200M zero makes it seem the muzzle and POA are both 0. For the 100M zero it looks closer to -0.8 to -1.0 So heres the data I'm plotting: Distance in Meters Zero at 100 Zero at 200 meters (sight set at 2) 0 -1.8 -1.8 50 0 1.2 100 0 2 150 -1.2 2 200 -3.9 0 250 -3.9 300 -9.8 Graph: Curves look funky, don't they? Heres this data: Distance in Meters Zero at 100 Zero at 200 meters (sight set at 2) 0 -0.8 0 50 0 1.2 100 0 2 150 -1.2 2 200 -3.9 0 250 -3.9 300 -9.8 Is the data just wrong or(more likely) I'm screwing something up? Well, it definitely doesn't make sense that the bullets in the second chart started from a different elevation. That is, unless this is an actual test where the Russian holding the 100m zero rifle was shorter than his comrade with the 200m zero (or standing in a ditch). It makes sense that the second chart (bullet drop from muzzle) starts at zero. It makes sense that the zero chart starts from the below the aiming point of the sights (at the muzzle) and climbs and drops to the zero (the second time the curved path of the bullet intersects the straight line of the sights) . But it doesn't make sense that a chart measuring bullet drop from the muzzle would start from a point below the muzzle. Edited January 14, 2011 by Dudethebagman Quote Link to post Share on other sites
SilentScream 5 Posted January 14, 2011 Report Share Posted January 14, 2011 Quote Link to post Share on other sites
jgillaspy 24 Posted January 14, 2011 Report Share Posted January 14, 2011 Actually the "0" mark is the line of sight, so the bullet trajectory should start 1.5" to 1.75" BELOW the "0" since the sights are 1.5" to 1.75" above the barrel on an AK. There are a couple of online trajectory calculators available to use for these calculations. If you know the caliber, muzzle velocity and weight in grains this one will work: Ballistic Calculator You will still have to graph it. I found a free installable ballistic calculator but I'm at work now and don't have access to it. Good Luck, JG Quote Link to post Share on other sites
jamesavery22 54 Posted January 14, 2011 Report Share Posted January 14, 2011 Actually the "0" mark is the line of sight, so the bullet trajectory should start 1.5" to 1.75" BELOW the "0" ...snip... Good Luck, JG That's exactly the impression I'm under. SilentScream, thank you very much for posting that page as well as the translations! I'll play with that info. This is just an exercise for me. No real use for the data but it just bugged me that I can't work it out. Quote Link to post Share on other sites
essohbe 47 Posted January 15, 2011 Report Share Posted January 15, 2011 Got a question: Say I set the sights @ a 200m battle zero like an AR. Then this chart applies: Zero at 200 meters (sight set at 2) 50m = 1.2 100m = 2 150m = 2 200m = 0 250m = -3.9 300m = -9.8 Look at the ones I highlighted - they mean bullet drop or bullet rise before the 200m zero? It's rise, correct? Quote Link to post Share on other sites
SilentScream 5 Posted January 15, 2011 Report Share Posted January 15, 2011 Quote Link to post Share on other sites
essohbe 47 Posted January 16, 2011 Report Share Posted January 16, 2011 Gotcha. Cool. Quote Link to post Share on other sites
3rdgeargrndrr 31 Posted September 14, 2011 Report Share Posted September 14, 2011 if anyone needed the specifications of the bullet, for the calculator its these numbers Bullet weight - 3.42 grams (53gr) initial velocity, according to the manufacturer - 870 m / sec (2854 ft/s) Ballistic coefficient: 0.282 i translated the russian from this site using google translator Quote Link to post Share on other sites
rifleshooter474 2 Posted September 14, 2011 Report Share Posted September 14, 2011 Quote Link to post Share on other sites
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