Hi,

I'm entering a competition on Sunday shooting back to 500 yards, I can get a 100 yard zero tomorrow but then will need to 'dial-in' 200, 300, 400 etc, unfortunalty I'm new to this tiny calibre and dont have a clue about its bullet drop, does anyone have a table or data they can mail me at [email protected] ? Its a DPMS with 20" 1 in 9 barrel. Many thanks.

From here: [url]www.ammo-oracle.com[/url]

Here's some Q3131A (M193) ballistic data, of course your mileage may vary:

This is for a 20" barreled AR...

Altitude 1480 feet 70 degrees 50% humidity. 55gr FMJBT Average cD over velocities: .267

Range Velocity Energy Momentum Drop Bullet Path Time of Flight
(Yards) (Ft/Sec) (Ft/Lbs) (Lb-Sec) (inches) (inches) (Seconds)
0 3250.0 1289.70 0.79 0 -1.50 0.000000
25 3161.2 1220.20 0.77 -0.1 -0.79 0.023399
50 3074.2 1154.00 0.75 -0.43 -0.29 0.047458
75 2988.9 1090.80 0.73 -0.98 -0.02 0.072201
100 2905.4 1030.70 0.71 -1.77 0.00 0.097652
125 2823.4 973.30 0.69 -2.83 -0.23 0.123839
150 2742.9 918.70 0.67 -4.15 -0.74 0.150790
175 2663.9 866.50 0.65 -5.76 -1.54 0.178536
200 2586.3 816.80 0.63 [red]-7.68[/red] -2.64 0.207109
225 2510.1 769.30 0.61 -9.93 -4.06 0.236545
250 2435.0 724.00 0.59 -12.52 -5.83 0.266882
275 2361.3 680.80 0.58 -15.47 -7.97 0.298160
300 2288.8 639.70 0.56 [red]-18.82[/red] -10.50 0.330422
325 2217.6 600.50 0.54 -22.58 -13.44 0.363712
350 2147.5 563.10 0.52 -26.78 -16.82 0.398081
375 2078.8 527.60 0.51 -31.45 -20.68 0.433578
400 2011.3 494.00 0.49 [red]-36.63[/red] -25.03 0.470258
425 1945.2 462.00 0.48 -42.34 -29.93 0.508177
450 1880.4 431.70 0.46 -48.63 -35.40 0.547394
475 1817.0 403.10 0.44 -55.53 -41.48 0.587972
500 1755.1 376.10 0.43 [red]-63.09[/red] -48.22 0.629972
(Note: appears 25 yard zero here)

here's my personal come-ups for my rifle:
100 - zero
200 - 1 1/2 min
300 - 3 3/4 min
350 - 4 min
400 - 5 1/2 min
450 - 7 1/2 min
500 - 9 1/4 min
550 - 11 1/2 min
600 - 12 3/4 min
700 - 17 3/4 min
800 - 23 min
900 - no target
1000 - 35 1/2 min
(Note: you'll have to know what your A2 rear sight click increments are, probably 1/4 min. but may be 1/2 min)

Mike

PS - here's another one from here:[url]http://www.handloads.com/calc/[/url]

Range Velocity Impact Drop ToF Energy Drift
0   3200 -0.5   0       0   1251 0
100 2888  0     2.02   0.1  1019 1.29
200 2604 -3.69  [red]8.23[/red]   0.21 828 3.96
300 2339 -12.56 [red]19.62[/red] 0.33 668 8.69
400 2090 -27.82 [red]37.4[/red]  0.47 533 15.82
500 1858 -51.11 [red]63.2[/red]  0.62 422 25.78
600 1644 -84.53 [red]99.14[/red] 0.79 330 39.04

Wow! Thanks for the quick reply, I might stand a chance of hitting something now!