远程狙击射程卡学习要点

1、long range shooting using the range cardrange card-3.0 5ou5 口 5550口口55 口 5 o 5 7。5 2oj.77。5 5.25 7m 12.4.57-b q2.4 /9.?i.rf g3.k.1 1 1 1 1 2 2 工 3 3 3the rangp card, $cmetrme$ called a cheat cardr is essential tool for use in long range shooting.this card was prepared for a .308 caliber with a muzzl

2、e velocity of 2635 feet per second.2*6 inch site height in an atmospheric condition of 500 feet akitude, 590 f, 78% humidity, h，t dmrd barometnc pressure.这是弹道射卡也被叫做作弊卡，是远程射击必备的重要工具。射卡由外弹道软件创立，其弹头飞行数据排除实际状态下外部环境的影响，如山地上升气流,热气环境导致的目标失真等，此射程卡只记录了特定距离上具备的仰角和风偏数据。在这里这张射程卡是.308英寸口径的子弹，初速为 2635每秒英尺；海拔数据为 5

3、00英尺, 59度的华氏温度，百分之 78的湿度，标准大气压环境29.53帕斯卡using the range cardideany, a specific ringe 8d should be prepared for each atmospheric condition that the shooter may experiencein the simulations, all range cards for each cahbcr arc created far a standard day.(soo feet altitude, s9af,73% humidity).the shoot

4、er will need to mentally adjust for extreme temperatures or altitude (see ballistics classroom)*in this way, the effect of atmosphencs on the bullet i$ graphically displayed.range cardideally,a specific range card should be prepared for each atmospheric condition the shooter mayexperiece一个射手可以随时准备使用

5、射程卡，方便使用。in the simulations all range cards for each caliber are created for a standard day在模拟环境中，创造一个标准环境作为射卡基础数据使用59度华氏温度。500英尺海拔，百分之78湿度.the shooter will need to mentally adjust for extreme temperatures or altitude射手需要心中感受到目标海拔和现场温度见弹道学课堂内容这里通过图表展示子弹的各种数据using the range cardrangij噌/3-一，the elewst

6、ion and windage由门生 i何djelevabon noa1 flnpn inniies心口m咐values for this simulation were200s bu0 31.9calculated using sierra infinity five extenor ballistics softwar?,2502.750.5300 i4.00071 9350s50040 口7.25-1.22.0the elevation is rounded off to the nearest quarter minute for450eoo1 6500：l：，2 a2.112.752

7、.5ease of use.ws-：4 75302 265017.003670019.504,32.375022 0050boq211 5dsa2.4 b5027.256.790030 25762.595 口33 5口e?toaa 36 7&9.b 26这里的仰角和风偏数据是使用sierra infinity 6外弹道软件计算的。这个仰角数据是四舍五入，近似 1/4 角分 moa；以方便大家使用range card期小亚 etevahu 依心）moak 1 m防 mehesead mils)2001 50.j :二1.92502750 53004.0001 93505 5口0 94007 25

8、1 ?20*509 001 650010 752-12 56003.02265017 003670019.sdt 32375022 .do5.0boo 24 50 h24rl65327.256.790030 257 62 595033 50b710003g.759.b26匕using the range cardthe wmd dnft yiven in inc hes is calculated to the nearest tenth of an inch for a 1 mile per hour full-vatlic wind (9 or 3 oclock).therefore, i

9、f you have a 5 mile an hour wind st mny range, the wind drift in inches needs to be multiplied by 5, a 10 mph multiplied by 10, etc这个风偏数据是以英寸为单位来计算的，每小时一英里风在 3点和9点全风速小数点后一位的近似值。所以你要计算每小时 5英里的风任何一个距离下的风偏计算需要用这个数据乘以5,如果是每小时 10 英里就需要乘以 10, 以此类推。尸1long range shooting since the wind dnft is in inches, th

10、e hnal value needs to be converted into minutes of angle in order to adjust the scope setting.range card i.rrsftgc wards)elcvabon moa1 mph inchedlead (mils)2001.5d53192502 7505500星00071 93505.500940q7251 220450001650010 75702.155012.752.5600u753.02.265017 003670019.904 32 375022 0050bod5053? 4b5口27

11、256.79003q25762 5950&da 7ico口36 759.826?风偏单位是英寸但是最后装载瞄必须转换为角分单位也就是moa。每小时5英里的风速在700码上的偏移量：4.3*5每小时5英里=21.5英寸；计算出来的21.5英寸换算成角分 moa: 21.5/7=3.1moa因为100码1moa为1.047英寸近似1英寸，所以700码就是7英寸=1moa所以这个3.1moa就是风偏的数据，所以在密位瞄旋钮上需要调整12滴答。1/4角分瞄long range shooting using the range cardit requires a little more matti to

12、 (jetermtne elevation or windage on ranges in betveen the ranges shown.in the following example an elevation and windage value will be determined for a target at 730 yards with a 10 mph wind.range card-frflftgefie vat 口口1 flnphlek(yards)moaim?心（e加）2001 50031925 02 750.53004.0d0719350s500$4qd7 251.22

13、045q曲m16500iu /b2 口2a55012.752-560014 75302266017.003670019.5 口4 32.375022.0050bod24.505 32.4b5d27.2s6790030 ?5762 595033.503.71dod36.759 378bezj1在实际的射击过程中，所测得的距离如果在射程卡给出的距离之间，如 700-750码，射手需要射击 730码在每小时10英里的风速条件下需要修正的角分using the range card73010 mph windthe value could be obtained by gethng a ballpar

14、k value.lets see . ,.7 30 is just abit more than 725 which is halfway between 700 and 750, so 壮但 elevation is about 20 plus a little tnorej lets 富且y 21,25. and the winddrift is a bft more than 4,6 so letssbyj 4.7 x 10 is 47 inch，range carp一_lfunqt (yardsj- l r jmoa1 mph inchesleade灼2001 500 31.92502

15、75a &3004.000.7193505 500 94007.251 2?o4509州1.650010 75202 1s5012.752.s600u753 d2 265017.00367d3ibm4.32 375022.g5。son24.50502.44b5c27.256.790030 257 a2596033.50b710w36.759.b26moa. 730码，每小时10英里的风速 计算出来的是近似值。“让我们看看。730码正好比中间的725码多一点，它的仰角数据一定比 20moa多，大 概是21.25moa。如果按照这个道理，每小时 1英里的风的风偏数据为 4.7英寸，那么10 英 里

16、 的 风 偏 数 据 就 是 4.7*10=47 英 寸 ”730码。每小时10英里风速 我们计算风偏数据：5.0-4.3=0.7 英寸30/50=0.60.6*0.7=0.42 英寸4.3/0.42=4.72 英寸4.72*10=47.2 英寸47.2/7=6.74 角分 moa6.74*4=27 滴答4 1nlong range shootingusing the range card730 yards, 10 mph windthe ballpark estimate was pretty close, in fact right 0口. with practice the tediou

17、s math caiculatfons won弋 be necessary. 47 q口 1酰 3y4.7 x 10 is 47 inches, ff4,72 x 10 = 47,2 inchesftar-gt:iyards)2d025a30035040045050d550hoq行口700750boo睛q90d的口1(x)0eldvaton 1i nenes 0 3 05 0.71.2 1.620 2.530a 0 5 o q二5。5 5g 5 / o s 2 o 7 7 m 12.4.5 7s.&2.17 00361504j22 005 024.5d5 827 256.7知.257 6335

18、0373a,759.blead(milsj1.91 92.02.2.22 3/ 42 52 &730码 每小时10英里的风速这样的估算数据很接近，实际上是完全可行的，当然我们对于这些单调的计算练习是必须掌 握的。 4.7所以说 4.7*10是47英寸“4.72*10=47.2 英寸long range shooting using the range card730 yard与 10 mph windrange card - ra 3 5-由05|0555|()。疝。5505 口与.7.0(*.2,017,77 os.o15 2.2一 号 rjm 12.1 5 7&.c2.d 702.a7；.

19、3 111112223a- 3now calculate the exact elevation for 730 yards.730码，每小时10英里风速精确计算 730 码需要提高的仰角 moa 数据半速风你可能会预计半速风会是全速风的一半，那么你就错了。事实上完全不是那么回事。half value or quartering5 because the wind is at an any ie. trigonometry comes into the formula for deteimining the 孙inddn仕 for half value winds.三角学理加入了公式决定了风偏

20、数据是3/4和1/2风偏。半速风全速风的数据乘以风向的正弦夹角数据得出了 3/4和1/2风速数据。long range shootingusing the ra： iqe cardhalf value winds.i tie actual values are slightly different due to the component effects of head or tail winds.12:0000sine =101:0014,5030sine =0.514.451:3020.5445。sine =0.70720.432:0025.1260sine =0.86625.023:0028,9090sine -128,904:0024,95120qsine 皿0,86&2564:3020,34135sine =070720.435:0014.37l50dsine =0.514.4