个人感觉万金油，拆楼也不错，之前有讨论的贴子，你找下

貌似这个是奇葩的脱壳破甲杀伤弹

尾翼稳定脱壳破甲弹
HEATFSDS

M1A2现在就不用传统的高爆弹，这个M830A1多用途破甲弹就当高爆弹用（也有预制破片）。此外还有专门直射步兵的M1028霰弹，打工事的M908破障弹（可选择触发或者延时引爆，延时引爆用得多，侵彻到混凝土内引爆效果好，美军认为这个对付工事能够取代工程坦克165mm炮的碎甲弹）。这三个弹种都会被XM1147也就是AMP弹（可选择触发、延时或者装定距离空爆）取代。

杀伤半径相对于普通的高爆弹肯定是要打点折扣的，这个是德国dm12破甲弹先搞的，目的应该是简化弹种（国内也有意见如芦继兵认为坦克带穿甲弹和高爆弹两种弹种足够，多了操作不便），不过很明显对于美国来说得等AMP了。这方面英国坦克不算烟雾弹的话，倒是只有穿甲弹和碎甲弹两个弹种，但碎甲弹现在拆房比不上破障弹了。

坦克炮作为直瞄火力是很精确的，现在口径也比较大，用多用途破甲弹或者碎甲弹而不用高爆弹不是不能接受，而且对建筑和轻装甲的破坏效果比高爆弹好。不换，就用高爆弹也没啥，毛子这么多年就一直用的高爆弹。

毛子125炮的BK31破甲弹还是真 破甲弹，真正为了打坦克搞的，串联了3个弹头。
不过就历史来说，坦克兵一般打坦克还是喜欢穿甲弹，初速快，命中率好。破甲弹就火过一阵，主要是那时候对付均质钢装甲破深太猛，法国G弹破深400mm，有这玩意AMX30打T62照脸糊就行了，以色列就更过分了，把这个用在谢尔曼上，搞得谢尔曼也能打T62了。。。

当然对付轻装甲穿甲弹有时候穿深太高，打个透心凉影响后效，破甲弹没这个问题。不过实战中即便是地狱猫那种薄皮车被黑豹一炮穿俩洞多半也还是失去战斗力了，可能死得人少点，谁也说不好。也没听说过哪辆坦克装好了一发穿甲弹，然后看到薄皮车又换破甲弹或者榴弹的。

列个数字:M830A1装药2公斤，毛子3OF26高爆弹装药3.4公斤，英国L31碎甲弹装药4.2公斤。

碎甲弹因为壳薄装药还是很猛的，不过壳薄就不适合高速飞行了，上面三种弹药里L31飞得最慢，M830A1最快。

M830A1初速1400m/s，3OF26初速760m/s，L31初速670m/s，打远距离目标弹道较弯曲（尿尿），靠飞行稳定性好保障命中率。

我来上张无水印原图，外网扒来的

这种炮弹的结构图

外网关于此弹的介绍：
The 120mm M830A1 cartridge is effective against light armor, air defense and materiel. This round is fired from the M256 120mm cannon mounted on the Abrams tank. Appropriate targets include lightly armored vehicles with reactive armor, helicopters, buildings, and bunkers, the side and rear aspects of tanks, and dismounted anti-tank and automatic weapons teams. The fixed round utilizes a combustible cartridge case affixed to a steel stub and loaded with granular propellant. The fin-stabilized, high chrome alloy steel projectile body is press-loaded with explosive, a precision copper liner and booster. The base element is armed during launch and initiated by an impact switch, or proximity sensor, depending upon the operational mode selected by the tank crew. Arming is accomplished through the ballistic environment of firing, set back, and deceleration.
When fired in the air mode, a black puff of smoke is produced when the proximity sensor and fuze function. This permits the crew to observe when and where the round functions in relation to the target.
The production and fielding of the M830A1 provides increased accuracy when compared to the currently fielded M830 HEAT-MP-T cartridge, due to reduced time of flight. The M830A1 provides the individual tank crew with the self-defense capability to engage and defeat attacking helicopter platforms. The M830A1 replaces the currently fielded M830 round to provide significantly enhanced capability to the 120mm gun tank fleet.
Type Classification Date: September 1992. Unit cost: $4,659 (Fiscal Year 2000).
Length: 38.7 in (983 mm)
Weight: 50.1 lb (22.7 kg)
Projectile Color: Black with yellow markings.
Nominal Velocity: 4,626 ft/sec (1,410 m/s)