Skip to main content

点二二不适合自卫的原因

发信人: doublepar (shoot straight), 信区: GunsAndGears
标  题: 点二二不适合自卫的原因
发信站: BBS 未名空间站 (Sat Jan 21 11:22:01 2017, 美东)

第一，威力足以杀人，但不够 immediate incapacitation ，歹徒中枪两个钟头以后再
挂掉对你自卫的即刻需要没有一点作用，他现在仍旧有能力伤害你的生命。
第二，点二二的力量小，给半自动手枪滑套后座抛壳复位进弹的冗余度就小，所以，点
二二卡壳 (fail to eject) 的机率很高，特别是用中低速弹的时候，或者枪机枪膛稍
有点脏的时候，没碰上过完全是因为打得太少。第三，点二二弹是有底缘的，对弹匣以
及装弹的要求高得多，要求上下两颗弹之间前后排列不能有一点差错，一不小心就会造
成供弹不畅(fail to feed)。
第四，点二二弹头一般不光滑，复进簧力量弱，进弹有时会出问颢，造成 fail to
feed。
第五，点二二是边缘发火弹，底火不在中间而是在底缘的一圈里，制造子弹时是用旋转
的方式把底火药物用离心力分布在底缘里，所以常有分布不均的情况，就是一边打不响
，退出来转一个方向就能打响了。
第六，点二二的枪还有个问题是大多没有撞针保险，而且因为底火在边缘，是受到
breech face 挤压的，本身就不安全，哪怕不被撞针碰。这种是掉在地上不扣扳机就可
能响的，安全性差。
这些问题在靶场打着玩都无所谓，真到了要拿它自卫时都是会要命的。
Labels:

Comments

Post a Comment

https://gengwg.blogspot.com/

Popular posts from this blog

OWASP Top 10 Threats and Mitigations Exam - Single Select

Last updated 4 Aug 11 Course Title: OWASP Top 10 Threats and Mitigation Exam Questions - Single Select 1) Which of the following consequences is most likely to occur due to an injection attack? Spoofing Cross-site request forgery Denial of service   Correct Insecure direct object references 2) Your application is created using a language that does not support a clear distinction between code and data. Which vulnerability is most likely to occur in your application? Injection   Correct Insecure direct object references Failure to restrict URL access Insufficient transport layer protection 3) Which of the following scenarios is most likely to cause an injection attack? Unvalidated input is embedded in an instruction stream.   Correct Unvalidated input can be distinguished from valid instructions. A Web application does not validate a client’s access to a resource. A Web action performs an operation on behalf of the user without checkin...
2 comments
Read more

CKA Simulator Kubernetes 1.22

  https://killer.sh Pre Setup Once you've gained access to your terminal it might be wise to spend ~1 minute to setup your environment. You could set these: alias k = kubectl                         # will already be pre-configured export do = "--dry-run=client -o yaml"     # k get pod x $do export now = "--force --grace-period 0"   # k delete pod x $now Vim To make vim use 2 spaces for a tab edit ~/.vimrc to contain: set tabstop=2 set expandtab set shiftwidth=2 More setup suggestions are in the tips section .     Question 1 | Contexts Task weight: 1%   You have access to multiple clusters from your main terminal through kubectl contexts. Write all those context names into /opt/course/1/contexts . Next write a command to display the current context into /opt/course/1/context_default_kubectl.sh , the command should use kubectl . Finally write a second command doing the same thing into ...
Post a Comment
Read more