为啥老莫比较容易炸膛？

Kyukouka

长话短说啊，新买了一把1939年的莫辛，想想快80年的铁棍了，而且是二战前的金属冶炼机加工技术，还是毛子货，老实话，想想54R 60000多PSI的膛压，竦了，不敢打。

网上找弹药的时候，随便那么一搜索，一堆劳模爆炸的照片跳出来，吓坏了。

想请问一下用过的同学和熟悉苏制武器的高手们，老莫为啥这么容易出事故，人的原因还是物的原因，有啥措施可以预防或者一旦出事把损失减到最小？

谢谢了。希望大家多提建设性意见。
以下图片是网上搜索来的。

QuiMi

摸心拿肝爱炸膛？没有的事。毛子的枪最大优点就是结实。不可能比其它枪更容易炸膛。

毛子的子弹有可能毛糙，碰到一颗受潮的蛋蛋把子弹送到枪管中间，硬打下一发必定炸膛。什么枪都包不住。

Kyukouka

QuiMi 发表于 2016-9-23 15:30
摸心拿肝爱炸膛？没有的事。毛子的枪最大优点就是结实。不可能比其它枪更容易炸膛。

毛子的子弹有可能毛糙 ...

听你这么一说安心多了。

你说的这种情况应该第一发能听出来不对，谢谢提醒！

Colt1911

所以一定测headspace，太紧了合不上闸，太松了容易炸堂。

Colt1911

Headspace is measured in different ways on different calibers. For a rimmed cartridge such as the 7.62x54R (where R stands for “rimmed”) headspace is the distance between the bolt face and the face of the chamber where the loaded cartridge rests. In a rimless cartridge such as a .308 the headspace is measured to the shoulder of the cartridge. This dimension is important for proper and safe firearm function regardless of the type of cartridge being checked. Too little headspace will not allow the bolt to fully close rendering the weapon unable to fire. Too much headspace can cause excess chamber pressure, as a result of the cartridge not being held firmly in the chamber on firing. This can be particularly dangerous given the chamber pressures generated by centerfire rifle cartridges..

Headspace gauges generally come in 3 sizes:

GO: measures the minimum acceptable headspace. This size is most often used when re-barreling or re-chambering a firearm.

NO-GO: This gauge is used to check for excessive headspace. If a firearm closes on the NO-GO gauge it is an indication that the weapon MAY not be safe to fire. Reloading ammunition for a firearm that fails NO-GO can result in unsafe loads due in part to the expended brass being elongated as a result of not being firmly chambered. Most military surplus firearms that pass NO-GO (the bolt will not fully close on the gauge) are considered safe to fire with either surplus ammunition, or with modern loads that may or may not be intended for reloading.

FIELD: A firearm failing the NO-GO spec can be tested on the slightly more forgiving FIELD gauge. Military chamber specifications are generally looser than commercial firearms, giving them a bit of tolerance for adverse conditions such as dirty chambers, weather extremes, etc. A firearm passing FIELD spec (not closing fully on the gauge) is generally considered safe to fire the ammunition it was designed to fire, i.e. military surplus ammunition of the designated caliber.

These are to be considered GENERAL GUIDELINES and are in no way intended to be an assurance of the safety of a particular firearm. If you have doubts about a firearm’s safety and usability you should have it checked by a professional gunsmith.

gongzi-Z

赞最后一张照片

moses80h

之前有一次拿了家里收藏的91/30去打，因为刚刚打完AR10，脑子一抽就直接把308win的子弹放进去，一扣正常发射出去拉枪栓抓不出弹壳才发现用错子弹了，庆幸没炸膛。

oldben

如果有一个放置了80年没用过的空煤气罐，不经过探伤打压，估计工厂不会往里灌液化气。

GGY

莫辛拥有量how many ？炸膛how mamy ？答案nine cows one hair

Jena

QuiMi 发表于 2016-9-23 14:30
摸心拿肝爱炸膛？没有的事。毛子的枪最大优点就是结实。不可能比其它枪更容易炸膛。

毛子的子弹有可能毛糙 ...

是的，squib load非常危险

孤单幽游

lalirui

我也放心了。。新买了个1923年的摩辛。。。还没打过

Kyukouka

多谢各位的回复，安心了，再被炸，就是该着了。

graycat2006

Kyukouka 发表于 2016-9-24 17:39
多谢各位的回复，安心了，再被炸，就是该着了。

老莫从1891年生产到50年代，生产了1700万支。目前市面上的都是苏联兵工厂重新翻新封存的。 放心用吧。

Philippshen

Mosin Nagant Torture Test
Iraqveteran8888


https://www.youtube.com/watch?v=gfiXFyIbOZw

chevoodoo

第一次听说。
大部分炸膛还是和子弹有关。

Kyukouka

Philippshen 发表于 2016-9-24 21:13
Mosin Nagant Torture Test
Iraqveteran8888

看了两遍，还有那个续集。非常感动，尤其是看到那个装满48格林的手枪高爆药的桥段。。。

这个枪每个人都应该拥有！

友直谅多闻

Kyukouka 发表于 2016-9-25 09:07
看了两遍，还有那个续集。非常感动，尤其是看到那个装满48格林的手枪高爆药的桥段。。。

这个枪每个人都 ...

搞把M39吧。

我手头不少189X年的Mosin，都刚刚的，没问题。

另外，底缘弹的头壳间隙从底缘开始，定位和肩部无关，其实不容易出问题。

Kyukouka

友直谅多闻 发表于 2016-9-26 11:12
搞把M39吧。

我手头不少189X年的Mosin，都刚刚的，没问题。

M39想要啊，太贵了，399，我能找到的。

我最近研究了一下，也算是搞清楚了这个54R的headspace问题，正如你说的。我现在在用PPU的铜壳自己复装，先用308的弹头玩玩看看能散到什么地步，然后再上311弹头。谢了！

sunfire

Kyukouka 发表于 2016-9-26 12:15
M39想要啊，太贵了，399，我能找到的。

我最近研究了一下，也算是搞清楚了这个54R的headspace问题，正如 ...

几千刀的精射枪都舍得买，399的M39却哇哇叫了

赶快买吧，到时我们可以交流一下。