|
发表于 2013-3-22 23:09:07
|
显示全部楼层
Selous
[quote]您说的很对,采用延迟滚柱闭锁的枪都很准,不仅有著名的G3还有swiss sig510,奇怪的是这两种枪都在加拿大被禁了。这两种延迟滚轴闭锁的枪在90年代都遭遇了相同的命运被活塞导气式给取代了,网上资料显示后者可靠性更高而且加工成本更低。请问下Selous兄有何见解?
:D :D :D
哈哈,SauerSafari 兄,
小弟對於 Heckler & Koch 的延遲滾軸閉鎖的準確性,是從使用 HK 的步槍射擊之中親身體驗到的,因此對這設計十分欣賞, 但是當然,沒有設計是十全十美的,這設計可能機械部件大多和複雜,所以成本高和很難維修?
還有是槍膛鎖閉糟很易收聚污垢,所以如果要保持槍械功能不發生故障,要常常保持槍械清潔?
哈哈,拋磚引玉,希望有高人能為 SauerSafari 兄更清楚的解釋這問題?
哈哈.
:D :D :D[/quote]很高兴能和Selous兄探讨枪械原理。我一直在寻找最坚固耐用且精度甚好的自动步枪。这里是小弟查到的部分资料关于Roller Delayed Blowback 优缺点:
Advantages:
The barrel can generally be free floated, since there aren't any moving parts up front. This is unlike a gas operated mechanism, where part of the mechanism is hanging off one side of the barrel and disturbing the natural harmonics of the barrel. Free floating the barrel increases the accuracy of the weapon.
Unlike the straight blowback mechanism, this one can use higher powered ammunition.
When used with suitable ammunition that is designed for the weapon, this is a pretty reliable design.
Moderately cheap to manufacture.
Disadvantages:
This design definitely doesn't like wide varieties of ammunition. It is sensitive to factors such as the weight of the bullet or the type of case. Therefore, the ammunition used for this weapon needs to be good quality and manufactured to uniform standards, otherwise it could cause operating issues.
This is a design that can get dirty very quickly while using. It is fairly easy to clean up though.
It is a relatively complex system compared to some other designs, such as the AK-47 mechanism.
The locking delay can go down as the parts begin to wear out, chamber gets dirty or clean etc.
Cannot be tuned by a user, unlike a gas-operated mechanism with a regulator is.
从上面的资料来说没有活塞导气式可靠,比较挑子弹,著名的PSG-1在美国也有些水土不服。下面链接片头就是最明显的对比:HK 121 vs MG3
https://www.youtube.com/watch?v=tQYngk6fpIg :lol: :roll: |
|