Talk:Survival Knife/@comment-100.16.106.100-20160814212949/@comment-75.97.16.91-20170212102030

You apparently have never fired a real firearm under water and know nothing about ballistics. I have no idea where you got this 18 inch nonsense. Even with standard ammo you can easily get 5-10+ foot or so range out most firearms underawter (a lot less if you fire "nto water from above the surface tho). Even a Glock 17 or Mark 23 pistol loaded with standard NATO ball will blow a hole in a 1/2 inche pinewood board underawter at around 10 foot. Many Special Warefare groups specificaly use them to dispatch sharks regularly.  Get some supercavitating ammo as well and it will let you accuratly shoot out to 15 meters with a 5.56x45mm and 25 meters or so with a 7.62x51mm. You also have numers firearms designed purposly for underwater use like the P11 pistol which is accurate out to 15 meters underawter.  For reference a handheld speargun general only has an effective range of 2-4 meters.