What Will Gamo Big Cat 1250 Air Rifle Be Like in 100 Years?

https://manuelfnms245.skyrock.com/3323519150-This-Week-s-Top-Stories-About-Air-Gun-Blog.html

A gun is a ranged weapon normally made to pneumatically discharge projectiles[one] which are solid (most guns) but will also be liquid (as in water guns/cannons and projected drinking water disruptors) or perhaps