The very first rule of navigation is KEEP THE WATER OUT OF THE BOAT!! There have been some notable failures of that in the realm of monkeydom.
Went bouncing through the waves at high speed and every thing bounced over the side and cracked three stringers!
If you can't keep the water out of the boat you just need to start with something that can handle the rust damage. gives a nice non slip surface to the slide. She still shoots one ragged hole in the target at 10 yards. My tetanus shot is up to date. Hey, that may be a good name for this one. ;-) "Lockjaw" Try this with your Glock and get back to me in.... lets say 50 years.
Sometimes you have to make due with what you have or can afford; read religiously about what you have (including the ammo), and make plans to cover for the weaknesses. AND, Be sure to reserve enough resources to feed the critter! Practice with it. I'm partial to .22LR, 5.56/223, 308, and 9mm, but just because they're commonplace and inexpensive, among other things. You can find inexpensive AR-15s; take care of what you have so you can sell it later on if you want something else. 7.62x39 is also commonplace and inexpensive - I've gone the AR route for personal reasons, but I'm not going to say one is better than the other (there's enough fighting in this world already;^). Keep an open mind; .45-70 might work for you because all your friends shoot it!
in 10,000 years the archaeologists are going to be real confused they will think that was a gun boat or river patrol boat.
Since all the anti-gun rhetoric has come up consideration for lever action rifles is becoming more popular. In the old west The lever action was the assault weapon platform of the day. We may be seeing a resurgence of the lever action rifle and thats a good thing,
