I would appreciate some input based on experience with the calibers. I may play with the rifle - range, etc. but I am not a "professional user". However, the use can get serious because it also is for SHTF and, that's a couple of types: regularly defined SHTF and the temporary one as I want to have it on my boat when on some longer trips offshore. Right now that's a 12ga. I don't have much experience with the AR-15 platform, especially current - yes, I read the technicalities but that's it. My only real world handling was a "while ago" when they had triangular handguards, the forward assist was "something new" and, I only had to qualify with one as my primary weapon was too large to carry.
Right now I have an AR-30 in .338 Lapua. Yes, big. I got it in a trade and thought it might be useful because of "barricade transparency." Long range is out as I am on the Gulf Coast of FL - not many places one could use that range capability: even a 1000 yd shooting range is problematic in FL. I have got trade offers on it including a RRA M4 - something I would consider ideal for all-around use. My thought was I might trade off the AR30 and its ammo and accessories for an M4 and, possibly a Varmint A2 or similar - main idea being a 20"+ barrel for the few SHTF times I might need some longer range and, an upper in a larger caliber such as .50 Beowulf or even the .338 or .50BMG uppers I see. The only reason I'd look at a second full rifle is I would want the longer 5.56 barrel anyway and would buy the upper but ask myself why not have a spare lower?
Right now I have an AR-30 in .338 Lapua. Yes, big. I got it in a trade and thought it might be useful because of "barricade transparency." Long range is out as I am on the Gulf Coast of FL - not many places one could use that range capability: even a 1000 yd shooting range is problematic in FL. I have got trade offers on it including a RRA M4 - something I would consider ideal for all-around use. My thought was I might trade off the AR30 and its ammo and accessories for an M4 and, possibly a Varmint A2 or similar - main idea being a 20"+ barrel for the few SHTF times I might need some longer range and, an upper in a larger caliber such as .50 Beowulf or even the .338 or .50BMG uppers I see. The only reason I'd look at a second full rifle is I would want the longer 5.56 barrel anyway and would buy the upper but ask myself why not have a spare lower?