Tonne of practicing with pest airgun. A good .510 slug runs for $0.60/round (and the shop just closed). Add cost of compressing air, which in my case was running a V8, because 12v 5000 PSI compressor depletes battery in two fills, and it is more like $1 per round. Pretty sure can get NATO...
It's not the same. Archery season comes first, it is often the longest one, you have the best opportunity to harvest game, and depending on the state, you may harvest extra deer during archery season.
Wonder why you want to use .30 PCP for coyotes? In any case it will be more expensive than .22LR, both the cost of rifle and cost of round, but maybe your place permits shooting them with airgun, but bans discharging firearms?
220 in US is split-phase / 4 wires (2 phases, 1 ground, 1 neutral). In EU it is one phase / 3 wires (phase, ground, neutral), sometimes just 2 (no ground...). In US you can combine two regular 110 V phases and make it 220.
Huma-Air offers a superb regulator for big bore Challengers. If Megalodon uses a similar sized air cylinder, you can convert yours to regulated and fill it up to max pressure for greater shot count.
I screwed up my calculations, it's got 610 FPE or 825 J :) I find it amazing the air gun has the ballistics and muzzle energy of a suppressed subsonic sniper rifle. And that you can get it shipped to your door. 957.5 FPS w/ 300 gr slug, at 4300 PSI.
This might be common to all high power AEAs. I had a Challenger .51, its FPS drops when pressure goes above ~4300 PSI. Not that it didn't have power at 4300 (I measured ~650 J!), just the gun is rated to 5000.
Subsonic airgun has a lot of slug drop over 100 yards, which will be a big difference with your .223. Also at 100 yards coyote would even have a split second to jump or lean when the gun shot sound reaches his ears and the slug still travels, which does not add to shot accuracy. Big bore AEA is...
Rifle shoots as good as shooter can shoot it. I'm not the greatest shooter, but look at that: I shot AEA Challenger .510 as good as I did with Ruger American .308, which is known for its outstanding precision! Given that AEA's barrel was bent out of the box and I had to weld a measuring rig and...