I have mostly Pulsar in thermal scopes, with one Trijicon Reap and a DJI dual enterprise thermal drone. The Trijicon is still the standard as far as resolution goes, but there are other companies now matching what Trijicon can do, at a slightly lower price point. After hunting hogs in Alabama and Georgia for 8 years I have concluded a couple of things. The 640 resolution is well worth the extra money, although 320 will get you started in thermal at a much lower cost. Resale value is almost nil with 320 scopes these days.
Extra batteries are a must, along with a means to charge them in the field. 12 volt chargers work fine, although they're slower than a 110 volt.
One scope probably won't be enough. One on the gun still leaves you without a way to scan, so you either buy a second scope or a handheld scanner. There are a lot of good used pulsars available for a decent price. Check the thermal and night vision pages on Facebook.
I have tried hunting hogs with current generation night vision, the good stuff, and it can't compare with thermal. If I could only have one, it would be thermal. It's very difficult to hide from a thermal scope. It can be done, but the slightest slip with your cover and you are revealed. It's been an expensive education but well worth it in the end.
