I guess it's my turn, and I'm a little reluctant in writing this because I know I'm going to get a lot of grief for what I say. Here goes nothing....
2 months ago I wanted to get into air rifles. I've been a powder burner (is that what they call it?) for 40 years. I'm 66. I researched the hell out of air rifles on Youtubes and was convinced that the break barrel Gamo Gen 2 Swarm with silencer was the ticket. Hell, these guys on Youtube were hitting a dime at 100 yards, right? Cost me over $300 and the only good news is, I bought it on Amazon with a great return policy (you can guess where this is going). It even came with a scope - I got the 22 caliber model. My son and I own and shoot everything there is; AR-15 platform, hunting rifles, shotguns, hand guns, etc. He's ex military, I'm just an avid shooter. So you can understand my confusion when we unboxed this thing and couldn't get the accuracy dialed in. So, I did what I always do. Watched more Youtubes!
All of a sudden, I noticed a similar thing on almost all the videos. As they shot, there'd be what they call "A Flier'. That's a pellet that's so far off target it's embarrassing. Oops, that's a flier, they'd say. Then, I learned of something called the "Artillery hold". Yep, it seems that because of the Nitro - spring - impact - jerking - and whatever else you want to call it, you can't hold any break barrel firmly. As I understand it, it has to kind of 'float' in your hands, free to move around as you pull the trigger. I thought to myself, "what kind of crap is this?" I have to 'learn' how to shoot a rifle again after all these years? That's BS. (Sorry).
By the way, KitCarson16 is absolutely spot on when he described this issue.
Oh, one more thing. The other instruction you'll get after you buy a break barrel and can't figure out how to get the accuracy is that you have to shoot hundreds of rounds through it before it 'settles down'. And don't forget, the break barrel has to 'Like' the kind of pellet your shooting.
Bottom line. If you get a break barrel and the accuracy is crap, do the following:
- Start buying all kinds of different pellets
- Don't hold the rifle tight, let it 'float' in your hands, and for god's sake, don't let the butt of the gun even touch your shoulder.
- Continue to shoot it more, keep shooting, keep shooting, no not yet, it's got to break in.
- At some point, you'll question your own skill and ability and think there's something wrong with you.
- Almost forgot - watch more Youtubes.
- Read posts from other members that will tell you they can hit the eye of a crow at a thousand yards (sorry)
- Read posts that will tell you that you just didn't pay enough and you need to buy the break barrel that 'they' own.

- Return it for a full refund.
I hope that was a humorous as I intended it to be. The best thing you can do is what you're already doing. Ask this forum for opinions because this forum has got me 100% to where I am today. These guys know a whole lot more about air guns than I'll ever know.
So, I'm not going to tell you what you should do, but I'll tell you what I ended up with and I absolutely love it. I think it fits all your criteria too.
I bought the Benjamin Maximus on MidwayUSA for $145 a month ago. This forum told me about the deal. Although that deal is gone now, I see today that Pyramyd Air has it for $229 in stock. I got the 22cal. It is much louder than I expected for backyard shooting so I bought a silencer (moderator?) from TMK's website. Only $50 including shipping. It is made for the Maximus, it slips right over the barrel tip and is secured with a set screw. No need to have threads on the barrel. Honestly, it is so quiet I can't believe it. I also bought the most popular / least expensive hand pump on Amazon I could find for about $60. The Maximus pumps up to 2,000psi and takes no more than 40 pumps to go from low to high which gives you about 25 to 30 shots. It's really easy to pump, I swear it doesn't even take 2 minutes. So for the rifle, pump and silencer, you're just over $300.
Let's talk accuracy. All of a sudden, I guess I know how to shoot after all. The accuracy is fantastic. I'm not going to tell you some crazy example of how far I hit something. I'm just saying, if you've shot 22lr rimfire rifles, or any other rifle with a scope, you'll be very amazed at how similar the accuracy is with this rifle. Not really far shots, but I'd say 30 or 40 yards you'll be hitting what you aim at. And guess what? After the first tin of 500 pellets? For some reason, I haven't had a single 'Flier'.
So there you go.
I'll get ready for the arguments for what I said about the break barrel. I know, I know. I don't know what I'm talking about. I don't know how to shoot. I didn't give it enough time. I don't buy the right pellet. I didn't clean the barrel before I shot it. I didn't hold it right.
All I know is I'll never buy another break barrel, PCP is absolutely the way to go - and by the way, cold weather doesn't affect PCP rifles - and funny thing. For everything I didn't know how to do right with the break barrel? I took the Maximus out of the box, put a cheap scope on it, pumped it up, and 5 shots later it was zero'd in and shooting accurate.
One more thing. I like your pick for the Marauder. The only reason I didn't pick that rifle was that it's a 3,000psi rifle, it's pretty expensive compared to what I bought, and I didn't want to get into an air compressor if I didn't have to.
Hope this helps. Good luck!
And don't stop asking questions and sharing your experiences with this forum. They're great guys (and gals?), and have been nothing but helpful for me.