Jason, I take it back about knuckle clearance, its not the driving factor in why the scope was mounted high after all, like I said below. After slo-mowing the video, the bolt's throw angle is adequate for clearing a scope mounted at any height. But Tom's right. See Sierra's reloading manual, or Google the concept of Maximum Point Blank Range (MPBR). The high mounts are provided to maximize this relation of your scope height as your looking through it, to the bullet's path, which allows you to better keep your arc within say, a 12 inch circle, farther out there than if the scope were mounted lower on the gun. Staying within this MPBR, you know you don't have to hold over much, and can still make a clean hit on your quarry. A low mounted scope will exceed this 12 inch arc of travel at a closer range, than a scope mounted higher. A high mounted scope will extend your MPBR out maybe another 50 yards or so. So you need this, and the 20moa rail when playing with heavy bullets and subsonic loads, which drop like a rock out past 150 yards. This gun is truly maximized and well thought out to manage the 300 Blackout's flexibility of bullets. Add a good mildot reticle and a range finder, and you'll have all the tools needed to make an accurate shot with it at distance (judginng crosswinds are another matter).

Well Lee, I don't own one, and can only sympathize for you. But if you don't mind my two cents, I'm a good amateur gunsmith and have an understanding of feeding problems in both ARs and bolt actions. I Googled this issue like you said, and found some posts on 300blktalk.forum of Model Seven owners having these same issues as yours. Interesting. The problem seems to lie in the spring slipping around in the magazine well, which can cause presentation angle problems. And I also see two posts where AAC very quickly jumped on this, having great customer service, and now has a fix for it. It’s a shim placed in the floor plate, that keeps the spring position stable and consistent. Very innovative. AAC was very responsive at fixing this initial teething problem for their customers, as it first arose. So that's the good news on it, and end of story. From my knowledge, bolt action feeding problems mostly stem from mag spring issues such as above, as well as feed rails in need of tweaking, to properly present the bullet for feeding. This is especially true of push feed bolt designs. As far as feed ramp problems, my experience In AR platforms shows the same barrel extension feed ramp used in 5.56 ARs will not do, and must be modified when building a 300 Blackout upper. The feed ramp needs to more accommodate the wider bullet diameter and ogive of the 300 blackout, for proper guidance into the chamber. Then after that, and magazine lips also tweaked, feeding is flawless. And an easier problem to fix I might add, than trying to adapt a steeper shouldered 7.62x39 to feed in AR uppers. And this same feed ramp principle applies for your own Model Seven feed ramp. But your gun shouldn't leave the factory in need of this. Surely they're aware of this difference at AAC. Does your magazine have this shim in it? I noticed that 2 of the above forum posters had feeding problems because they had built their 300 blackout guns from Remingtons of other calibers, and that's why they had to go through these same issues, and were in need of this shim. These guys don't count, as they didn’t' buy their guns stock from the Remington factory or AAC. Well, at least AAC is very strong on support, and promptly addressing their customer issues with this quck fix. Bully for them. And you can see in the video, how the demo gun had no problems at all feeding an entire magazine of rounds. I'm sure it has this shim in it. So these feeding problems are not inherent, and were worked out as this new gun was introduced into the market. Then after that, no more problems in subsequent production guns. Hope this helps. (and No, I don't work for either company and am not a paid blogger)…

I have one of these, and I had to do a lot of smoothing of feed ramp and magazine spring work to get it to feed . It is a poorly made, unreliable design as it binds most ammo, including factory rounds. Remington shows again that they are not interested in quality. I also have a 300 BLK upper S&W and I have it running flawlessly with a variety of sub and supersonic ammo. The Model 7 is really a single shot, if you can get the first one to feed. Google the feeding problems, and you will see I am not alone. The AR 300 upper was less than the Model seven also, and is just as accurate.

Hey, can anyone explain why the barrel is a 1:7 twist? I thought 1:12, or even 1:10 were more than adequate to handle heavier bullets. Why go with a faster twist? Necessary for subsonic loads perhaps?

Yes, I think the choice of scope height was all about not jamming your knuckles against the scope when working the bolt. An easy thing to remedy with a set of lower scope rings which aren't too expensive, if desired. And good point that 7.62x39 is cheaper and more available, but a lot of good can still be said for 300 Blackout. For one thing, it cycles more reliably in a bolt gun's action vs. the more tapered 7.62x39 case, and the magazine can hold a few more extra rounds from its smaller case diameter. And its much more accurate too, specifically designed for American .308 bore diameters. For those reasons alone I'll take the 300 Blackout, though I too wince at the ammo cost nowadays. I've seen some recent 300 Blackout posts here in AR.org, lamenting how every time a new cartridge is introduced, its the best thing since apple pie, and yet the old 30-30 / 7.62x39 equivalents were always branded as borderline hunting cartridges!--lol. I say times have changed. All of these with modern bullet designs are more than adequate at typical hunting blind distances of less than 200yds, beyond which is a challenge to young hunters anyway. For a youth gun that dad can also enjoy and tinker with, occasional hunting rifle, looks like a very good gun. I'm for it.

the scope is mounted high because it is on a 20 MOA mount, which gives you more elevation for long distance shooting. It is a better round than the 7.62 because it can be run under the speed of sound and with a suppressor makes almost no noise at all at subsonic speeds.

I purchased an upper for my AR 15 in 300 AAC - actually 300 Blackout, because I hunt deer in urban, built up areas and want a relatively short range rifle (I now use a .30 Carbine). But what sold me on this one is the availability of subsonic commercial ammo, and my upper came with a threaded barrel to mount the silencer I will buy when I save up enough for it. I have not shot it yet, but am mounting a scope now.

For that price it should come with a suppressor.

@ Jason - It can sometimes help with working the bolt, but it's really just personal preference. I think this is a silly idea though, considering a 7.62x39 is a similar performing round, can be found at almost any retailer, and costs way less.

Why have the scope so high above the barrel? Lower it down some and you won't need that ridiculous cheek piece.