Help me with this thought process. I just cant put my finger on why a 30 Nosler for a 20" bbl? I seen you have talked about it but the case captivity is more conducive to a 26-30" bbl. I don't see where your going to gain anything over even a .308 Win.
I am not bashing, I am really not. Just trying to figure this out. I am heavily looking at 28 Nosler and there are a few guns in 24" bbls and I can't quite get myself to even look at those due to the wasted velocity potential of the longer 26" bbls.
Lifelong WY hunter myself and I think the 28&30 Nosler and Wyoming are a match made in heaven. I want a lightweight 28 to compliment my heavy .340 Weatherby.
Well, a .308 win simply won't push a 215 grain bullet at 2900+ no matter the barrel length, powder used, throating or any other consideration, it doesn't even compare. A 20" 30 nosler will, with several powders. And yes, you will have a 100% burn rate. If you do research, even in large cases with slow powder, most of them have 100% burn in under 16" of barrel. The remainder of the barrel just allows the pressure more time to impart velocity upon the bullet.
I explained my reasoning a couple times in the first few pages of this post in detail, I will do it again though, as those were somewhere between page 1 and 6, and may not be convenient to find.
This is made as a compact, supressed backpack rifle. It, along with all my gear to hunt for 3-10 days, depending on the hunt, will be carried on my back. It will have a folding XLR light weight magnesium chassis with a carbon stock, and a supressor hanging off the end of the barrel, adding significant weight forward, as well as length. I have packed 14 lb guns with fixed stocks and 30" barrels on hunts like this, and it flat sucks. These chassis are already light in the rear, making them a little front heavy. Throwing on a 26-30" barrel, even a light carbon barrel, then another 9" of supressor and forward weight, makes for a ridiculous 35-39" barreled, front heavy, unwieldy gun to pack, and also would make it set very light in the rear support and require a lot of cheek pressure or downward pressure with the hand and will not be very steady or comfortable to shoot.
I don't care one iota if I am not getting 100% capability of the 30 nosler cartridge, that is not a requirement nor a concern in any way, shape or form. I care about how the gun handles, packs, shoots, and performs. It is a purpose driven gun for my intended use, not one built to look cool to all my shooting buddies and go in line with what the general shooting community may name as a "requirement". A 200-215 grain bullet, going 2900ish fps or so, will be solid 1000 yard+ capable elk performance. I don't care what the cartridge pushing it is, it doesn't need to give anyone the warm and fuzziness but me.
This gun will be hearing safe to shoot, under 40" WITH the supressor attached in my pack, around 9.5 lbs or less ready to hunt, WITH the supressor, will be comfortable to shoot, and will carry a .30 cal bullet with 1,800+ ft-lbs of energy to 1000 yards. If you know of a better way to accomplish ALL those benchmarks, then I'm all ears brother!