If you want "the most for your dollar", then it becomes critical to define what your minimum acceptable performance actually is. Are you looking for accuracy/precision? If so, how accurate/precise and at what range? Are you looking for higher BC or possibly increased MV? A specific hunting load? When you're talking factory loads, there is literally no "magic bullet". You try several different loads (sometimes many) and find out what your rifle likes or doesn't like, using whatever criteria are most important for the type shooting you intend to do. Then you shop around to find the best possible price you can for one or more of the loads that showed acceptable performance.
With your 12 twist barrel, pretty much any typical factory load up to 175 gr will potentially work. FGMM, Black Hills, CorBon, and Lapua are possible manufacturers to look at. Hornady also makes a couple different loads that might shoot well from your rifle. However (and this is a BIG however), your rifle is going to let you know which brands work and which ones don't. Without more specific info about your rifle, no one here can tell you one way or another which one(s) might perform well. The best you can do is make an educated guess based on how they shot in other peoples rifles, which may or may not be true for you. I've shot many, many rounds of every brand of ammo listed here and I can tell you, regardless of their "general" reputation, some shot well in certain rifles, and in others they did not. The good news is that with any luck at all, you should be able to find one or two that shoot reasonably well in your rifle and can also be found at a reasonable price. You might get better feedback if you told us exactly what your rifle/setup is, in case anyone here has already identified a load that works well in the same setup.
FWIW, if you decide to chrono factory loads to get MV data, I can tell you that you will be extraordinarily lucky to find one that gives you less than 30-50 fps extreme spread, in some cases even higher, and SD numbers in the teens and up. I have chrono'd literally hundreds of each the brands listed and have found this to be the case with a variety of different rifles. The best I have ever found is the Applied Ballistics 175 Tactical load, which for me runs in the neighborhood of 15-20 fps ES and around 10 SD. On paper, the ASYM 175 SMK load should be similar, although I'm currently waiting on some to see how it compares to the AB175s. Neither of these loads is cheap, coming in in the $35.00-$40.00 per box range. Bottom line is that if you want single digit ES/SD numbers for LR shooting, you're going to have to reload your own. Having said that, I've done very well shooting the AB 175s in competitions out to 1000 yd, but it can get pretty expensive if you shoot a lot.
IMO, the best thing you could do would be to try a few different loads, including some that are reasonably priced, and maybe one or two high end match loads like the Applied Ballistics or ASYM. That way, you can have something that performs reasonably and is reasonably priced so you can shoot it a lot, but also have a small amount of the really good stuff for very special occasions.
. I think its double the cost of the FGMM IIRC. I think 50 rounds is around $100 or so - a bit less maybe. While I can get FGMM for around $20 a box. I forget what I paid for the Lapua cases for .308 - but I don't think they were $1 per case...
