These weapons are definitely very good. I found the Arzyna .300 to be very good at handling pesky Wild Yaks and Water Buffalo of Sundarpatan. Almost feels and looks like the bigger brother of the Zarza-10 .308. So I'm sure they probably pair very nicely together.
The Strandberg SA10 is probably my favourite Shotgun, it packs an insane punch, taking Class 6-9 down in no time and feels, sounds, and looks fantastic. As well as being very accurate. I even once tested it on a Bengal Tiger, safe to say I ended up with the "This isn't a zombie game" Achievement after quite literally blowing its brains out at 80m. However although I know this weapon pack is mostly for the biggest game, I still wanted to test this Shotguns's Class 4-6 Buckshot, and as I thought the Buckshot isn't the best. I had shot multiple Deer at close range and none had a vital organ shot. So I think it is best to use this Shottie for big game as its designed for that, and stick to your Rifle or other Shotgun of choice when it comes to those smaller class animals.
The .45-70 Jernberg is my least favourite out of the three, but that's mostly due to certain preferences. I'm someone who likes to do follow-up shots, just to double check that the game I'm hunting isn't gonna go far, but the Jernberg is a Single-shot. Meaning If I screw up that first shot, I would not have to time to reload and put in a second one. So that in itself already makes it a weapon I don't plan on using anytime soon, but the times I did use it I also found it to be lacking in penetration. Shot a Water Buffalo at 25m and it only just barely hit single right lung. Now compare that to the Coachmate Lever that use the same bullets, and at the same range I've seen it hit both lungs no problem. I'm sure it probably has something to do with one being a Pistol and the other being a Rifle, but I have no knowledge on guns so I have no clue. I just thought I'd mention that anyway.
Overall I definitely recommend it, as I think each one suit different big game hunters who are after certain hunting methods. Plus the cosmetics are nice as well and I've already decorated the Strandberg nicely and plan on taking it on plenty of future hunts.