I am not going to give you an answer in a way you are asking the question. Because I don't think comparing the design of a Blaser rifle is really a good comparison to another rifle. What I mean is I'm going to get on here and say, "I have a Blaser and the TRG lost". That is simply not the case. You can insert any make in the "TRG" and I would say the same thing.
Frankly I have been playing with some Blaser rifles for about a year and a half. I initially started with a hunting version since I liked the switch caliber capability. Hunting is an endeavor where certain rifles can sit for a while. At least for me. And at least for "special" or big hunts. So…I entertained the idea of a switch caliber. Normally I don't consider them since I am an unabashed, and complete accuracy snob. But those Blaser guys swore up and down I could get a hunting caliber rifle that was VERY accurate.
So….I gave it a chance. Messed with it. Ignored some of the rifle's criticisms from others and formed my own opinions.
Took a while….but I was completely thrilled with how well they shoot and are configured.
So…..since I come from the tactical side of the room, I started to open up my mind to looking at the Tactical 2 as a potential buy "one day". You see, when they first came out, I saw a pic of it (long before I ever knew what a Blaser was) and said something like, "Great. Another 20# bull-$#!T rifle designed by guys who never hump their gear". And promptly ignored it.
Now that I have an idea of what a Blaser is and how it works, I started to look more closely at the Tactical 2. Oddly, it's not heavy at all. Might be an issue with it being too light were I to get it in 338, but a break and or a suppressor is probably a must anyway.
I have one in 308. And like all Blasers, they are weird. They look weird. Etc. Etc. etc. But slowly, I started to actually see the thought put behind the stock design of the tactical 2. Carrying it in the field. Position shooting. Ambidextrious operation. Loading a bi-pod. Shooting with rear bags. Shooting off a pack. They really got it down.
One thing on the Blaser it "seems" they have figured out pretty well is the cold-bore shot. It "seems" so far, that the barrel doesn't shift when heated up. I suspect that is because the barrel isn't torqued intro an action and the barrel is crazy-floated (as opposed to just free). It cools symmetrically so doesn't get pulled up. At least so far.
I think they are neat. I think they are fast. And so far, seems VERY good. But….I reserve the right to change my mind at anytime should something change. My Identity isn't attached to my gear.
The TRG has a great rep. It's expensive and the parts are expensive. The Blaser isn't popular in the United States. (In Europe, it's huge in sales numbers. I keep hearing number 1). It's expensive and the parts are expensive. Maybe even more so than a TRG even.
If you get a Blaser, you WILL be "That guy with the weird rifle". How you react to that is up to you.
For me….I'm loving the straight pull for it's fantastic speed. Ease of cleaning since to all pulls apart, including the barrel. And accuracy.
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Here are some pics of me testing it with 175 ASYM 308 ammo.
https://tacticaltshirts.com/asym-308-175-grain-ammo-100-yards-sig-sauer-blaser-tactical-2-rifle/
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Since it was shooting so well and meet my function standards, I "decided" to keep it. Which mean's it needed to be painted since Black sticks out like a sore thumb in the field.
https://tacticaltshirts.com/home-camo-job-on-your-rifle-sig-sauer-blaser-tactical-2/
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Here is some cold weather / cold bore shot / position shooting I did in cold weather.
https://tacticaltshirts.com/cold-weather-zero-testing-blaser-tactical-2-308-asym-175g-ammo/
TTR