I know that my 700 VLS is certainly to heavy for a calling gun. It weighs about nine and a half pounds with the 26 inch heavy bbl and over ten and a half with scope and sling and ammo.
I couldn't find an LTR at the Remington Web sight, but did find a heavy barrel fluted rifle with a synthetic stock was the Model 700 VS SF II and it weighs 8.5 pounds.
I guess it would depend on how far you walk to get to your sets and how much weight you mind carrying. I have a CZ 527 Varmint in 204 Ruger and used to shoot and carry a Ruger #1B in 243. The Ruger weighed about the same as the VS SF II and the little CZ Varmint with a 25.5 medium heavy barrel comes in at 7.2 pounds less the scope and sling.
To tell the truth I like a lighter gun. Off a sitting bi-pod or shooting sticks even a sporter weight rifle makes a good calling gun. The heavy bbl's work better when shooting prairie dogs or ground squirrels, but it never slowed down my hunting partner with his old Winchester 220 Swift.
Some of the new Remingtons are extremly accurate and some are not. Quality of Remingtons is seemingly so-so anymore. Most of mine are good to excellent, but I'm on three other forums and hear folks complaining. I've been a Remington 700 fan for a long time, but If I was going to buy a new varmint rifle today I'd probably look at the CZ first and the Savage second and Remington third for a new gun.
I just went thru the buy a new gun thing cause my grand daughter got the Ruger #1 for Christmas and my choice ended up the CZ. It's shooting dime sized groups at a hundred and the 204 shoots as flat as any 22-250 or Swift I've owned. Kinda the best of both worlds thing along with the fact I can see the hits, or better yet the misses, when I'm shooting it. Right now the CZ is the most accurate gun in the safe and well surpasses the Rem heavy bbl VLS.
Groups with the new 527.
I've got a few friends whom shoot Savages and all are extremly happy with the way they shoot also. If your a die hard Remington fan then that's the way to go, but if your interested in pure accuracy perhaps there are some better bangs for your buck than the Remington and I'm a Remington fan.