What kind of sling are you using now ?
For Western hunting:
Kifaru Gun Bearer. Is only about 4oz, much lighter than most all slings as many are over a pound. It's also faster than most slings once practiced. KUIU also makes a copy, but it completely sucks and they went too light and flimsy on the butt stock holder. It is hard to get the rifle in or out fast and quietly with the KUIU version.
Note that I am running it kinda backward to tuck the bolt in and to keep the muzzle vertical. Unlike many slings, the rifle even with the long barrel of the magnum is not above my head to catch on shit and tucked in tight. It also frees both hands and allows me to use two hands to scramble or move through the brush or glass. As a side benefit, I'm not having to take the rifle on and off my shoulder constantly.
FWIW I've also ditched the bipod and shooting sticks and flimsy carbon spotting tripod and actually am carrying less overall weight even with my dual-purpose TVC-33 RRS tripod. That has been a game-changer. The carbon hiking sticks are only 10oz for the pair. Stack an Elk quarter and some tenders and straps in the load-shelf and you'll love the poles!
For PRS:
I am still using a Rifles Only sling. They are not cheap at $130 (2x the cost of the gun bearer) and are really heavy.
@koshkin and @Glassaholic
On paper, the new 4.5-20 looks like the optic many of us have been waiting for. Locking turret, capped windage, FFP, illumination, great reticle and uber lightweight; all good but the FOV at 23' is rather crappy compared to the 41' of a PST.
I love the Vortex warranty, but dang, I've personally had 3 PSTs and a Razor lose their turrets AKA lose their zeros, as well as seen a lot of friends have similar issues. I still have a PSTII on my 22LR Vudoo, but no longer trust them for hunting rifles. To me, it seems at least where we hunt CO, Wyoming, and CA, hunting rifles put way more strain on scopes than match guns. They travel long miles some on rough-ass dirt roads, maybe a horse or side-by-side tossed in, packed, bumped, banged, and then shoot from super light magnum rifles; so durability is a huge issue. I've currently switched several rifles to the MK5 and they seem to hold up well for a lightweight FFP illuminated optic. That said I'd love to drop 5oz but is it worth it??
How do you guys think the robustness will compare to an MK5? Obviously, I have serious trust issues. What has vortex done to beef up their robustness over lines like the PSTIIs while still losing so much weight?