The 308 is one of America’s favorite rounds. It has a long service history with the Armed Forces and an even longer history in the hands of sportsmen.
The 308 Winchester round is a full powered rifle round that began the trend of short action, full-powered calibers. The 308 is designed for moderate to long range shooting and can reach out to 800 yards.
Now to reach out to 800 or even a 1,000 yards with any kind of regularity or efficiency you’ll need a few things. The first is a good load of 308. One that’s consistent and accurate.
The second is a good rifle. One that shoots straight, and is made for accuracy.
The third, arguably most important is a good piece of glass. A good scope makes a big difference and will be one of the most important decisions you’ll make. Not everyone needs to reach out to 800 yards.
The 308 Winchester is a fantastic round for any range at or below 800 yards. You’ll still need a good, high-quality scope to reach out and touch your target.
With tons of optical options out there choosing a reliable scope can be tricky.
Luckily, you came to us. We’ve gathered the 8 best scopes for 308 rifles.
Primary Arms FFP
Vortex Optics Diamondback
Primary Arms 5X Prism Scope
Eotech 552 XR308
Nightforce Optics SHV
Best 308 Scopes for Long Range
The Nikon M-308 is a fantastic choice at an excellent price. If you can’t guess by its name the Nikon M-308 is designed for the 308 Winchester round. It’s designed for long range engagements and provides shooters with a very simple to use ballistic drop reticle.
A ballistic drop compensating reticle is a reticle that’s designed around a specific round. What it does is compensate for drop over different distances. This gives you scope integral points of aim out to specific ranges.
The Nikon M-308’s BDC reticle goes out 800 yards. If you are shooting at targets at 500 yards away, you simply place the 500-yard reticle portion on the target and pull the trigger. If you have some basic shooting skills you’ll hit that target.
The Nikon M-308 is a high powered optic with a variable magnification that ranges from 4 to 16 power. The optic utilizes a 42mm objective lens, which allows you to keep the scope mounted low and still be big enough to provide a crystal clear picture.
The Primary Arms First Focal Plane scope is a powerful optic that is an excellent option for long range hunting. The Primary Arms FFP utilizes their own ACSS Orion reticle that’s tuned specifically for hunting deer, hogs, and coyotes.
The round is also calibrated to the 308 caliber round, which makes taking those long range shots precise and deadly. The first focal plane nature of the scope means the measurements for the BDC and built-in rangefinder are accurate regardless of the magnification level.
The Primary Arms FFP is also backed by a variable magnification that ranges from 4 to 14 power. It utilizes a 44mm objective lens for a clear and consistent picture. This is likely the most affordable FFP scope on the market.
The Primary Arms FFP scope also utilizes ¼ MOA turret clicks, which are slightly larger than I’d expect for a long range scope. That being said they are still adequate when it comes to hunting. The built-in rangefinder takes some practice, but is simple to figure out, and quite reliable.
The Vortex Diamondback is a premium scope that comes at a great price. The Diamondback is a shockproof, waterproof, fog proof, rugged and ready scope designed for the great outdoors. Vortex’s commitment to quality and durability is one of their best selling points.
It’s not there only selling point though. The Diamondback offers 3.1 inches of eye relief so the recoil of the big 308 isn’t going to give you scope eye. The scope also offers a 4 to 12 variable magnification range but remains compact and lightweight.
This is the scope you need if your idea of a good time is hitting the trails bright and early to hunt the local fauna. It’s rugged, lightweight, and precise. The Deadhold BDC offers shooters a multi-caliber BDC that a shooter will have to dial in themselves.
Some may consider this a downside, but to me anytime I need get to send lead downrange is a joyous occasion.
The Tactical Options
The ACOG series of rifle optics are some of the most dependable and reliable optics every created. Trijicon serves with the United States Marines, and United States Army, and has for most of the war on terror. This particular model is designed for the 308 and is perfect on rifles like the M1A, the AR 10, and other designated 308 tactical rifles.
The Trijicon TA55A is a 5.5 power ACOG that takes advantage of the 308’s long-range capabilities. The large 50mm objective lens also helps create a nice wide field of view and gives shooters a nice clear picture.
The ACOG does utilize a BDC and is dialed all the way out to 1,200 meters. Hitting something at that range takes some real skill, but with this optic it is possible. The ACOG makes use of tritium and fiber optics to provide you with an automatic adjusting illuminated reticle.
The ACOG is a pricey optic, but man it is a tank.
If the ACOG is priced a bit high for you, but you like the idea then the Primary Arms 5X Prism scope may be the perfect optic. This 5 power optic utilizes a very similar design. It's a fixed power optic and incorporates a 308 BDC.
These scopes do utilize batteries over tritium and fiber optics. You have 5 different brightness settings and two options for reticle color. You can choose between red and green reticles. Green is easier to pick up, but red is easier to see in brighter environments.
The Primary Arms Prism scope is affordable but built to last. Its thoroughly tested and made to stand up to the mighty recoil of the 308 caliber round. It’ll also take a beating in the usage department.
The Primary Arms Prism scope is an exceptional optic designed for tactical, or action shooting competitions. This is the best option for those on a budget.