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The Diamond Edge 320 is one of Diamond’s premiere bows, and it’s got some very unique features. The Bowtech Binary Cam System is one of the most important aspects of this bow, and it’s often overlooked—partially because people seem to be most interested in Diamond’s most popular bow, which is the Infinite Edge.
- Powered by Bowtech's Synchronized Binary Cam System for arrow velocity of 320 fps
- Adjust draw length from 15 to 31 inches long
- The limb system allows for adjustability from a mere 7 lbs to a heavy impacting 70 lbs
And that’s a shame. The Edge 320 has got some really impressive specs, and it’s one of those “mid-range” bows that actually performs with some of the functions of a “high-end” bow. We’ve reviewed the Edge 320 elsewhere (and there’s a link at the bottom of this page that goes to our review), but here are the Diamond Edge 320 specs, along with some quick commentary:
Draw Length: 15 to 31 inches
Diamond’s big effort over the last decade has been adjustable bows for the mass market audience, and this is one of their most adjustable bows—15 inches is good for young ones, but 31 inches is actually pretty generous, and makes the bow usable for folks up to 6-foot-6-inches tall. Most of Diamond’s bows caps out at 30 inches, so this is a nice inclusion.
Draw Weight: 7 to 70 Pounds
Believe it or not, the Diamond Infinite Edge —perhaps their most popular bow—has a broader draw weight range, from 5 pounds to 70 pounds, but 7 pounds to 70 pounds is nothing to sneeze at. That’s good enough for just about anyone, and younger archers shouldn’t have a problem pulling 7 pounds (especially with the excellent let-off, which we’ll discuss below).
70 pounds is on the high side—there are heavier pulls out there, for sure, but not many on adjustable bows, and if you’re a bowhunter, 70 pounds is good enough for most (if not all) North American game.
IBO Speed: 320 FPS
There are many faster bows you’ll find out there, but not many in this range—most of the bows that shoot faster are specialty, high-end bows. 320 FPS is getting up there, and it is (at the time of this post), one of the fastest bows in the Diamond line (and it’s also the reason for the name—”320″). Keep in mind, your results may vary—this is the fastest the bow will shoot, but you have to have the draw weight dialed all the way up to 70 pounds to reach that type of speed.
Brace Height: 7.25 Inches
This, along with the axle-to-axle length, is an interesting measurement, because it makes the bow a little larger than some of other models in the Diamond line (most of their other bows have a 7-inch brace height). Longer brace heights tend to provide some “give” and can help you with imperfections in your draw cycle—the only problem is that they can slow the arrow down a little bit. That’s not a problem here, as this is (currently!) one of Diamond’s faster bows, so we’re not sure how they did that. Good job, fellas!
Axle-to-Axle Length: 32 Inches
This is also a little longer than other Diamond bows. A longer axle-to-axle length is commonly believed to give a bow some accuracy—but it can make it difficult to carry around (and bowhunters spend a looooot of time carrying their bows around). If you want your bow to be as squat as possible, you may want to find something in the 31-inch and under range (and the Diamond SB-1 is 31 inches).
Mass Weight: 3.6 Pounds
This, too, is a little heavier than other Diamond models, which usually clock in at about 3.2 pounds. 3.6 isn’t too bad in the grand scheme of things, and that .4 pounds isn’t the end of the world, but if you’re into ultralight gear—and the camping/hiking/hunting world has gotten obsessed with the ultra-light movement in recent years—there are lighter bows out there.
Effective Let-Off: 85%
This is the other real highlight of the Edge 320: the let-off. 85% is very impressive. This, too, is the highest let-off (currently!) of a Diamond bow, and if you’re shooting from a draw weight of… well, of any weight, really—an 85% let-off can provide a lot of comfort.
There’s one other spec that we should mention, that people often overlook—and it’s funny, because it’s one of the most important features on any compound bow: the cams. The cams on the Edge 320 are actually a huge step forward for the bow, because they feature Bowtech’s Synchronized Binary Cam System (Bowtech is the company that has ownership of Diamond products).
The cams are bound to one another so that they move in synchronicity, creating an even draw cycle with a flat nock trajectory. In bows where the cams aren’t synchronous, the nock can travel up and down as the bow string moves forward, and that can mess with your accuracy, so the Synchronized Binary Cam System is actually a really feature of this bow, that often get overlooked when people are discussing the specs.
The Edge 320 is another offering from Diamond we like a lot, and you can check out our Diamond Edge 320 review here if you’re interested. Thanks for reading, have fun, and happy archery!
- Powered by Bowtech's Synchronized Binary Cam System for arrow velocity of 320 fps
- Adjust draw length from 15 to 31 inches long
- The limb system allows for adjustability from a mere 7 lbs to a heavy impacting 70 lbs
