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Our Diamond Deploy SB Review

Diamond doesn’t offer the widest range of bows, but all of their models are (in our experience!), solid, reliable choices. The Diamond Deploy SB is, no doubt, a high-end bow, and Diamond states quite clearly on their website that the Deploy is the "most technically advanced bow" they've ever manufactured. That's some big talk, so how does the Deploy actually rate?

Diamond Archery Deploy SB LH 50# Breakup Country RAK (B12685)
  • Aerospace inspired carbon riser
  • Binary Cam System
  • Easily tunes and adjusts for draw length and let off

Below, we’ll jump into our Diamond Deploy SB review, and take a look at the features—and the features that set this apart from other bows—and see how they add up. There’s no doubt, this is a high-quality bow—and a standout in the already-worthwhile Diamond line—but let’s take a closer look and see how it plays out.

Diamond Deploy: Features

The first thing that strikes us about the Diamond Deploy SB is that some of its features are adjustable. For the longest time, a high-end bow was—well, it was what it was: if you bought a model with a 50-pound draw weight, then that's what you got. Adjustability wasn't an option for most high-end bows. But the deploy actually has a few features that are adjustable, including...

The Draw Length. It's adjustable anywhere from 26 inches to 30.5 inches, and while that's not the widest range in draw length, it's definitely do-able for most users—that draw length should fit men and women anywhere from 5-foot-4-inches tall to 6-foot-4-inches tall, and that's probably most of us.

The nice thing about an adjustable draw length is that you can fit it to your own personal measurements when you buy it—but you can also give it away or sell it when you want something new, and the receiver can adjust it to his/her personal measurements.

The Draw Weight. The bow is manufactured at 50, 60, and 70 pounds—good enough for most North American game—and it's adjustable up and down 10 pounds from the model's top weight. In other words, if you buy the model with a 70-pound draw weight, you can adjust it down to 60 pounds; if you buy the 60-pound model, you can adjust it down to 50 pounds.

Having a bow where you can increase the draw weight is good—when you gain strength, you can increase it for more powerful shots—but it's also nice to be able to decrease that draw weight sometimes. Some of us old timers don't pull as hard as we used to 😉

It's worth noting that according to the owner's manual, the bow performs best when it's at its peak draw weight of 70 pounds. It should still operate just fine at any of the other draw weights, but it's "maximum efficiency" mode is at 70 pounds.

IBO Speed. At a 330 FPS, that's about as fast as they come in the Diamond Line. You can find plenty of crossbows that shoot faster, but you won't be able to find too much compound bows that shoot faster. Not at present, anyway. That's an incredible leap forward for Diamond, and it's probably the most impressive aspect of this bow. 

Mass Weight. This is another area where the Deploy stands out: it's *really* light. Many bows fall in the 3.5-pound and above range, so 3.2 pounds is pretty darn reasonable. That makes it a good option for spot-and-stalk hunting, where you'll need to lug your bow (and everything else you brought) all over creation, but it also makes it a good option for extensive practice.

Axle-to-Axle Length. At 31.5 inches, that's just enough to provide speed and accuracy. As a general rule of thumb, the longer the bow, the more stability it can provide—and therefore the more accuracy—but you don't want a hunting bow to be TOO tall, otherwise you'd have a difficult time maneuvering it at go-time. As with so many things related to bowhunting, it's a trade-off, and 31.5 inches is juuuuuuust where we'd want it to be.

Let-Off. This is the other "high-end" feature of the Deploy: let-off of 80%. That's getting up there. Most mid-range bows have a let-off of about 75%, and it gets very difficult to manufacture a bow with higher let-off without affecting other aspects of the bow. It's actually not the highest let-off in the Diamond line (the Edge 320 has a let-off of 85%), but 80% is still pretty solid.

That let-off is because of an aspect of the bow that we feel deserves its own section:

The Shape of the Cams

This is, perhaps, the most important aspect of the bow, and our Diamond Deploy SB review wouldn’t be complete if we didn’t look at it.

Diamond is currently owned by Bowtech, and many Diamond bows include Bowtech gear. The Deploy features the Bowtech Binary Cam system, and that system is actually one of our favorite aspects of this bow.

If you take a good look at the shape of the cams on this bow, you'll see that they're ovoid, like eggs. That shape was actually a jump-forward in the evolution of cams, and if you look at the original compound bows (here's one below with, yes, Captain Kirk), you'll see that the cams on it are just about totally round (and pretty small, too):

You didn't think you were going to run into a photo of Captain Kirk, did you! Well, here we are.

It makes sense that the original compound bows feature round cams, because those are what pulleys use, and compound bows are basically designed off a pulley system. That ovoid shape is a "next-gen" development, because it does a lot of things, including: 1) it allows for a higher let-off—in this case, 80%.

Once those cams snap back into place, that's when your let-off is achieved (and it also affects that back wall, as well); and 2) it increases the FPS. Those ovoids create a catapult-like effect that rockets the arrow forward, and it's one of the ways a compound bow can reach FPS speeds of more than 300 feet per second.

If you compare the cams on a high-end bow like the Deploy to the cams on a mid-range bow like the Infinite Edge, you can see how the Infinite Edge's cams are more round:

So that's one of our favorite aspects of the Diamond Deploy SB—those aggressive cams.

Here are some other features we think warrant their own section:

The Shape of the Riser

If you look at the counter of the riser, you'll see that it juts forward aggressively—that's one of the features that allows Diamond to decease the brace height of the bow (which, here, is 6.75 inches). A shorter brace height is an advantage, because it increases the FPS measurement, which is kind of the "holy grail" for most hunters.

 An arrow that can travel with more speed will arrive at game quicker, and that game will have less time to react. And, not for nothing, but that aggressive riser and those near-parallel limbs—they make it feel more like a hunting tool. That's totally subjective, for sure, but we're suckers for design like that.

One other thing we like about the riser: the grip is molded for easy holding in the hand. That's a nice touch, and when you're out in the wild, it's small features like a molded grip that can increase your odds of success. It obviously doesn't make your shots a sure thing, but we think it helps a little.

Here's the last thing—well, second-to-last—thing we like:

It's R.A.K. Equipped

You'll probably see that term thrown around a lot when it comes to Diamond bows, and it refers to the gear that a RAK-equipped Diamond bow comes with: a bow sight, an attachable quiver, an arrow rest, a 5-inch stabilizer (long enough to eat some vibration, but not so long as to catch on things in a hunting situation), and wrist sling, BCY string loop, and peep sight on the string.

You can get all that stuff on your own—and for many of us, that's part of the fun of things—but it sure is nice when those things come included, especially for those of us who in that beginner-about-to-jump-to-intermediate range.

OK, the last thing we like:

The Name!

What does "Deploy" mean? From Diamond: "It’s time to deploy maximum impact." Excellent!

Final Thoughts on the Deploy

This one is a thumb's up from us. We're big fans of Diamond equipment, and as this is one of their higher-end bows, we think it can be a great option with proper tuning and practice.

Diamond Archery Deploy SB LH 50# Breakup Country RAK (B12685)
  • Aerospace inspired carbon riser
  • Binary Cam System
  • Easily tunes and adjusts for draw length and let off

Good luck, have fun, and happy hunting!

Gregory Johnson

With almost 20 years of archery experience under his belt, Gregory founded the Complete Guide to Archery website in 2019. His purpose has been to spread knowledge about the hobby and sport to anyone willing to learn.