Diamond Infinite 305 Review: A Forgiving Adjustable Compound for Adults

Diamond Archery, Bowtech's value brand, built the Infinite 305 around the same idea as its long-running Infinite Edge: a compound that adjusts across a huge range so that one bow fits a beginner now and a competent hunter later. Compared with the smallest adjustable bows it is a little longer and a little more forgiving, which is why it is often recommended for adults rather than children.

The short version

The Infinite 305 adjusts from a 19-inch to a 31-inch draw length and from 7 to 70 lb of draw weight. It has a 32-inch axle-to-axle length, a 7.25-inch brace height, 77 percent effective let-off and a rated speed of 305 fps, and weighs 3.3 lb bare. Draw length is changed with rotating modules rather than replacement parts.

What the specifications mean

19 to 31 inches of draw length

The range covers the large majority of adults. It starts at 19 inches, so it is not aimed at small children the way the Bear Cruzer G3's 14-inch minimum is, but it extends to 31 inches, which suits taller archers. The rotating modules mean a shop or a confident owner can change draw length without ordering parts.

7 to 70 lb of draw weight

Starting at 7 lb lets a complete beginner learn the shot sequence with almost no load, then turn the limb bolts in as strength builds. The 70 lb maximum satisfies hunting regulations in most places.

32-inch axle-to-axle and 7.25-inch brace height

These two numbers are why the Infinite 305 is often preferred for adults. A longer axle-to-axle tends to hold steadier, and a 7.25-inch brace height is generally considered more forgiving of small release errors than the 6 to 6.5 inches common on compact hunting bows. The trade-off is that the bow is slightly longer in a blind or stand.

305 fps and 77 percent let-off

The speed rating is lower than the Cruzer G3's 315 fps; the longer brace height is part of the reason. In practice, at the 40 to 50 lb settings most new archers use, both bows will shoot well under their ratings. The 77 percent let-off leaves about 11.5 lb in hand from a 50 lb setting.

Who the Infinite 305 suits

• Adults buying a first compound who expect to keep it for several seasons.
• New bowhunters who want a forgiving platform to learn on before considering a flagship bow.
• Taller archers up to a 31-inch draw.

Who should look elsewhere

• Children or very small archers who need less than a 19-inch draw. The Cruzer G3 goes down to 14 inches.
• Target archers who want a longer axle-to-axle still, and a longer brace height, than hunting-oriented bows offer.

How it compares with the Bear Cruzer G3

Read our Bear Cruzer G3 review for the full picture of the alternative.

You can see current Diamond Infinite 305 listings on Amazon. Confirm the hand and finish, and whether a package or bare bow is listed.

Frequently asked questions

Is the Infinite 305 good for a beginner?

Its draw weight starts at 7 lb and its brace height is long for the class, both of which help a beginner. Have the draw length set to your measurement before your first session.

Can I hunt with it?

Yes, at the upper draw weight settings, subject to your local regulations. Pair it with arrows and broadheads matched to the draw weight you actually shoot; see our Gold Tip Hunter XT review for one widely used hunting arrow.

What is "effective" let-off?

Manufacturers sometimes quote effective let-off, which reflects the holding weight you experience at full draw including the cam design, rather than a nominal figure. Treat 77 percent as approximately 23 percent of peak weight held at anchor.