String Creep: Causes, Effects & How to Fix It

String creep is permanent, non-recoverable elongation of a bowstring — meaning the string returns to a longer length than it started after being shot. This is distinct from stretch, which is recoverable elongation: the string returns to its original length after each shot. Understanding the difference matters because the fixes are different.

Causes of String Creep

Several factors can trigger bowstring creep:

• Improper bow tuning: A bow that isn't tuned correctly for your draw length and arrow type puts uneven stress on the string, accelerating wear and elongation.
• Incorrect bow grip: Gripping the riser too tightly transfers pressure to the string, disrupting the draw cycle and contributing to inconsistent string behavior.
• Inconsistent release: Varying anchor points, finger placement, or release technique can cause the string to shift forward before the shot breaks — a form fault sometimes also called creeping.
• Bowstring stretch and wear: Over time, strings lose their ability to hold position. On compound bows, archery string creep causes measurable changes to brace height, draw weight, draw length, and cam timing — pushing the bow outside the manufacturer's specifications.

How to Detect String Creep

The primary diagnostic is brace height — the distance from the deepest part of the grip to the string. A drop in brace height is the clearest sign that string creep or settlement has occurred. Measure with a T-square bracing gauge clipped onto the string. Because bowstring creep affects both brace height and nocking point simultaneously, always check both together. For more on this measurement, see our glossary entry on fistmele, the traditional term for brace height.

How to Prevent and Fix Bowstring Creep

Shoot In a New String

New strings settle quickly. Shoot them in immediately or leave the bow strung overnight so the initial elongation stabilizes before you set your brace height.

Add Twists to Restore Brace Height

If brace height has dropped due to string creep, add twists — approximately two twists raises brace height by about ¼ inch. Recheck after each adjustment.

Maintain Consistent Form

Work on a repeatable anchor point and release. A correct draw length for your body reduces string stress and limits form-based creeping at full draw.

Replace Worn Strings

Inspect your string regularly and replace it when it shows wear or fails to hold brace height after twisting. Choosing a low-creep material is one of the most effective long-term solutions. Browse archery equipment basics to understand how string choice fits into your overall setup.