Arrow spine for a 65 lb compound at a 30 inch arrow with a 100 grain point: a 300 spine (band 300-340), plus the 325 grain minimum weight. Sourced.
Updated 05 September 2026.
What arrow spine for 65 lb draw at a 30 inch arrow
The starting spine for a 65 lb draw at a 30 inch arrow with a 100 grain point, and the weight floor.
| Draw weight | 65 lb |
|---|---|
| Arrow length | 30 in (cut, nock groove to shaft end) |
| Point weight | 100 gr |
| Recommended spine | 300 (published band 300-340) |
| Minimum total weight | 325 gr, from the 5-grains-per-pound floor |
Easton 5mm Axis carbon arrow shaft (300 spine)
Shop Easton 5mm Axis carbon arrow shaft (300 spine) on AmazonaffiliateFind Easton 5mm Axis carbon arrow shaft (300 spine) on eBayaffiliateField notes
The same 65 lb bow with a longer 30 inch arrow flexes one step more than the 28 inch setup, moving it from 340 into the 300 range. Length raises the spine you need at a fixed draw weight.
Spine is a starting point, not a guarantee, because a 340 from one brand can differ from another. Confirm on your arrow maker's chart at 30 inches and 65 pounds, or bare-shaft test before cutting a dozen.
Whatever spine you land on, keep the finished arrow at or above 325 grains total, the 5-grains-per-pound floor, so the bow is not shooting dangerously light.
The rules behind this pick
Questions and answers
What arrow spine for 65 lb draw at a 30 inch arrow?
For a 65 lb draw at a 30 inch arrow with a 100 grain point, start with a 300 spine (the 300-340 band), and keep the finished arrow at or above 325 grains total.