Arrow spine for a 30 lb compound at a 28 inch arrow with a 100 grain point: a 700 spine (band 600-700), plus the 150 grain minimum weight. Sourced.
Updated 05 September 2026.
What arrow spine for 30 lb draw at a 28 inch arrow
The starting spine for a 30 lb draw at a 28 inch arrow with a 100 grain point, and the weight floor.
| Draw weight | 30 lb |
|---|---|
| Arrow length | 28 in (cut, nock groove to shaft end) |
| Point weight | 100 gr |
| Recommended spine | 700 (published band 600-700) |
| Minimum total weight | 150 gr, from the 5-grains-per-pound floor |
Easton 5mm Axis carbon arrow shaft (700 spine)
Shop Easton 5mm Axis carbon arrow shaft (700 spine) on AmazonaffiliateFind Easton 5mm Axis carbon arrow shaft (700 spine) on eBayaffiliateField notes
A 30 lb draw at a longer 28 inch arrow flexes so little that a very weak 700 spine is the right pick, weaker than the 600 a shorter 26 inch cut would take. Light bows at longer draws still stay in the weak band.
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 28 inches and 30 pounds, or bare-shaft test before cutting a dozen.
Whatever spine you land on, keep the finished arrow at or above 150 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 30 lb draw at a 28 inch arrow?
For a 30 lb draw at a 28 inch arrow with a 100 grain point, start with a 700 spine (the 600-700 band), and keep the finished arrow at or above 150 grains total.