Arrow spine for a 75 lb compound at a 30 inch arrow with a 100 grain point: a 300 spine (band 250-300), plus the 375 grain minimum weight. Sourced.
Updated 05 September 2026.
What arrow spine for 75 lb draw at a 30 inch arrow
The starting spine for a 75 lb draw at a 30 inch arrow with a 100 grain point, and the weight floor.
| Draw weight | 75 lb |
|---|---|
| Arrow length | 30 in (cut, nock groove to shaft end) |
| Point weight | 100 gr |
| Recommended spine | 300 (published band 250-300) |
| Minimum total weight | 375 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
A 75 lb draw at a 30 inch arrow sits at the top of the heavy band; the long cut holds it at a 300 rather than a stiffer 250 that a very heavy point would demand. It is a heavy-draw elk and moose setup.
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 75 pounds, or bare-shaft test before cutting a dozen.
Whatever spine you land on, keep the finished arrow at or above 375 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 75 lb draw at a 30 inch arrow?
For a 75 lb draw at a 30 inch arrow with a 100 grain point, start with a 300 spine (the 250-300 band), and keep the finished arrow at or above 375 grains total.