This info is kinda jumbled..but you can figure it out.
Axis Traditional Carbon Shafting Specifics
Spine Point GPI Length Insert Nock Carbon
Collar
Nock
Collar
600 9/32" 7.9 30 ½" 75-50gr X E --
500 9/32" 8.9 31" 75-50gr X F --
400 9/32" 9.8 31 ½" 75-50gr X F --
340 9/32" 10.3 32" 75-50gr X G --
Straightness ±.003" Weight ±2gr
Adjustable 75-50gr brass HIT inserts
Beman MFX Classic Arrow Specs:
340 - 11.2 gpi., uses 9/32" diameter field point, BAR6 Broadhead Adapter Ring
400 - 10.4 gpi., uses 9/32" diameter field point, BAR5 Broadhead Adapter Ring
500 - 9.7 gpi., uses 9/32" diameter field point, BAR5 Broadhead Adapter Ring
600 - 8.0 gpi., uses 17/64" diameter field point, BAR3 Broadhead Adapter Ring
Adjustable 75-50gr brass HIT inserts
Beman CenterShot™ Carbon Shafting Specifics
Spine Point GPI Length Insert Nock Carbon
Collar
Nock
Collar
600 9/32" 7.1 30 ½" 75-50gr H A A
500 9/32" 8.3 30¾" 75-50gr H L --
400 9/32" 9.6 31" 75-50gr H B B
340 9/32" 10.3 31½" 75-50gr H C C
Straightness ±.003" Weight ±2gr
Pre-installed H Nocks
HP 75/50 Brass Break-Off Inserts- included
and..for about half the price of the other skinny shafts...
Easton ST Carbon Excel Shafts
* Straightness: +/- .003" Guaranteed max
* High-strength, carbon–composite fibers
* Weight tolerance: +/- 2.0 grains
* Black, micro-smooth finish
Size Weight Spine Length RPS
500 7.3 gpi 0.500 30 7/8 9/32
400 8.6 gpi 0.400 31 3/8 9/32
340 9.5 gpi 0.340 31 7/8 9/32
300 10.0 gpi 0.300 32 3/8 9/32
"H" Nock - Installed; ST RPS Inserts included