From APS Wildcat Information on Facebook
6.5mm Allen Magnum
338 Rem Ultra Magnum parent case, necked down to 6.5mm, fireformed to min body taper and sharper shoulder angle.
168 gr ULD RBBT (still in development)
142 gr. SMK or ULD RBBT at 3450 fps with 142 gr. in 27" barrel, 3550 fps in 30" barrel lengths.
Same design purpose as 257 Allen Magnum but designed for those that prefer the larger selection of 6.5mm bullets.
Appropriate powders: same as 257 Allen Magnum
257 Allen Magnum
338 Rem Ultra Magnum parent case, necked down to 257, fireformed to min body taper and sharper shoulder angle.
100 gr.(4100 fps)up to 156 gr. ULD RBBT(.820 bc) 3350 fps in 30" barrel length
Design purpose for long range pronghorn and deer hunting. Out to 800 yards on heavy deer, 1000+ on pronghorns. Also makes a very effective long to extreme range coyote rifle but a bit hard on pelts
Appropriate powders: H-870, H-US869, AA8700 and WC872
HTH