It is an Talon/Dor. .257 TJ's bbl, 1 in 14 twist, carbon bottle fillet to 3700 psi. Doug's (Dyotat100) valve.Mad Dog Stock. Zeiss or Athlon Scope. Recon 360 swivel Recon Bipod. , 80 NOE RanchDog HP bullet (Hollow point work by Eric of Hollow Point Services. at 200 fpe. 1/2" or less groups at 100 yard to the point it is almost boring. Huge Neil LDC in place, as it sounds more like a +P .38 or Hot 9mm. Not shooting it right now due to getting over back surgery. It weighs a TON!!! Knife