Gun is 2 months old in excellent condition. Anything lighter than 100 grains breaks the sound barrier.I think this is all the same gun up to the 50 cal. I have shot 105 grain to 168 grain 357 slugs and it's not fussy. This is a true hunting PCP. More specs can be found on You Tube. The item "AEA 357 Challenger PCP Pellet gun" is in sale since Thursday, December 16, 2021.
This item is in the category "Sporting Goods\Outdoor Sports\Air Guns & Slingshots\Air Rifles". The seller is "thistle552011" and is located in Gilmanton, New Hampshire.This item can be shipped to United States.