Personally, i feel like the Garand would work better as a Zerker/Sharp crossperk, seeing that it's probably the best choice for a bayonetted rifle in KF2
Damage-wise, I can see it being a bit stronger than the SCAR-H, but weaker than the Winchester LAR, with a penetration score of 2 and 343 rounds per minute to compensate. I think it could still do a lot of damage in the hands of a Sharpshooter and considering the randomness of zed aggro, the Sharpshooter would also have the benefit of having a gun that he can use to parry scrakes or fleshpounds. (Damage mitigation on parry would probably have to be comparable to the Crovel due to being a ranged weapon)