No issues whatsoever with both BB standard pressure 158-gr. and 150-gr. loads in my S&W 637-CT (16.5-oz) and Ruger LCR (13.5-oz) snubnose revolvers that shoot to Point of Aim at 21'.

These two BB loads are toned down and made especially for short-barrel snubnose handguns and are hot like some of BB's other +P loads are.

Standard Pressure Short Barrel Low Flash Heavy .38 Special Pistol & Handgun Ammunition
Standard Pressure Short Barrel Low Flash Heavy .38 Special Pistol & Handgun Ammunition