Of course it's OK...lead bullets are actually easier on a gun.
Less pressure and less wear.
Clean it as normal.
98% of all my handguns have shot lead bullets , cast by myself and there are absolutely no problems from the practice. Doing it since 1967 .
The soft lead swaged bullets should not be hot loaded , cast bullets and hard cast can be shot faster without fear of lead fouling in the barrel. Coated bullets also eliminate leading.
I have never had to resort to a Lewis Lead Remover , just be aware of how hard or soft the bullet is and load accordingly.
Gary