My 30-06 came with a plastic butt pad. So I took it off and put a larger rubber butt pad on it. I had to cut the stock off the with of the new butt pad and subtract the with of the plastic butt pad. I cut it off my self and squired the stock over the winter sanding,
checking.
After about 20 years I got a gunsmith To check out it didn't need much more rubber removed.