Deductions & credits

Hi - I am tagging along this valuable thread

My foreign Social Security is from Germany, according to the treaty it is taxable in the US ...and it states that "benefit is treated as it would be a benefit under US social security".... as such a max of 85% should be taxable only... is it correct to file 1099R with Form 4582 and explain how I am applying 85% only?

thanks