I just follow Hornady Significant Responsibility 135 gr +P in 9mm. It feeds and shoots by my SIG P365 and out performs SIG's proprietary ammo for that pistol accuracy wise. My recent purchase for your Lee 9mm carbide "undersize" resizing die that cuts down the case diameter by .003" over https://9mmreloader29639.worldblogged.com/44281800/the-smart-trick-of-9mm-reloader-that-nobody-is-discussing