Matt's , GT , Maplewood & Rimrock all make quality bullets with good lube . Unless you specify it they'll use a softer alloy than most also . Which is good in your case with the level of loads you're shooting . As long as bullets are sized to fit & a good lube one can push a Plain Based ( not bevel base ) to 1200fps or better with no leading . You don't need super hard bullets BHN 12 works fine .