The way I always do it is to ask, then check. Has worked for me since I bought a computer 10 years ago... 1} What is THE Best powder for 170-180 grain 10mm loads? Meaning best, favorite powder for loads generating 1250-1300 fps with 170-180 grain bullets from a stock G20? 2} Favorite specific load for 180 grain bullets at about 1300 fps in the selfsame G20. Thanks. The "10 sites" are the best on GT.