For what it's worth.....Reloaded some 7 m/m Rem. rounds using 22 grains behind some Sierra and Hornady 175 gr. bullets....chronographed right at 2850 out of my LH Mod. 70 with a 26" barrel. Accuracy was very good with groups averaging right around an inch and a tad more with the Hornady Interlocks. By the time I broke out the Hornadys range conditions were getting tougher with a lot of mirage. Used a Magnetospeed Sporter for the chronographing. Results were pretty similar to RL22, but Alliant says they are not interchangeable.
