Western Powders has introduced a new spherical powder designed for large magnum cartridges such as the .338 Lapua Magnum. This new powder, Ramshot LRT, has an extremely slow burn rate. Being a spherical (ball) powder it meters well. It also offers very good velocities. The manufacturer states:

“As one of the slowest spherical powders ever developed, Ramshot LRT (Long Range Tactical) was created for high performance at extreme ranges. Designed specifically for the .338 Lapua Magnum using heavy, high ballistic coefficient bullets, LRT offers high load densities and low standard deviations for superior accuracy. Hunters who prefer the advantages of overbore magnums like the .257 Weatherby or 30 Nosler will find that LTR meters more easily and produces flatter trajectories than rival propellants.”

Though Ramshot LRT has just started to ship to retailers, Western Powders has compiled some initial load data for a variety of cartridges. Shown below is official load data for four large cartridge types (this is a partial list). Additional load data for Ramshot powders is found on the Ramshot Load Data Page. As with all load data, start conservatively, and stick to the exact components listed: