History, Details, Ballistics, and Drop for the. 30 - 30 Winchester and the Remington Accelerator Soft Point, 55gr leaves the barrel at 3400 fps. While we have went to great lengths to make sure that it's as accurate as . Ballistic Calculator.
For example, the bore diameter is.300 inch for a typical. 30 caliber cartridge like the .. also has a table showing Center Fire Rifle Velocity Vs. Barrel Length.
Which brings me to this question: what are the practical differences between 16"(is there even a 18", and 20" barrels in 30 - 30. I know what. Does Barrel Length Really Make A Difference?