I am building a lightweight bolt gun and was wondering if any of the 6.5mm calibers (260, 6.5x47, or 6.5 Creedmor) outshine each other when it comes to velocity in an 18 inch barrel. I was told the creedmor retains the best velocity in shorter barrels, any truth to that?
I know the 3 calibers mentioned above are very close ballistically in longer barrels, and I don't want to beat a dead horse.
If it matters I plan to use 130 vld's.
I know the 3 calibers mentioned above are very close ballistically in longer barrels, and I don't want to beat a dead horse.
If it matters I plan to use 130 vld's.