.25 caliber. If you mean chamberings: Souper Improved. Was building a very small .25 to use the 100 ballistic tip, but its bc is so poor, I had to switch at the last moment to 6mm.
Were you really trying to stretch it out? I know they’re not awesome but mine makes it to 600 yards pretty nicely.
I won’t deny that slicker bullets are nice though but for the distances I shoot deer mostly BC doesn’t make a huge deal.
