This is my project right now.
I presently have a .222 rem that I love. It is wonderfuly accurate, low recoil, quiet and 100% reliable. Great varmint gun out to 200 yards maybe a bit more.
I just horse-traded for a NEF .270 win to give me a longer range, heavier bullet for deer size game and longer range work.
One of the interesting things about these two calibers is how similar their trajectories are with their most preferred load ranges/bullet weights.
Using the .222 and the known characteristics of my pet 50 grian bullet load for this gun (which EXACTLY duplicates the calculated trajectory on Remington's online ballistic comparison site for the most similar load by the way), several loads exist that almost exactly mirror the same trajectory. i.e. 1.9" high at 100yds, 0" at 200yds, -2" at 300yds, -7.1" at 400 yds, etc...
I intend to develop a load for the .270 that comes as close to the same trajectory as possible with good accuracy and outfit both guns with matching scopes. My theory is that once developed I can cover a great deal of shooting situations with a pair of guns that have nearly the same characteristics with regard to trajectory. Add to that using the same scope and I can increase the relative accuracy of the combined gun/shooter.
Does this make sense to any of you guys?
I was really working hard to decide what deer caliber to go for and the trajectory comparisons to my favorite gun sealed the deal. I know I can expect to find subtle differences in actual loads and that projected by ballistic comparison charts, but starting with a cartridge that indicated the most similar arc made sense to me.
I thought this would make for an interesting discussion anyway.
bwana
