Originally Posted by AJ Peacock
Based on some discussion on another thread, it was surmised that "Long Range" might be better defined in terms of flight time than distance.
Certainly a 500yd shot with a 222Rem is much tougher and would be considered 'more' long range, than that same shot with a 50BMG or 338AM.
It was opined that anything over 3/4 second flight time might be rationally considered 'long range'. Since the longer the flight time, the more critical everything becomes (animal staying still, reloads being perfect, wind being estimated correctly etc.).
To that end, I've calculated (using Exbal) what the above definition would mean for a few popular bullet/velocity combinations.
22cal 80gr SMK at 3000 anything beyond 580yds
22cal 80gr SMK at 3400 anything beyond 650yds
7mm 160gr Accubond at 3000fps anything beyond 610yds
30cal 180gr SMK at 2600fps anything beyond 530yds
338cal 300SMK at 3400fps anything beyond 725yds
ps: Merry Christmas
Oh goodie.... we can get back to "long range" shooting (no angels and pins invited).
I have been interested in long range shooting since before I was old enuff to buy guns or ammo.
As I went through different stages, I began to make observations just like you have here.
About 5 or 6 years ago, a good shooting friend and I discovered that you could predict the approximate barrel life of a cartridge, by just what powder it used as optimum... that was pretty cool. We tested it on just about every round we could think of, and it always came out right.
I also found that (assuming normal designs and pressures) ANY
cartridge that had a powder charge that was equal to the bullet weight would give you ~4,000 fps - it didn't make any difference what caliber, as long as the barrel was reasonable for a rifle, and the powder was of an optimum burn rate. (stupid examples like 40gr of IMR-5010 in a 22-250 with a 40gr bullet, don't count)
There are lots of these "3/4ths of a second" relationship-thingies in shooting that are a bunch of fun to discover, and when put together, they give us a bigger understanding of shooting than the charts and graphs do.
I have a 40-XB rimfire target rifle that I bought from a local school that phased out their rifle team.
I cut off 4 inches, and mounted a Leupold 6.5-20x40 EFR on it, in Burris Signature rings, so I have the full 40 moa of elevation as up.
It also shoots the 60gr Aguila rounds (it has a 14" twist), and at long range, you can fire one of these puppies, and call out for pizza before it plinks the rock (or barn pigeon) you were aiming at.
Using that rifle at 300yds is as much of a challenge as using a 50 BMG at 1,900 yds (my furthest with the 50-BMG).
It's all relative I guess.