LAST EDITED ON Sep-15-08 AT 01:51AM (MST)[p]I too used to shoot core-Lokt ammo until some of the newer factory available loadings blew them out of the water. Remington factory 180 grain Core-Lokts have a Ballistic Coefficient (b.c.) of only .248 When compared to others like a swift sirocco, another Rem. factory loading but there are many other bullets with high b.c's, that has a b.c. of .500, the Core-lokts fly like an egg.
This B.C. figure represents way more than pure numbers. Both below are 30-06 Remington Factory available loadings.
feet /per/ sec. .. B.C. .. Muzzle .. 300yds .. 500yds
180 gr core-lokt . .248 .. 2700 .... 1727 .. 1251
180 gr swift sir.... .500 .. 2700 .... 2032 .. 1648
Notice the difference in bullet speed at 300 & 500yds when both bullets left the barrel at the same speed. THAT'S the difference in Ballistic Coefficient talking! Higher BC's, the better they fly. Now below i'll show what happens to the bullets retained energy when different b.c.'s come into play.
foot/pounds/energy .. muzzle .. 300yds .. 500yds
180 Core-lokt ............ 2913 ... 1192 .... 625
180 swift Sir. ............ 2913 ... 1910 .... 1409
Again, both left the barrel with the same Energy, look what happens down range. I'm using Swift as an example only, there are others like those mentioned in the above posts that have high b.c.'s, great pills!
The same can be said of the .270 Winchester 150 gr Express Core-lokt loading. It's numbers are just as bad. Flys like an egg and drops like a rock after 300 yds!
I know there are going to be people saying how they killed animals for years with this Express Core-Lokt ammo. I have too!
I'm a major Remington Fan. It pains me to say, Core-Loke factory ammo and Core-lokt bullets have had their day, might still have their place, but IMO, not on a big game hunt when a long range shot may come into play. There's way better stuff out there. Pay the price for better stuff or load your own. Use good bullets or really pay attention to your yardage and shot placement, preferably both.
Joey
