From Kenny Jarrett...
.243 Improved
70 gr. Nosler bullet...3650 f.p.s. | 85 gr. Sierra Spitzer...3450 f.p.s. |
I believe the second reamer that I ever bought was a .243 Improved. I’ve had over 30 years experience with this dual-purpose varmint and deer cartridge, and it’s one of my top 5 favorites. The trick is to chamber it in a one twelve twist barrel. You can have a super varmint bullet in 65-70 gr. and shoot 85 gr. bullets for deer. I’ve killed more than 250 hogs and deer with this one cartridge. I shot the old screw machine Nosler Partitions at 3440 f.p.s. out of a 20” barrel. Recoil is mild, but believe me when I tell you velocity kills! The cases are easily fire formed and loaded and normally last 30% longer than standard brass. This cartridge, in a heavy barrel varmint rig with a 26” barrel, is a real performer if you are a 6mm fan. In thinking about it, I have never culled a .243 Improved in the tuning room. The .243 Improved is not finicky in any way, so I highly recommend it. This cartridge does best with a 20” barrel.