posted on Aug, 12 2008 @ 01:54 PM
The .220 Swift at full load is a barrel burner. If you want a round that will reach out farther, I'd go with the 6.5 x.284 Winchester or even the
6mm Remington or Winchester over the .220 Swift. The 6.5 mm bullets in 140-142 grain and the 6mm bullets in 105 grain weights are going to have a lot
less wind drift than even the heaviest .22 bullets driven at 3600+ fps which is difficult even with an Ackley Improved Swift. A shooting buddy uses
.105-120 grain bullets in 6.5mm in the new .260 Remington(6.5mm x .308 Winchester) with very good accuracy out to 600 yards. For varmint hunting,
long range accuracy is far more important than velocity. The Swift was a far more difficult cartridge to wring accuracy from than its main rival,
the 22-250 Savage which nearly matches its ballistic performance with a much smaller case and shot very accurately right out of the box. Another
very accurate varmint round is the 6mm Benchrest which is based on the .308 case but is shortened to 1.5 inches in length.
Alas, so many cartridges , so little time!