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Cheapo · March 28, 2001, 05:45 PM

The higher BC of the M80 will usually let it stay supersonic a little past 600 yards.

The M2 will almost always go transonic/subsonic by 600 yards, which really messes up your group sizes and lets any wind blow it all over the place (horizontal dispersion).

In .30-06, the M80s will look a little odd and a bit short. If you have no plans beyond 500 yards, just work up a load with each and use the one which is more accurate. Reliable group size comparisons are possible at 30-shot samples. I do six five-round groups.

March 28, 2001, 05:45 PM	#4
Cheapo Senior Member Join Date: November 19, 1998 Posts: 986	The higher BC of the M80 will usually let it stay supersonic a little past 600 yards. The M2 will almost always go transonic/subsonic by 600 yards, which really messes up your group sizes and lets any wind blow it all over the place (horizontal dispersion). In .30-06, the M80s will look a little odd and a bit short. If you have no plans beyond 500 yards, just work up a load with each and use the one which is more accurate. Reliable group size comparisons are possible at 30-shot samples. I do six five-round groups.