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Any new info on this cartridge? Dr69er had a post on it, but I could not find it. Last I talked to SSK they were about to release a lower priced upper.
The 6.5 MPC seems to me to be the best all around cost effective cartridge for the AR platform, for deer and hogs, if you factor in reloading from 223 brass without fire-forming ( most of us have 1000's of empty cases sitting around).
The 6.5 ballistics, trajectory, and retained energy are pretty impressive, if I recall correctly 1000 lbs of energy out to 300 yards.
That depends on barrel length and bullet. With the 108gr Lapua Scenar and a 20" barrel you will have over 1000 ft-lbs of energy at 300 yards but it isn't an ideal hunting bullet. According to SSK the 6.5 MPC shoots the 108 at 2650fps at the muzzle. In a 16" the MV drops to 2500 and energy is about 1000 ft-lbs at 250 yards.
Assuming you could drive a hunting bullet, like a 100gr Barnes, to 2650fps (and you might not, the Barnes would be longer and might reduce usable powder) the bullet will have about 1000 ft-lbs of energy at 200 yards. Another hunting bullet with a slightly better BC like the 100gr Nosler BT still only has 1022 ft-lbs at 200 yards and is down to 812 ft-lbs at 300 yards.
I like the ballistics of the 6.5MPC but it will have its limitations. It seems to perform about equal to the 6.5 Grendel with very light for caliber projectiles (95-108gr) but loses ground to the Grendel with longer bullets like the 123gr class high BC bullets.