I don't recommend it, but it can in fact be done. I have proven that a white tail can be taken down with subsonic 300blk at less then 380ftlbs of energy and a non expanding bullet. If using a properly designed bullet, it will expand/fragment at sub velocities. I will echo a few things and then just give my opinion based on actual use. If you want to punch paper at ranges up to 500 it is possible as the BC is a hell of a lot better than a. For me if I am shooting at pigs/coyotes I keep the subs within 150 yards as I can easily put it on the target at that range without worrying to much about the drop. I have shot a lot of subs at around 300 to 400 yards and they are more than capable of accurately getting out there but just like you said though you would have to range pretty well to calculate the proper hold over other wise you will shoot over or under the target. You can get out to 300 yards and still expect the Lehigh to expand. I figure if I need more than 10 rounds that someone is shooting back and it is time to go louder.Īs for the OP question. I load the top 10 rounds with the subs and the other 20 with the Barnes Black tip. The choice is clear if you want subsonic expansion you need to get the Lehigh.Īfter testing the Lehigh Defense rounds I now use them as my primary home defense in my 300BLK. There is also Outlaw State Bullets that will expand at subsonic velocities but with the Lehigh costing close to the same and feeding better in the AR. The 194gr Lehigh defense are some of the most wicked expanding subsonics around. At best you will get some yaw and lose the ballistic tip and slightly smoosh the front. ![]() You just have to know your dope.Ģ08 Amax will not expand at subsonic velocities. Trajectory is a non-issue, it's like any subsonic ammo. Lehigh Defense makes an effective expanding bullet for 300blk. If someone was to come up with a bullet just for 300 BO that worked at subsonic velocities they would own the market as there is none that I can think of. Anything but going straight through would be nice. I would hope that it mushrooms a little or breaks up or tumbles. It is to fragile at real rifle velocities for hunting but may be the ticket at subsonic. ![]() I am just thinking that the 208 Amax might be the best subsonic bullet for the blackout. Just for the heck of it we sometimes dig them out of the berm and even in straight sand they never expand. It is very quiet but performance as far as trajectory and expansion is not good at subsonic speeds. I work at a gun range and talk to many people that have used it subsonic with a can. You are correct that it acts like a pistol caliber velocity FMJ, no expansion and pass right through. I guess that is part of the debate but I'm not expecting instant stops on hogs with subsonic 7.62 at any distance. So the practical range is going to be the max effective range you can make the kind of hits needed to kill a hog with pistol caliber FMJ.Īs far as quickly, tracking, etc. Well, at subsonic speeds, I am assuming any 7.62 diameter bullet is essentially going to act like a pistol caliber FMJ when it hits - no fragmenting or expansion, maybe tumbling if you are lucky.
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