Speer 125gr. Hollow Point Flat Base Bullets

[Bull 228]

Howdy,
Anyone have any experience with loading up these Speer 125gr. HP in the 300 Whisper/Fireball/Blackout platform? I just turned up a box of these bullets on my bench and thought they might have some potential. (Supersonic loads)
NT

[i8asquirrel]

I use them over 18.0 gr 4227 with cci400 primers and have had very good luck

[Bull 228]

They look like they would be a great hunting bullet in the caliber, maybe better for varmints...not sure if the bullets are designed to hold together very well or not. thanks for the input.
NT

[i8asquirrel]

well I can tell ya that out of my .308 win with a 16" barrel they knock blacktail deer here in Oregon on their ass. put one in the boiler room and get a DRT kill on two different bucks. loads of trama and no exit.

[Bull 228]

Thanks for the info, that was my feeling that it would be pretty devastating. Like to try it out on a coyote and check the results. Thanks again.
NT

[alorton]

There is a 300 AAC Blackout thread on here that rsilvers posted that had ballistic gel testing and the 125gr Speer TNT was one of the tested bullets if you are looking for hard data on terminal performance.

It performed ok but had a long neck length at 300 BLK velocities. Not sure if that would change with faster rounds like .308 as I haven't seen testing but I suspect it would.