The 6UM

[Clownbuster]

From Kurt,

My daughter shot this buck with the 6 UM at 540, one shot, entered right behind right shoulder, no exit or damage on offside, first 115 I have had not exit, hit a rib on the way in. Took out most of the lungs, tore the diaphragm in half and even damage the liver. Pretty unbelievable damage inside.

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Were these DTAC NRs with the standard cut depth, or a deeper cut NR?

 

[Clownbuster]

Put this one together in the 6 SAUM chamber, 16.5" barrel. Wondering if N570 or RL26 will work, or if something faster burning like N560, H4350 or RL16 would work better. Anyone have short barrel load development intel to share?

 

[PathFinder]

Whitetail buck, distance was 730 yards. Somewhere around 2300 fps impact. Deep cut NR DTACs.
First shot was 13 degrees below me and quartering hard away. Entrance around the last rib. The rest is a little muddled...the buck went down, got up and went about 10 yards, and then went down again. Last couple of shots were through brush to make sure he was going to stay down as he was still trying to move. Deer was mostly broadside at this time, one shot while half-standing, others while laying down. This spot takes a while to get to animals so we try to make sure they aren't going anywhere before we leave to recover them. One shot ended up underneath the ribcage mid-body. Didn't attempt to recover that bullet. One ended up in the offside shoulder and shattered it. That's the small bullet fragment picture. One ended up (I assume) taking a hard turn and exited up through the backstrap with basically zero energy left when it did, that's the stereotypical looking mushroom lying under the hide. Not sure which shot that was, being in a hurry I didn't take the time to figure it out. One neck shot only hit the windpipe and a tiny bit of muscle, it basically penciled through and I believe the deer was already expired when that one hit.
Conclusions: At this velocity the deep cut NR DTACs appear to be fragmenting/expanding well. The bullet that hit the offside shoulder was very fragmented. Probably should have taken the time to do a full necropsy but I had an 18ish hour drive home ahead of me and was itching to get started.

1st shot entrance:


Strangely located exit in backstrap. Typical mushroom that probably weighs less than 50 grains

Entrance through onside shoulder

Exit in offside shoulder. This shoulder was completely shattered from the top of the scapula all the way down through the main joint. Lots of small bullet fragments and a pea sized chunk of the core were found.

Small exit hole in offside shoulder

Offside shoulder exit wound again with small bullet fragment referenced above