plenty on here use the 12.5 so you should be good. I didn't want to get a stamp so I built a 16". My AR pistol (which uses actual pistol bullets) is an 8"I purposely built it with a short barrel for handling and ease of maneuverability. Hope the 12.5" barrel isn't going bite me in the butt on performance.
Your right, I'm overthinking it...dead is dead.It killed the deer!! And you watched it drop!! And you question performance. I shot one years ago at about 175 with a 300 mag. Broke both shoulders but the bullet was lodged under the skin on the backside.
If you don’t want them to run shoot em in the neck, CNS shots make recovery super easy! It’s the only shot I take when they are standing in the road, just back the sxs up to them, winch them in and head to the hanging post.
Never had a failure with my 300 Wby. I never shot anything less then 180's One was a quartering away shot that exited between the front shoulders. (It was a mess) Penetration was never an issue, nor was tracking, never had too. Your test sounds interesting. I wonder if the 300 bullets hit more bone?I did a ballistics gel test at a 100 yards and I put a deer shoulder and ribs in front of the gel. I shot it with my 308 and my 300 win mag using 150 grain Remington corlokts in both. The 308 held together and penetrated 18 inches. The 300 completely fragmented and only penetrated 8 inches. I chronograph both rounds, 308 was doing 2730 fps and the 300 was doing 3150. Identical bullets but completely different results because of different impact velocities. Bullet construction plays a huge role, had i used all copper bullets in both the results would be way different.
She died! That said I prefer the 115 grain gold dots. That's what I load for deer with that brand. Dropped a sleeping buck at 205 yards last season. Bullet performed perfectly. He never woke up.Here is a photo of the deer, you can see the entrance hole on her left shoulder. I'll see if my local shop has any heavier ammo.
All the bullets hit bone but it's hard to say if one hit a thicker part then another. I think most cup and core bullets that hit bone at 3000+ fps will do the same thing. Had that been a deer , im sure it would have dropped in its tracks. 4000 ft/lbs of energy getting dumped in 8 inches would be devastating. I've done this same test with the 6.8 , 450 bushmaster, 223 and 30-30. Here's the videos.Never had a failure with my 300 Wby. I never shot anything less then 180's One was a quartering away shot that exited between the front shoulders. (It was a mess) Penetration was never an issue, nor was tracking, never had too. Your test sounds interesting. I wonder if the 300 bullets hit more bone?
Edit: did some quick reading on the core lokts. Seems short range hence high velocity, in the magnums, is the kiss of death for this design.
So maybe me using the 180's, sometimes heavier, I did not have the higher velocity as you had with the 150's to have the problems you noted.
I was going to respond to this post but you guys beat it to death then stomped it to mush. Get a longer barrel and heavier bullet or learn to track your game unless you're shooting small deer and coyotes.Federal Fusion 115 gr I believe has a min. vel. performance at 1,600 FPS, the listed BC of .378 has been verified by some one here to be .301. The original stated BC made it a 400 yard bullet on average but by various Ballistic Programs it seems to be just over 300-340 yards with the BC of .310. For me, that still is a great factory ammo I won't pass up.
The 110 Accubond has a min velocity of 1900 feet per second so it runs just over 300 yards for factory ammo as well from the Ballistic programs I've played with. Still I have some left for my ARP I'm using for that gun for one more or two deer season. For Varmints I use the 115 Fusions.
Both are a form of bonded bullet, as usual it depends how the bullets hit to have a pass through or not. Bullets hitting a critter is where Mr. Murphy comes in, some times its a nice pass through, other times you hit bone several times and get no pass through. But I like pass throughs with an expanding bullet, so I go with bonded bullets. These are my two experiences with 2 bullets I use, hope it helps. Oh most hits I got where pass throughs, but hitting some heavy bones, like this year, the bullet ricocheted off neck bones and went down and hit the deer through the leg! Mr. Murphy tried to get me there.
For a tough 6.8 bullet, Barnes 95 TTSX is a great monlithic one, my brother uses them and has good pass through and blood trails from them.
EDITCUS: Well seeing X-Man's 115 federal fusion bullet performance. At 1900 fps at 300 yards it seems it would be around the stated .378 BC. But he did a check, I think it was that made the BC a .301 I read on here. So all in all...its a Maybe, Maybe not thingy.
I'm not sure but I think you on did respond to this post . Longer barrel would be higher velosisity which may have caused quicker expansion and less penetration . Heavier bullet is a good option as long as it's a non fragmenting bullet . I believe zz top got it right when he advised s&b ptsp . Plenty of expansion , don't fragment and good size exit wound .I was going to respond to this post but you guys beat it to death then stomped it to mush. Get a longer barrel and heavier bullet or learn to track your game unless you're shooting small deer and coyotes.