Quarterbore's Forums - 78 yard 308 subsonic deer kill

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[QUOTE=tgvet;25001]

Quote:

Originally Posted by Alleycat (Post 24932)

I have been trying to shoot a deer with a subsonic bullet on video for a while now. It's harder than it looks. The deer, the camera, and I don't always cooperate. Bow hunting with a rifle at 78 yards. I know of no other way to explain it.

The gun is a Savage 10 precision carbine threaded by TT.
The suppressor is a AAC Cyclone.
The load is 11.6 grs of Trail boss, Nosler brass, Win mag primer, and a 225 Outlaw State bullet. Average velocity is 1055 fps.

AC,
I'm going to be loading up for my 40XBT, also use a Cyclone after finished proofing starting w/10g of TB 175 BTHP I was wondering what the twist and length is on your Savage ?

Thanks.

Nice kill too.

It's a 10 twist.

Nice vid. Thank's for posting. And thanks again for the info on the scope. I've just completed my 300 Whisper AR and trying to figure out what to glass it with.

Hi alleycat,
Congratulation for the shot and the excellent video.
Could you tell us if the bullet tumbled or expended or a bit of both?
Did it penetrate or ricochet on any bones?

Thanks.
ND

The Pride Fowler I was referring to use to be on my Whisper AR. The scope on this gun is a Leupold Mark 4 4.5 x 14 LR/T. It has a custom reticle setup for 500 yards and turrets setup in 50 yard increments to 1000 yards. It also has 100 MOA of adjustment. All of this is calibrated for a 168 A-max @ 2660. I use the drop compensation in the scope as aiming points for the subs. @ 7 power the 400 yard dot = 100 yards. The 500 yard dot = 150 yards. It's not a perfect set up but I just got everything setup right before season.
The bullet. I had planned on shooting a 240 Outlaw. It was stable from 3 yards out to 100 yards and shot great out of my 10 twist. I went out to verify the drop at 125,150,175, and 200 and they started destabilizing at 150. So the 308 gets the 225 just a few days before season. The bullet hit in the crevice between the shoulder and the neck. It opened up and turned sideways as it went through the lung. It entered the liver backwards and exited at an angle. The bullet hit the back ham but did not enter. I found the bullet in the yard where I gutted the deer a couple of days later. Looks like the petals opened up and then folded back when it tumbled backwards. Here are some entry and exit pics of the liver
http://i830.photobucket.com/albums/z...rKill003-1.jpg
http://i830.photobucket.com/albums/z...eerKill002.jpg

This is the bullet.
http://i830.photobucket.com/albums/z...erkill2003.jpg

The bullet acts different in a 10 twist than in a 8 twist. The 10 twist gun tumbles much faster.

Nice kill/shot dude, wish you many more!

Quote:

Originally Posted by Alleycat (Post 25009)

The bullet acts different in a 10 twist than in a 8 twist. The 10 twist gun tumbles much faster.

Good observation , I'm starting to think 8 overstabilizes the bullets and makes them more like little drills. Nice shooting :smile:

I agree that 1/8 may be over stabilising 220 - 240s (I know they do that to 210 Bergers) but I think too we need to look at barrel length as well. Wasn't the idea that the faster twist would also act to compensate for a shorter barrel needed for more efficient subsonic shooting?

Almost time for a debate on barrel length vs twist needed for subsonic 220 - 240 grain use...

What photo was deleted btw?

[QUOTE=Rikky Lee;
What photo was deleted btw?[/QUOTE]

It was the entry wound in the liver. I have no idea why Photobucket deleted it.

I need a cameraman..

I tried to get a supersonic kill on film for comparison. I did not have the camera lined up with the gun and Murphy stepped in.

http://i830.photobucket.com/albums/z...erkill2004.jpg

[QUOTE=Alleycat;25246]I need a cameraman..

I tried to get a supersonic kill on film for comparison. I did not have the camera lined up with the gun and Murphy stepped in.

QUOTE]

2 Questions, are you using a digital camera? Does it have a threaded hole on the bottom?

If so on both then you can buy/build a mount to attach it to your gun/scope. The hole is a bopod adapter and should have no problem mounting something that light via a ring adapter or what not to your scope.