Badlands Precision Bullets thread - From BC to terminal ballistics

[nralifer]

Just to make things clear for the readers, which cartridge requires a 1-7", .243?

It's the bullet fired from whatever cartridge that requires the 1:7 twist to stabilize. Sorry if that was not clear.

 

[Hiwayman92]

Of course I have to ask, since it has been well stated that the 100 needs a 1:7, could I get by with a 1:7.5 at 6-8k feet?

 

[Ed AO]

According to jbm calculator you can

 

[nralifer]

Of course I have to ask, since it has been well stated that the 100 needs a 1:7, could I get by with a 1:7.5 at 6-8k feet?

At that altitude they will be stable enough. At what altitude will you do your load development?

 

[wilkup]

I have a friend in town whose company makes custom hunting rifles using carbon fiber stocks and carbon wrapped barrels using ultra high density carbon wrapping and stock material made by Paradigm. He is a big user of our bullets including the 100 gr .243 BD2. A customer of his, for which he developed a load in a 6mm wildcat based on the 243 Win case killed 3 pigs at 150 yds at a feeder with one shot, attesting to the extreme penetrating ability of these bullets. I have had no problem hitting targets at 1200+ yds with these bullets. They are perfectly suited as long range hunting bullets out to at least 1000 yds and at that distance the combination of high BC and reliable expansion down to 1700 fps make them a true long range hunting bullet. I personally would not hesitate to shoot Deer or Elk with these bullets at extended ranges (beyond 600 yds). They do require a 1:7 twist barrel to function properly. As always shot placement in the vitals is key to a quick kill.

Can't wait to try them out!

 

[Hiwayman92]

I live at 6,600 and everything is up from here. Looks like I'll be trying some 100's in my XC.

 

[idcwby]

.308 205gr SB-2 muzzle velocity was 3125fps shot was 40 yards.

Entrance side

Exit side

It's hard to see on the exit side, but it looks like a petal came out below the exit hole. The buck dropped in his tracks.

 

[codyadams]

.308 205gr SB-2 muzzle velocity was 3125fps shot was 40 yards.
View attachment 408945

View attachment 408946
Entrance side

View attachment 408951View attachment 408954
View attachment 408956
Exit side

View attachment 408959

It's hard to see on the exit side, but it looks like a petal came out below the exit hole. The buck dropped in his tracks.

For such a high impact velocity, that is awesome. Not a ton of bloodshot, but a massive exit!

 

[nralifer]

.308 205gr SB-2 muzzle velocity was 3125fps shot was 40 yards.
View attachment 408945

View attachment 408946
Entrance side

View attachment 408951View attachment 408954
View attachment 408956
Exit side

View attachment 408959

It's hard to see on the exit side, but it looks like a petal came out below the exit hole. The buck dropped in his tracks.

You shot it at very close to the MV because of the very high BC that bullet has, G1=0.785. Thanks for sharing. Excellent demonstration of not a huge amount of meat destruction given the high impact velocity.

 

[idcwby]

You shot it at very close to the MV because of the very high BC that bullet has, G1=0.785. Thanks for sharing. Excellent demonstration of not a huge amount of meat destruction given the high impact velocity.

Do you think if it hit bone going in, the bloodshot would've increased? I know on the entrance side it would have, but what about the exit?

 

[nralifer]

Do you think if it hit bone going in, the bloodshot would've increased? I know on the entrance side it would have, but what about the exit?

Probably, but nothing like a lead core blowing up at that impact speed.

 

[cbuck516]

My 14-year old nephew shot this whitetail yesterday with my 25-06 and 95gr. BD2. Impact velocity was 3480fps @ 30 yards and double lung broadside shot sprayed lung material on the ground. Blood trail was phenomenal and he went about 50 yards before tipping over within a few seconds of the shot. I found a bone fragment lodged in the liver like a spear. It was pretty neat, but I didn't take a photo. Dog-bone-shaped hole was the entrance. As much coaching as he received to shoot into the shoulder, he still shot further back than I wanted to see. I still haven't seen how this bullet behaves when it hits shoulder blade or leg bone, but I hope to make that connection before season closes next weekend.

 

[nralifer]

My 14-year old nephew shot this whitetail yesterday with my 25-06 and 95gr. BD2. Impact velocity was 3480fps @ 30 yards and double lung broadside shot sprayed lung material on the ground. Blood trail was phenomenal and he went about 50 yards before tipping over within a few seconds of the shot. I found a bone fragment lodged in the liver like a spear. It was pretty neat, but I didn't take a photo. Dog-bone-shaped hole was the entrance. As much coaching as he received to shoot into the shoulder, he still shot further back than I wanted to see. I still haven't seen how this bullet behaves when it hits shoulder blade or leg bone, but I hope to make that connection before season closes next weekend.

With such high impact velocities weird things can happen. The weirdest is a friend shot a Wisconsin White Tail using a 150 SBD2 from a 300 Ultramag going 3500 fps. Hit the deer in the chest broadside a little too far back and the lung on the opposite side came out of the chest, The deer ran off with the lung flapping in the breeze. It was found the next day half eaten by Coyotes.

 

[C.O. Shooter]

.338 - 275 SBD2:

Very impressed with the Badlands SBD2. I had shot a coyote at 269 yards (Velocity 2610 & Energy 4161) and a whitetail at 345 yards (Velocity 2531 & Energy 3913). Both animals died in their tracks. Coyote appeared to have a bigger exit wound than the deer. Was hoping for a longer shot overall, but it was the bottom of the 9th, bases loaded, 2 outs, and a full count!

For the deer, the bullet went into the front shoulder blade, perfect hole. Very little trauma at entrance. Expanded through and had an exit wound the size of a tennis . Found bullet fragments in the off side shoulder and underneath the back strap. Bullet traveled just underneath the spine catching the lungs and heart with the shedded petals.

@171farm can attest to the above!