How important is it?

[Doublecluck]

I know what works. I think I might be on ti something that works better. We'll see. mtmuley

I know lots of things that work, don’t mean I wouldn’t try a 118 hammer hht out of a 28 Nosler for pigs in Cali with family this august. Prolly push for 36-3800?

 

[mtmuley]

I know lots of things that work, don’t mean I wouldn’t try a 118 hammer hht out of a 28 Nosler for pigs in Cali with family this august. Prolly push for 36-3800?

Go fricken fast. mtmuley

 

[Ought Six]

We’ve taken say 10-15 animals with 168 vlds out of 30-06/300 wm

North of say 50 animals with 7mm 168 vlds



Ranges have varied 200-500 mostly. But very similar mv, same weight, same bullet design. By observation I always have felt like the 168/7mm combo just hit a little harder. Originally I thought it was just the obvious that the 7 was retaining more velocity/energy and had a higher sectional density. But there was enough crossover where it didn’t really add up. For example I shot an antelope doe at like 220 with the 300 and it ran like 40-50 yards. A week or so later my daughter shot a full size mule deer at 336 in seemingly the same spot center of lung with the 7 and it absolutely dropped it like normal. Vel would have been nearly identical. A while back I think I was listening to either Bryan Litz or one of those Hornady podcasts and it dawned on me that it might be the twist. If that’s the case it would seem even a subtle change 1-10 to 1-9 could have a dramatic effect. Not a huge sample size but makes sense.

What are your thoughts on the state of the lungs at impact? I’ve heard the analogy of a balloon, if they were inflated, maybe they’d ‘pop’ more violently versus putting a hole in a deflated balloon and it’s just a small hole to deal with as they try to fill while running off. Maybe that could be more of an archery factor, just spit balling additional variables with no research probably not a significant factor

 

[Don Fischer]

What is BC useful for? I have an idea that for 99.99% of hunters, even just shooter's, it's nothing more than something to talk about! Someone that can hit a quarter at 600 yds can hit a quarter at 600 yds. BC is not gonna help him much. No matter the BC he's still gonna have to know how much to hold over and be able to do it, will have to give a guess to wind drift also, just a guess! !

 

[Ought Six]

I shot 40 grain nosler ballistic tips out of a 220 swift ackley 12” twist at 4400fps. About the 500round mark things went south and started blowing bullets up. Had a lot of fun up until that point though

When this happens, would it mess up a suppressor at the end?

 

[Carl]

When this happens, would it mess up a suppressor at the end?

I've only ever seen it happen yards downrange, never a few inches from the muzzle. I'd speculate it takes some time at high rpm before the bullet can spin itself into a full failure.

 

[brockel]

When this happens, would it mess up a suppressor at the end?

I guess if it happened at the muzzle it could. But I’ve only seen the puff down range

 

[Ought Six]

Cool, getting into reloading and suppressors and stuff and was just curious if that was a concern.

 

[Salmonchaser]

What are your thoughts on the state of the lungs at impact? I’ve heard the analogy of a balloon, if they were inflated, maybe they’d ‘pop’ more violently versus putting a hole in a deflated balloon and it’s just a small hole to deal with as they try to fill while running off. Maybe that could be more of an archery factor, just spit balling additional variables with no research probably not a significant factor

I think one of Fackler’s studies on pigs showed a correlation between heartbeat and bullet impact timing. System pressurized when the bullet hit, DRT. Pressure off that’s when they run.

 

[Forkyfinder]

What is BC useful for? I have an idea that for 99.99% of hunters, even just shooter's, it's nothing more than something to talk about! Someone that can hit a quarter at 600 yds can hit a quarter at 600 yds. BC is not gonna help him much. No matter the BC he's still gonna have to know how much to hold over and be able to do it, will have to give a guess to wind drift also, just a guess! !

Increased hit probability at extended range?Being off in your wind hold with a lower BC makes a big difference. Your example, 600 yards, with a high BC (178 eldx) and other a spitzer soft point (180 interlock SP) at 3000 FPS

178 Eldx - 10 mph wind = 21.8", 20 mph wind = 42.2"

180 SP - 10 mph wind = 30.1", 20 mph wind = 58.4"

Maybe better shown with low wind speeds?


178 eldx - 5 mph wind = 11.6" , 3 mph wind = 7.6"

180 sp - 5 mph wind = 16.0" , 3 mph wind = 10.3"

If you are trying to hit the same spot, in a practical world - it makes a real difference. The BC insulates your model/dope from discrepencies (wind/bullet speed, wind direction, wind speed across bullet path) with true field conditions.

 

[std7mag]

Wow, I'm late to this party!

My take...

400 yards and less, BC doesn't really matter.
Once past 400 yards is where BC really starts coming into play.

But to me, bullet consistency is more important than the BC numbers.
Doesn't matter what the BC is if your bullets are not consistent.

I've watched a guy put 5 rounds in the "X" ring (5") with a 257 Roberts shooting 75gr Sierra HP Varmint bullets.

As far as wind is concerned, are you really that good that you're going to shoot at a game animal at 600+ yards with a switchy wind doing 20mph?

 

[Forkyfinder]

Wow, I'm late to this party!

My take...

400 yards and less, BC doesn't really matter.
Once past 400 yards is where BC really starts coming into play.

But to me, bullet consistency is more important than the BC numbers.
Doesn't matter what the BC is if your bullets are not consistent.

I've watched a guy put 5 rounds in the "X" ring (5") with a 257 Roberts shooting 75gr Sierra HP Varmint bullets.

As far as wind is concerned, are you really that good that you're going to shoot at a game animal at 600+ yards with a switchy wind doing 20mph?

Can you tell the difference between a 3 and 5 mph wind? How about a 8 and 13? How about halfway down range where it will actually affect your bullet a lot more?

A better BC leaves more room for error as ranges go further. That was my point.

Edit : even in terms of consistency - the already bad BC varying by 5% will have a bigger downrange impact than 5% on a good BC bullet

 

[brockel]

Higher bc and a measly 10mph makes the difference of me hitting a coyote dead on in the chest at 300 yards or a clean miss left or right.

 

[rogerthat]

Can you tell the difference between a 3 and 5 mph wind? How about a 8 and 13? How about halfway down range where it will actually affect your bullet a lot more?

A better BC leaves more room for error as ranges go further. That was my point.

Pretty sure I read an article on the statistical probability of hitting your target. BC had the greatest impact to that statistical probability simply due to range and wind dope errors. It was a great article.

 

[Rie Bread]

If only works if you whisper “ ballistic coefficient” 3 times before pulling the trigger