All same components, 143 ELD-X, same twist rate. The load in a 24" barrel tends to make 2750 to 2800 fps MV. Yesterday we got DOPE on a suppressed 16" barrel. The MV on it is 2500 fps MV. And it still ran out to 800 yards just fine.

Normally, I would have used a faster burn rate. But, more important to him was temperature stability and consistent shooting. H-4350 does well to fill the brass as well as its' known temperature stability. Though I need another 16" barrel to test some faster burn rate powders and see what happens. The powder won't fill the brass completely, but it likely will shoot quite consistent. There's a few powders I have in mind.

This equates to a 37.5 fps loss for every inch the barrel is shorter. As opposed to the rule of thumb of 20 to 25 fps per inch.

Hornady factory ammo, with the 143 ELD-X has 2710 fps published on the box. Every time we have ran it out to 800 yards, that has proven false, even from a 24" barrel. It is much slower than what is published on the box. Never trust published velocity, find out for yourself. So the Hornady ammo would have been pitifully slow in a 16" barrel.

FYI

You two can re-read the title and the first post.

Maybe your reading comprehension will kick in. 603Country's has failed him as well.

I just don’t agree that a whole lot of people want to kill animals at 500 yards, although I do. It looks like maybe 1 in 20 to me.

You're basing it off of views on a forum? That's it, that's your only measuring stick?

My point, using the drops of the 270 at various muzzle velocities, was actually to point out that even if you did order a custom turret with inaccurate data, you’ll still probably be accurate enough at 400 yards to put meat in the freezer. Let’s say the 270 ammo is actually 200 fps slower at the muzzle than the box shows, the error at 400 yards is 3.5” more drop. That’s probably good enough for many hunters (deer hunters, not woodchuck hunters).

My Dad was a very productive deer hunter, even up to 80 years old. He lived to hunt. He was, however, carefree about his 270 ammo. He used a mixed bag of Remington, Winchester and Federal ammo. And he mixed 130 gr and and 150 gr ammo of the non-matching manufacturers. It used to make me crazy that he just didn’t get picky about the ammo. And his scope was an almost prehistoric Bushnell. Probably the least OCD hunter in Louisiana, but he killed a lot of deer, and rarely missed. He’d be amused by our ballistics conversations and the distances we might shoot.

You two can re-read the title and the first post.

Maybe your reading comprehension will kick in. 603Country's has failed him as well.

Bobo, the 3.5” is the approximate additional drop at 400 due to 200 fps less MV of that bullet mentioned. 3000 fps vs 2800 fps, with POI at 200 yards. I used the same atmospheric conditions that I see here on my place. So, if the box says MV is 3000, where actual MV is 2800, and you have a 200 yard zero, bullet strike will be lower, as you’d expect, but not so much lower that the average ‘clueless’ hunter will likely miss the deer. And that assumes that the aforementioned clueless hunter would even take a 400 yard shot.

And that brings me to the ‘ethics’ of shooting game at 600 or 700 yards. That smacks of doing it because you can or because you think you can. That isn’t hunting, even if someone says it is.

Anyway, I was not making an argument. All I was saying is that published, on the box MV, really isn’t that important to your average deer hunter, within a reasonable range. Certainly it matters to long distance guys. But, how many serious long distance guys do we have here, versus just hunters like me.

I feel that’s a pretty fair measuring stick for hunters. As to this thread in particular, as with most of your threads, I would say it’s at least 50% of the people.

Believe it or not I agree with most of what you say, I just find it comical when you suggest anyone who doesn’t believe the way you do is stupid. I can assure that the vast majority of hunters are happy as can be to hit within 3.5” of poa at 400 yards. Vast. 95%. Yes. 1 in 20. I believe that.

Well, not exactly sure WTH you're mouthing off at me for, but I can offer this.......I've killed/culled well over 350 big/medium game animals, and seen at least that many more killed hunting with friends and hunters we had in our hunting camps over 15 years. The combined number of deer, antelope, aoudad bearing out those numbers, killed over 350 yards, is probably no more than 25 animals, and that's likely a stretch. All of this in what would be considered "open country".

I suppose you could call that 3.5” a guess, though I did use a ballistics calculator to get that number. And, surely that number would vary with different environmental inputs. Note that I did say that the 3.5” was approximate.

And what “first input” are you referring to? Is it the 3000 fps? If so, yes, I picked that good round number for the sake of comparison with the lower velocity.

I guess that if we don’t all go to long distance shooting school, we’ll starve to death.

Even if my numbers are not exact, my logic is solid. For some reason, that bothers a couple of ya’ll. Or maybe it’s just that I said it, since we have ruffled each other’s feathers previously.

I'm going with you are just looking for drama like you do every where else.

All same components, 143 ELD-X, same twist rate. The load in a 24" barrel tends to make 2750 to 2800 fps MV. Yesterday we got DOPE on a suppressed 16" barrel. The MV on it is 2500 fps MV. And it still ran out to 800 yards just fine.

Normally, I would have used a faster burn rate. But, more important to him was temperature stability and consistent shooting. H-4350 does well to fill the brass as well as its' known temperature stability. Though I need another 16" barrel to test some faster burn rate powders and see what happens. The powder won't fill the brass completely, but it likely will shoot quite consistent. There's a few powders I have in mind.

This equates to a 37.5 fps loss for every inch the barrel is shorter. As opposed to the rule of thumb of 20 to 25 fps per inch.

Hornady factory ammo, with the 143 ELD-X has 2710 fps published on the box. Every time we have ran it out to 800 yards, that has proven false, even from a 24" barrel. It is much slower than what is published on the box. Never trust published velocity, find out for yourself. So the Hornady ammo would have been pitifully slow in a 16" barrel.

FYI

I have shot out a .260 Rem in 2500 rounds. Then did the same with a 6.5 Creedmoor. Both were a 140 gr with a 2800 fps MV.

Yep, I would think all 6.5s at a given weight/velocity would burn out about the same. Going back to 6.5x55.