re: 7mm-08 vs 6.5 CM for youth

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The 7mm-08 will beat the 6.5cm in BC every day of the week.

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Only if you’re using 190 gr bullets.

He said BC which is ballistic coefficient.

The only 7mm that beats the ballistic coefficient of the 140gr 6.5mm bullet is a 190gr 7mm bullet.

And that’s why I’m holding to my theory of ultra fast, ultra flat for whitetails. 400 yards and in is point and shoot. No dials to twist.

Nothing like a Creedmoor thread to get some pussies hurt in the OB

This whole damn thread could have ended with the statement “both are fine”

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6.5 x 300 WBY

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I like it a lot. The nosler ones are more my speed.

For a kid though, none of this matters. I will throw another idea in there - whatever caliber you want with a supressor.

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He said BC which is ballistic coefficient.

The only 7mm that beats the ballistic coefficient of the 140gr 6.5mm bullet is a 190gr 7mm bullet.

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The 168 and 180 beat it also.

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The 168 and 180 beat it also.

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They do in nosler, I was looking at another. My apologies.

But I said it in the start of this thread. Either caliber would be a great round and both have taken a ton of animals.

wasn't trying to get in a pissing match.

It’s the concept of MPBR. Usually tops out in the low 300s for even very fast magnums, so no cartridge is gonna be exactly point and shoot for 400 yards, but the gist is that your hold is center mass within MPBR distance and you will hit vitals. It’s never going to be a high number with heavy for caliber bullets. This predates turrets and is more about minimizing any moving parts and sources of error, and favors flat trajectory above all else, the thinking being that any bullet is gonna kill if you put it in the vitals reliably. Jack OConnor popularized it and the 270 win with 130 grainers is the poster child.

I understand the concept, I’m just making sure I understand the proposal. This isn’t a shot at 257, I’m just making sure we’re not throwing around 400 as a point and shoot range lightly.

If you shoot the fastest production 257 cartridge available with a match bullet 3” high at 100, it’ll be 3.5” high at 200, zero at 300, and 9” low at 400. Oh and if you have a 5 mph crosswind you’ll need to hold 5” left as well.

I’ve been in hunting clubs where people are sitting in an office chair with a great rest, shooting deer through the guts at 70 yards. I just want to make sure people check their stuff with a chronograph and a ballistics chart before they assume any kind of point and shoot distance.

All of those numbers crater if you are shooting a 308. With a 165 accubond going pretty quickly, zeroed at 200, you are 1.75 high at 100, almost 8” low at 300, and 23” low at 400.