Originally Posted by jwall
Originally Posted by lapua6547
Bullets Trump Head stamp. .284 bullets have better BC. Period.


puah, I'm not being smart or sarcastic. I've looked thru THIS thread and don't see 'data' < unless it's in the other threads
you posted. I don't have time to go thru all those.
It appears PennDog did. Ok.


Originally Posted by PennDog


OK my bad - the “actual” data still shows minutia between the three (and all like them) at normal “hunting” distances. However, if this is what interests you by all means enjoy.

PennDog


FIRST of all. I have never bought 1 box of boutique bullets and I don't have need for them.
For the last DECADE +, 400 yds is my REALISTIC hunting/shooting range.

I stated early in this thread that the 270 - 280 is a wash.
^above P D "actual data still show minutia between the three...at normal hunting ranges."
NORMAL hunting ranges is ALL I'm talking about and use.

You said above, "284 bullets have better BC Period"

In normal hunting bullets for normal ranges I have not found that.

My loading books are dated (old). My newest is the Nosler #7.

277, 140 gr ---- .496 BC........,261 SD
284, 150 gr ---- .493 BC........,266 SD

Nos. doesn't have a 130 .284 to compare to 140 .277 .. SO.

I like and use H 162 BTSP in the 7 RM BUT nothing to compare BC & SD.

I'm NOT cherry picking.

If you push the 277 140 .496 BC at 3000, which I can/do AND
If you push the 284 150 .493 BC at 3100, which I HAVE done

the diff is minitua, The trajectory diff is a wash. Yes the 10 xtra grs 150 of the 284 shows up in KE but we understand the
effect of KE.

I know there are more and heavier bullets in the 284 bore but 160 grs is the heaviest I need.
(I have a 7 RM & 300 WM & 8 RM for heavier)


I have said many Xs over the years if you have a 270....you have a 280 and vice versa.

For Me, the 280 offers no advantage, I don't DISLIKE it.

I wrote a lot more THEN deleted it. I'm not writing a book LOL This states my take on the 270 - 280 discussion.

Jerry




Good morning my friend..... hope all is well with you. Me.... not so good. spitting up bloody shiitt from surgery.

Lets make this simple:

280 case capacity - 67.9 gr

.284 150gr eldx bc .574 BC

https://www.hornady.com/bullets/rifle/7mm-.284-150-gr-eld-x#!/


270 case capacity - 67 gr

.270 145 eldx .536 BC

https://www.hornady.com/ammunition/rifle/270-win-145-gr-eld-x-precision-hunter#!/


Kind of like my friends who are twin brothers - James and Gino. James is older by 5 min. He will always be the older brother.
The .280 has a greater case capacity and higher BC bullet. Like James, the .280 is the older brother.
However marginal, the numbers don't lie my friend....