280 Rem Loaded to 270 win Pressure

highoctane

Handloader
Apr 20, 2018
271
613
I'm sure this topic has been discussed as much as the grassy knoll shooter and I know the 280 Rem was hamstrung from it's inception with the auto loader that kept pressure down, however, the 280, in modern bolt actions, can handle the higher pressure of the 270 win.

I went to the range today and chrono'd a couple of my 280 loads. I said in an earlier thread that I really didn't care about how fast my loads were due to the ranges I shoot deer, (125-150 yds) but I was expecting a little better velocity, however, my 280 loads today were all "book" loads and were no where near the velocity of those book recipes. I understand the controlled environment, longer barrels etc play a huge roll in velocity but I also understand that those loads are shot and published to be safe and function in all firearms.

My question, are there any published loads for the 280 that take advantage of the higher 270 win pressure, or will I have to use 270 win data if I want to get to that higher pressure. I guess if push comes to shove I can always keep adding a little more powder and watch the chrono and case condition, which would be my least favorite way.
 
Don't shoot the messenger, but for a 280 Rem, I pretty much use a 10 grain lighter bullet load data for a 270. Meaning, if I have 140's for the 280, I feel pretty comfortable using 130 data for a 270 Win. All else being equal they are twins. I wouldn't just blankly do that across the board, but it's a very good place to start.
 
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