.284 Norma or. 280AI for long bullets?

[loaders_loft]

What case would perform better for long bullets seated to 3.340 mag length? Assume a 30-06 is being rebarrelled to a sporter barrel at 24". I'm leaning toward the 284 but the reloading manuals all have .284win data that under states the performance due to deeply seated bullets.

 

[elkaholic]

Of the 2 named, the 284 would because you would have a LOT of bullet in the case with an A.I. If you didn't mind a magnum case, the Saum would be better than either (velocity wise). Of course, you would need a magnum bolt face for the Saum. You could also go 7 wsm or even 7 SS if you didn't mind a wildcat.

 

[Slick8]

A 30-06 should have a longer magazine then that. Given 24 inches and the short mag I'm going with the 284 win.

Since your going through a rebarrel you could have a wyatts box installed giving you 3.99". Then you could load a 280ai or sherman as long as desired. Assuming your building on a 700.

 

[6.5shaggy]

I have a long action 284 that runs 180 VLDS at 2940fps with 51.2 grains of RL17 seated at 3.185. Brass is Winchester and last 5 reloads. I have ran 175 sierra to 3150 but it was too hot in warm weather .

 

[loaders_loft]

Really? At what barrel length?

 

[cape cove]

I have a long action 284 that runs 180 VLDS at 2940fps with 51.2 grains of RL17 seated at 3.185. Brass is Winchester and last 5 reloads. I have ran 175 sierra to 3150 but it was too hot in warm weather .

What load are you using with the 175 Sierra.

 

[lancetkenyon]

I have a long action 284 that runs 180 VLDS at 2940fps with 51.2 grains of RL17 seated at 3.185. Brass is Winchester and last 5 reloads. I have ran 175 sierra to 3150 but it was too hot in warm weather .

3150? Or 3050?
I run the 175 Berger @ 3030fps in my 26" .280AI w. RL23. Hot, but no pressure signs. They were at 2975 until my barrel broke in. Still ridiculously accurate though.