Guess I am never satisfied and I love shooting something somewhat different. Here is the deal. I have a sweet shooting little 7-08 in a Sako L579. Guess I can't stand prosperity. Anyway, I want something different and am looking at either the 280, which I will most likely Ackley or a 284 win. I guess the 6.4-284 would be cool too.

What I want is a 130-140 grain bullet at min 3000 fps out of a max 24" tube. Whitetail deer is the primary target and I have a slew of those rifles. I am just into something different and I have a urge for something older. I am looking for a Browing FN to do this on if I can't find what I am lookig for.

What are ya'lls thoughts? If I go to build what would you build the .284 on? The .280 rem is easy. Any help would be appreciated.

JS

I could be wrong but isn't the long action a L61.

you are gonna try and compare three different rounds that shoot the same bullet weights and have the same case capacity.
might as well throw the 7 saum in there too.
wait thats the one i'd get actually.
just buy the 280 and save a bunch of money.
if you could live with an easy 2900
get you a 7 mauser ackley built.
it'll kill deer and elk just fine with the hornady plain jane 139 gr interlock.

I've tested the 280, 280rcbs, 280AI, 7mmJrs and my 280PDK in the same barrel. At equal pressure the AI will gain you about 1% velocity or 30-50fps. Build an AI if you want but a std 280 will get you most of what you want. I liked mrp. rl19&22 as well.

For me the 7x61s&h has the perfect capacity for a 7mm.

quote:

What I want is a 130-140 grain bullet at min 3000 fps out of a max 24" tube.

I read somewhere that there is a cartridge called the 270 Winchester that may be able to do this?

Husqvarna FN action in 6,5*55 or 270w? Can be rechamberd? to 6,5*284 or 6,5-06 a-sq.

They will all do that in a 23"-24" bbl. & long action. IMO, the 284 needs a long action to get the most out of it. My 280 in a 23"bbl will just hit 3000fps W 140-145gr bullets & delivers them into less than 1moa from a 7 1/4# rig. A 280AI would give you a bit more, but w/ the slight hassle of fireforming cases.

You'd be best going with the 280 AI, about perfect "bore" for the 7 mm. You can get 280 AI brass from Nosler, if you don't want to fireform.

Fireforming loads can be quite accurate and potent (if you don't try to form a false shoulder)


and the rest will depend upon your rifle and reloading, but it is possible to exceed 3000 fps with a 160 gr bullet and the 140 gr bullet to 3100 fps +. And I get multiple loadings out of my brass, have yet to have a primer pocket loosen on any 280AI load.

These are out of a 26" Hart barrel 1 in 8 twist but I would say getting your goal of 3000 fps out of a 24" barrel with 140 gr bullets would be a piece of cake for a 280AI.

[QUOTE]Originally posted by ramrod340:
I've tested the 280, 280rcbs, 280AI, 7mmJrs and my 280PDK in the same barrel. At equal pressure the AI will gain you about 1% velocity or 30-50fps. Build an AI if you want but a std 280 will get you most of what you want.

I have to agree with ramrod340 here. My personal observations have reflected similar findings with the 280AI.

quote:

Originally posted by enfieldspares:

quote:

What I want is a 130-140 grain bullet at min 3000 fps out of a max 24" tube.

I read somewhere that there is a cartridge called the 270 Winchester that may be able to do this?

My thoughts also.

I want something different.....something no one else has.....I want a wildcat.....hey...here's a new one.....a 7mm/.284!!!!!

I am shooting my 7MM-08 over my croney, at 2925 fps. with a 24' barrel with a 140 sierra B.T. you might get 3000 fps from a 280 rem. IM NOT getting that much from my brother in laws loading 56 grs. of IMR 4831, same bullet.
A 7MM shot at 2900 fps, zeroed at 200 yards is 20.5" low at 400 yrds.
A 7MM shot at 3000 fps, zeroed at 200 yards is 18.9" low at 400 yrds.
1.6 different.
i will take my 7MM-08 over any 7MM except the 7mags..and i dont need a mag.

If you simply want something different and or old build a 7x61S&H. In my opinion the most efficient capacity for a 7mm.

The 6.5 x 284 is a different kind of round, and will do what you are looking for. I'm not sure about your max magazine capable OAL, but if that works with your rifle, it is a really 'inherently accurate round' and offers the great selection of 6.5 bullets. It gets me one less round in the mag than the 270 though...

I agree with "fish". The 6.5/.284 is a really great round. I wouldn't hunt anything bigger than black bear with it. I have built 5 of them, 3 for the same guy in 3 different weights, P dog gun, deer rifle and mountain rifle. Berger makes great bullets for it, both hunting and target. It's at it's best as a long range rifle with 140 gr. bullets.....Tom

I have a .280 myself.As far as cost goes this would be the best way to go since AFAIK nobody still offers the .284 Win and I think only Nosler offers the AI chambering unless you buy a custom job.All three are nearly identical performance wise.

Not a Sako aficionado but I can't imaging a rifle company making one action and magazine box to cover .06 lenth and .308 length rounds all with the same length action and magazine.
How bout the easy route to individuality? Have a smith just run a .7MM-08 Ackley Improved reamer into your existing chamber and hog out the shoulders.
I'd be surprised to see less then 150 to 200 FPS of gain. There's your 3,000FPS with 140's right there.

Had a buddy with a 7-08AI and it was a dandy!

quote:

Not a Sako aficionado but I can't imaging a rifle company making one action and magazine box to cover .06 lenth and .308 length rounds all with the same length action and magazine.

Sako is one of the few rifle makers that build their actions to a specific group of cartridges. I can't stand those manufactures that chamber a rifle for 223 and use a 308 or 30-06 length action.

If you haven't played with a Sako AI action chambered for 222,223, 17 Rem, etc., you're missing out.
I had a beautiful custom 6.5-284 that was built on a L579 action. I felt it was a little too short for bullets over 120 grains. So next time I will go with a 6.5-06 on a Sako long action, i.e., L691 or AV, and I'll gain an extra round in the mag.

My vote is for the 280 if chambered in a US made rifle, or the 7x64 if the rifle is of European manufacture. I am kind of weird that way.


Lou

I built a 280 Ackley on a Sako L61R action 11 years ago.

You will get 100 fps more than a standard 280 Rem.

Here are some of my loads

VV N 165 61 Speer New SP BT 145 2960
VV N 165 62 Speer New SP BT 145 3030
VV N 165 63 Speer New SP BT 145 3045
IMR 4831 59 Hornady SP BT 139 3137
IMR 4831 58 Speer old SP BT 145 3122
VV N560 62 Nosler Acc B 160 3000
VV N160 59 Rem PSPCL 150 3050

You could just buy a 7mm WSM on nice Kimber or the New Winchester and get another 100 fps to most of the above loads.