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Discussion Starter #1 (Edited)
Folks, We're having a not-so-friendly argument in the office about .284 case capacity. My friend says that the .284 case capacity compares to a .308. I say nonsense, that it compares to a '06. I cited a comparison (based on my Lyman manual, from my desk) to a .280 and a 7-08 w/the powder capacity, of IMR4350, when using a 139 grainer. He says that the case capacity, w/powder, when seating a bullet on it, doesn't relate to actual case capacity. What is correct?
 

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Folks, We're having a not-so-friendly argument in the office about .284 case capacity. My friend says that the .284 case capacity compares to a .308. I say nonsense, that it compares to a '06. I cited a comparison (based on my Lyman manual, from my desk) to a .280 and a 7-08 w/the powder capacity, of IMR4350, when using a 139 grainer. He says that the case capacity, w/powder, when seating a bullet on it, doesn't relate to actual case capacity. What is correct?
The case capacity of the .284 Win compares directly with the .280 and '06 (and any other '06 family member) Depending on how one measures capacity (full case or bottom of the neck) capacities will change to slightly more with a bigger caliber (bigger neck). The .284 is not related to the .308 family of cartridges at all. It's a case all it's own (originally) and has the diameter of a typical magnum case with a rebated rim. I'd suppose it could have been called a Short Magnum back in the day, but back in the day, magnums all still carried belts, even the short ones like .350RM & 6.5RM.

Capacity available will depend on the size of the bullet loaded as a larger bullet weight may intrude past the neck and take up "case space" over and above what a shorter, lighter bullet will.

as far as capacities, here they are in grains:

7/08= 52.2

.308= 53.5

.280= 68.6 (long neck)

30/06= 68

.270= 67.4

.284= 66
 

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The Troll Whisperer (Moderator)
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Winchester developed the .284 Win to have a 30-06 capacity case that would function in the shorter actions of their Mod 88 and Mod 100 rifles. The capacity of the two cases are very similar - not to be confused with the capacity of the shorter body .308's and related family of cartridges.
 

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Yep, some people consider the 284 Winchester to be one of the original "short-fat" cartridges, and to settle your office argument, you can show them the stats on this page:

Case Capacities
 

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Elk Whisperer (Super Moderator)
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Yes, and it was necked up, down and sideways just like the "06 case. A very versatile case for making something else on.

RJ
 

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I have a Lilja barreled 6.5 X 284 and it is a real accurate rifle with some great reach out at 400 yards and touch me qualities. The cases I have are approximately 66 grains capacity of powder.
Normbc9
 

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One of the best thing that ever happen was the 6.5x284 Norma COL @ 3.310" so had to be build on a long action.

Now you can have a 284 on a long action just gave new life to the 284.
 

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We have always been able to build any ??/284 cartridge on a long action, the beauty was with the short fat case, and the rebated rim, you could have any caliber you wanted with a 30/06 powder capacity, and case head, and would feed in a short action. just as the 243 and 308 size cases, sort of a first ever short magnum, years before the short magnums. But any action with a .473 size bolt face would work, and at that time most cartridges for big varmint rounds to non magnum big game cartridges such as 22/250 243 357 Roberts 7mm Mauser 308 35 rem. on and on and so many in between, could be converted with a barrel, a go gauge, and a reamer!!! A true classic!!
 

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We have always been able to build any ??/284 cartridge on a long action, the beauty was with the short fat case, and the rebated rim, you could have any caliber you wanted with a 30/06 powder capacity, and case head, and would feed in a short action. just as the 243 and 308 size cases, sort of a first ever short magnum, years before the short magnums. But any action with a .473 size bolt face would work, and at that time most cartridges for big varmint rounds to non magnum big game cartridges such as 22/250 243 357 Roberts 7mm Mauser 308 35 rem. on and on and so many in between, could be converted with a barrel, a go gauge, and a reamer!!! A true classic!!

Sure you could always build on a long action but most figured the 284 for a short action. Ruger build the 284 on their standard action and Browning build their 284 on a Sako Medium action (L597).


With all the good bullets now the 284 and wildcats of that case they are replacing the 6.5x284 in long range.

yes the 6.5x284 gave new life to the 284 on a long action with all the good 6.5x284 brass that can be necked up to 7mm. Until the 284 was put in a long action allowing the bullets to be seated out mid 2900fps with 180gr vld bullets was unheard of and 3000fps with 160gr bullets.

I'm getting 3048fps with 160gr bullets in my 284 on a long action. I've done the 6x284 and 6.5x284 and I have to say the 284 is a pretty easy rifle to tune a load for almost as good as my 6ppc.

I get on the 6br site forum and they have alot of good information from shooters on the 284 so what information you get is from guys who shoot the 284. I normally never comment on things I have never shot.
 

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QUOTE:Ruger build the 284 on their standard action and Browning build their 284 on a Sako Medium action (L597). end quote

I have a Ruger M77R in .284 Win from the mid '80s (tang safety) that I recently purchased NIB and it is not a standard length action, but a S/A, same size action as .308 family.
 

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QUOTE:Ruger build the 284 on their standard action and Browning build their 284 on a Sako Medium action (L597). end quote

I have a Ruger M77R in .284 Win from the mid '80s (tang safety) that I recently purchased NIB and it is not a standard length action, but a S/A, same size action as .308 family.

Well my Ruger 284 is on a long action and you can buy long action follower from Brownells Rugers factory part # KD0336 for the 284/6.5x55

MAGAZINE FOLLOWER, LONG ACTION - Brownells

You are right and I'm wrong they did make them on a med action but they made some long action ones also.
 
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