284 win reload question

[shredder4286]

my hornady reload manual talks about some of the downsides to reloading the 284, more specifically how the bullet has to be seated deep in the case in lever and autoloading actions to fit their magazines and actions. It then goes on to talk about how "modern lever and autoloading actions are strong, but their camming action may make case extractions difficult with maximum loads." exactly what malfunction would this cause to where the casing would not extract?

thanks in advance

shredder

 

[Steve C]

exactly what malfunction would this cause to where the casing would not extract?

Brass expanding tightly in the chamber from high pressure causing the case to become hard to pull out.

If you do proper load development you will load a sample batch of bullets from the start load listed or calculated by reducing the maximum load by 10% and increasing the charge level by 2%. Take them to the range and test them on paper sequentially from the lightest up and see which load produces the best accuracy. If pressure signs appear or extraction becomes difficult then you've found the previous load is the maximum limit for your rifle.

 

[shredder4286]

Brass expanding tightly in the chamber from high pressure causing the case to become hard to pull out.

If you do proper load development you will load a sample batch of bullets from the start load listed or calculated by reducing the maximum load by 10% and increasing the charge level by 2%. Take them to the range and test them on paper sequentially from the lightest up and see which load produces the best accuracy. If pressure signs appear or extraction becomes difficult then you've found the previous load is the maximum limit for your rifle

ok, so what the book is saying about the rifle's actions is that they're strong, but the camming isn't enough to pull the casing out once fired. yes?

thanks for your response, btw

 

[rcmodel]

Yes exactly.

Most Bolt-actions and military design semi-auto's like the AR-15 have a primary extraction feature that allows the first movement of the bolt to either break a tight case loose from the chamber, or else pull the rim off the case.

It's a matter of "somethings gotta give" when you crank on the bolt handle.

Lever-actions have no, or very little primary extraction power, and if the case won't come out easily, it won't come out at all without a cleaning rod to knock it out.

rc

 

[shredder4286]

so, when the book talks about "camming"- what's it talking about?

 

[rcmodel]

Yes.


BTW: Your concerns about the .284, and all Hornady says about it is way over-blown.

Gun writers of the time when it was introduced in 1963 were it's reason for being a relatively short-lived caliber. First, they all hated lever & semi auto rifles with a passion then.

Second, everyone had to have something to say to write about them.
So they said the neck was too short to long seat bullets in standard length bolt-actions, and lever/auto actions would not extract over-pressure loads that stuck cases in the chamber.

So what?

Enough over-pressure to stick cases in a lever-action is just as bad in a bolt gun. If you are sticking cases, you are loading too hot, period.

The .284 Win was designed to duplicate .270 Win performance in the shorter Model 88 lever-action & Model 100 semi-auto hunting rifles.
It did just that just fine.

Don't worry about reloading it.

rc

 

[jerkface11]

Look at how the bolt on a bolt action actually opens. You raise the handle a couple of inches and the bolt only moves back a fraction of an inch.

 

[shredder4286]

ok. i will when i get back to the states in a couple days- thanks for the input

 

[depoloni]

I'm blessed enough to have a .284 Win-chambered k98 Mauser, rebarreled. The barrel, a medium-taper 24", is stamped simply and reads "P.O. Ackley 284".

Bought it at an estate sale. The throat in this baby isn't chambered "deep" by any standards but I can seat most bullets out .050"-.080" over the book load recommendations. Shoots lights out too. It does everything it should (my mag-length is plenty long given the setup) loaded as-such and then a little more, but I stay away from bullets heavier than about 160 grains. I have a lights-out load with 120 TTSX (or TSX) bullets that do anything the heavier 175's would anyhow if you're looking for ideas... go lighter and tougher.

The (two) other guys I know with a rifle in the unpopular 284 both love theirs too, despite their setups forcing deep-seated bullets in the heavier weights. But both have had no issues provided they (you!) don't get too excited about trying to make it into a 7mm mag.