308 oal

[JeffreyDeGraff]

Trying to learn about OAL and why it's a pain in my back side. It would be great if they published a minimun and a maximun CMark

Every day is a good day. Some are just better than others.

They can’t put a maximum out there, because every rifle’s throat is different. So you either have to load to what the book says or measure the throat to find a maximum for that particular rifle.


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[Mburgus]

I think you're talking about what I call, the jump space. I am talking about COL. Like the .223 OAL is 2.260

Mark

Every day is a good day. Some are just better than others.

[Mburgus]

His AR10 is 3.240. And his AR15 is 2.900

Mark

Now I think I'm confused

What did your comparator say the max OAL can be?


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Every day is a good day. Some are just better than others.

[JeffreyDeGraff]

I think you're talking about what I call, the jump space. I am talking about COL. Like the .223 OAL is 2.260

Mark

Every day is a good day. Some are just better than others.

If I’m following you correctly, I am referring to “jump space”. That space dictates how far out you can seat your bullet. If you seat your bullet to the OAL that the manufacturer says to load it to, then you will be safe with more jump space. If you seat your bullet farther out than what the book says, it will reduce the amount of jump space. For AR style rifles your max COAL is usually limited to magazine length. When I load for my AR’s I just go with what the book says and don’t bother with measuring for max. In this case it would be 2.700”.


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[Mburgus]

I am wondering why no min, only max col

Mark

I'm looking at load data for 308 winchester.
Max OAL is 2.810
Recommended is 2.800
To hit the middle of the cannelure is 2.713

A buddy of mine wants me to reload for his 308 He bought some "old" dies at an auction. He told me that he will buy the primes, powder, and the bullets (from Sage of course). So now I'm trying to figure out what depth to set them at.

Mark



Load data from Hodgdon online data for H4895

Every day is a good day. Some are just better than others.

[Wes Sage]

The minimum can be all the way to the specific ogive of the bullet being used. Just remember as you seat the bullet deeper, pressure goes up.
They can't test every bullet for every depth as is would cost too much, and would be a waste of their resources.

Max COAL is usually BS too, it is usually just Mag or box mag lengths.

I am wondering why no min, only max col

Mark

Every day is a good day. Some are just better than others.

[Mburgus]

I guess this means I'm going to need more bullets.

Thank you
Mark

Every day is a good day. Some are just better than others.

[handcannon]

Load data from here http://www.hodgdonreloading.com/data/rifle

.308 150gr Hornady FMJ-BT W/C (500CT) PRE-PACKAGED SPECIAL

He wanted CFE223 But I told him that it is temp sensitive So now H4895

Mark

I load that same exact bullet with that same powder for my AR-10. I get good accuracy from that combo.