I am loading some .222 REM with 50 grain pills. My case length is 1.690" max length of 1.70. In Speers 14th ed manual it lists 24.0 grns IMR4320 as starting load and max of 26.0compressed. I can only fit 25.1grns in the case no matter how much i tap it down. I have saw several .222 loads on ammoguide as well calling for 26.0C as max. IMR's load data shows 22.5 as start and 25.0C as max. I'm not sure the extra .010 case length would be enough to fit the extra grain in there even. Anyone have this trouble before? This is the first load i've had trouble with using this manual. At 25.1grns the powder is at the very top of the case.

What type/brand of brass? The internal capacity of brass varies. The heavier the brass the less capacity it has. Military brass is usually heavier.

Winchester brass, I was just looking on Ammoguide reading the components for every load using IMR 4320 for.222 loads and you are right. Every load that states 26.0 grnsC uses R-P cases and the loads that say 25.0C grns as max are using winchester cases. I guess that answers my question. Thank you sir.

4320 is way slow for a 222

I also think that you should change to a faster burning powder so that the powder could fit the case. I also agree that the capacity of Winchester cases are larger than other cases. Try to get a few and test them.

I had some 4320 left but not alot, I am just trying a few different loads i havn't tried before. Playing if you will. I just didn't think remington cases had quite that much more capacity than winchester cases, or maybe it just shows up more in small cases where your nearly full.

quote:

Originally posted by butchloc:
4320 is way slow for a 222

quote:

4320 is way slow for a 222

There are any number of powders that will give you higher velocity and a lot less headaches trying to get the powder in the case.

I'm taking the advice, i'll think i'll save this to play with another caliber. I havn't been around long enough to know all the burn rates of various powders and what they best apply to, but i guess thats why i follow manuals. Anyone know who might have a powder burn rate chart? That may handy to hang next to the bench.

Here's one from Varmint AL

http://varmintal.com/pburn.htm

Another from reloadbench.com

http://www.reloadbench.com/burn.html

yet another from Hodgdon

http://www.hodgdon.com/burn-rate.html

Enjoy!

Almost every reloading manual has a relative burn rate chart in the reference section.

Type into google powder burn rate chart you will be amazed it will be right there under your nose.

Is the brass fire formed?? Often 1X brass will hold quite a bit more powder than a new one. Especially if the 1X brass is only PFLR or neck sized.

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Originally posted by Hunt-ducks:
Type into google powder burn rate chart you will be amazed it will be right there under your nose.

Did that and have it in hand, thanks.

quote:

Originally posted by wasbeeman:
Is the brass fire formed?? Often 1X brass will hold quite a bit more powder than a new one. Especially if the 1X brass is only PFLR or neck sized.

These are once fired full length resized with shoulder bumped .002. Case length is trimmed to 1.690, Max case length is 1.70

Well, if you're determined to use this powder, sounds like you need a drop tube. Which is a PITA. As posted, I'd consider other powder options. But then, if you've access to a Chrony, how much velocity are you losing by using the lighter load??

I am looking at reloader 10x and IMR 4227. they are at about 90% density.