.223 oal?


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buz914
March 3, 2009, 06:24 PM
I'm new at this, so here goes

I have just made my first couple of .223 on my Dillon 650 and have a few questions.

Heres what I did.

Trimmed and sized with dillon trimmer to 1.750, case guaged out ok
Swaged with dillon superswage
Used 23.8 grains of AA2230
OAL is coming in from 2.207-2.215 (Is this an acceptable range?)

I could not go down to the 2.200 that Hornady recommends for their 55 gr FMJ-BT because I was at the very top of the cannelure

The hornady load sheet did not list AA2230 so I got that from the AA powder section with a 55 gr bullet

Does all this sound ok, any suggestions

Thanks

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Walkalong
March 3, 2009, 06:34 PM
Trimmed sized brass to 1.750?

Interesting that when the Hornady bullets are seated and crimped into the cannelure they can't match Hornadys O.A.L.. Heck, they should know. :)

I have some, but have not loaded them yet. My Winchester 55 Gr FMJ-BT's are seating to around 2.235 to 2.245. I just eyeballed a Hornady 55 Gr FMJ-BT against one of my reloads and it would be a tad shorter. How much I can't tell without actually seating one. It looked like .020 or even a tad more. So 2.215 to 2.225, or a bit shorter, like yours, sounds feasible.

Speer #13 gives 24.0 to 26.0 Grs AA2230 with a 55 Gr bullet and a standard primer.

I copied this:
2230 55 NOS B-TIP 22.5 2,773 25.0 3,152 51,000 2.230
from an Accuarate PDF from their website.

Welcome to THR

ants
March 3, 2009, 07:13 PM
Generally speaking, the OAL listed in load data is usually the MINIMUM overall length.
That means it is the overall length used when they shot the tests in the lab to collect the data.
It is not the recommended overall length. It is the minimum length.
You generally load longer to fit your particular circumstances (magazine, rifling, etc.).

HOLY DIVER
March 3, 2009, 09:11 PM
you should be fine with that load
i mostly use my sierria loading book
it has more info than my other loading books

Frankl03
March 3, 2009, 11:38 PM
Here's a guide for a 223 Cartridge. Your numbers are well within the numbers on the guide.

1.750 is good for case length. Thats what I use. I try to stay under 2.250 for OAL. I use these in an AR and they work great. I use to crimp rifle cartridges but now I don't. Its not needed.

http://www.6mmbr.com/223Rem.html

steve4102
March 4, 2009, 08:11 AM
You can find this on Accurate Powders load data as well.


SPECIAL NOTE ON CARTRIDGE OVERALL LENGTH “COL”
It is important to note that the SAAMI “COL” values are for the firearms and ammunition manufacturers industry and must
be seen as a guideline only.
The individual reloader is free to adjust this dimension to suit their particular firearm-component-weapon combination.
This parameter is determined by various dimensions such as 1) magazine length (space), 2) freebore-lead dimensions of
the barrel, 3) ogive or profile of the projectile and 4) position of cannelure or crimp groove.

buz914
March 4, 2009, 12:36 PM
Thanks for the info everyone.

I think I will seat my bullet a little longer to get in the middle of the cannelure and crimp lightly

BTW I fired 8 round of my reloads and they worked perfectly! It is pretty cool the first time..

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