November 4, 2008, 07:38 PM | #1 |
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C.O.A.L.???
I am in the process of loading some Nosler Accu Bonds for my .25-06. Nosler does not state a C.O.A.L. for this particular projectile. Do I just load it to the Max SAAMI length, or somewhere shorter. If so then where do I start? I have some factory federal rounds that are loaded with Accu bonds but they have a cannelure. Should I use that as a reference? I am at a loss here. Any help would be great. Thanks
Why do some manuals list a C.O.A.L but nosler doesn't???
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November 4, 2008, 08:49 PM | #2 |
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"Why do some manuals list a C.O.A.L but nosler doesn't??? "
Because it's non-critical. Pick an OAL that feeds through your magazine and develope you load from there. That's what the loading books do. |
November 4, 2008, 09:06 PM | #3 |
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Just use the OAL given in your manual. The maker of the bullet doesn't matter.
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November 4, 2008, 09:46 PM | #4 |
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Not quite. If you have bullets with cannelures, you usually want to seat to the cannelure for crimping for duty and not the use the SAAMI COL where it is longer. Hornady makes a number of cannelured bullets that seat shorter than SAAMI COL, for example, and you want to observe the maker's lead in that case. SAAMI COL is just a number guaranteed to fit in all commercial magazines without rubbing.
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November 5, 2008, 08:10 PM | #5 | |
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Quote:
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November 5, 2008, 09:20 PM | #6 |
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OAL is not manual specific, it is rifle specific. Find out where your bullet of choice contacts the lands and go from there.
This is what Accurate Powders has to say about OAL. 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. |
November 7, 2008, 02:59 AM | #7 |
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When i am reloading and its time to seat bullets for any of my rifles i never take notice of what the manual specifies.
Firstly i look at making sure it fits in the magazine, this usually applies to bigger cals like my .300wm. I am always governed by my mag length. In my varmint rifles i have them seated about 15 thou off lands, except for my .222. It likes to have a little free travel for some reason.
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