Author Topic: ? about C.O.L.  (Read 410 times)

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Offline Possum

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? about C.O.L.
« on: June 26, 2003, 04:51:07 PM »
Is the C.O.L. listed usually the distance between the ogive (sp?) and the base of the brass?  What about when they list the minimum overall length?  What do you do if you don't see a developed load for the combination of bullet/powder you are using?  What I mean is I am loading a 30.06 cartridge with the Remington Core-lokts and Nosler BT.  Each bullet is different and therefore would have different seating requirements based on where the seating die touches the bullet.   I just don't want to get too deep on the bullet and increase the pressure too much.  Is this a valid concern?  I guess I could buy a different reloading manual for each manufacturer, but that seems kind of ridiculous.  Can someone share the proper procedure for determining minimum seating depth?

Offline KN

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? about C.O.L.
« Reply #1 on: June 26, 2003, 05:35:07 PM »
Usually the OAL listed in the manuals is the longest length that will fit in a factory magazine. Your OAL may varry depending on how close to the lands you want your loads. I have found that in most instances if you want your bullet to almost touch the rifling it will be too long for a magazine. Thus you basically have a single shot. If you really want what each manufacturer recomends then you will pretty much need their data. Personally if I want to use a megazine I usually just load to the OAL max for that calliber and go from there. I do chamber check it first to see how far off the lands I actually am to start with.  KN