7x57 col length ?

[DEACONLLB]

Does any one have a factory loaded 7x57 shell that you could give me the overall loaded round length in looking at all my reloading books I come up with lengths that will not chamber. Lee calls for a 3.065 but wont chamber in my MGM barrel and will not chamber in my Ruger number 1. One member told me how to check and I did that and The MGM chamber is 3.000 so would need to back off at least 10 thousand The Ruger chamber is 3.035 and wont chamber a 3.065 same bullet on both 120 grn seirra so I am wondering if that is a misprint in the lee book?


Deaconllb

[stimpylu32]

My Lyman 49th lists a
 
COL of 2.945" for a 120g jacketed SPT and a Max COL of 3.037" with the 162g jacketed BTSP

With an Ave. COL of 3.000" and a Trim length of 2.225"

stimpy

PS --- My guess on the Lee data is that it came from a factory Mil. Spec. round with its longer bullet but a more tapered Ogive .

[wncchester]

There is no magic in book or factory OAL, find what works in your rifle and  use it.

[DEACONLLB]

So far this is the only round that I have had any problem with but you are right I have found what fits and that is what I have been doing

Deaconllb