I'm at the very beginning stages of load development with a 6.5 creedmoor. The rifle has a detachable magazine that will allow a load length of 2.860". After doing my max oal measuring, the max oacl for this rifle and the 140 gr bullets I chose is 1.100" longer than the magazine would allow. Hell its nearly an inch longer than the case with the bullet barely touching the neck much less seated. Has anyone encountered a 6.5 creedmoor with this long of a throat?
6.5 CM
- Thread starter koonazz
- Start date
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Kmccord
Well-Known Member
I guess I am not understanding what you are saying, you mentioned the magazine is 2.86 and you are saying you have 1.1 inch of freebore?? You are measuring 3.96 for a COAL?? Are you sure you are measuring this correctly? Are you using the Hornady guage or are you using the Alex Wheeler method to find the length to the Lands?
Kmccord
Well-Known Member
Hmm, what manufacturer?
Kmccord
Well-Known Member
I will break out my Creed and see what mine is, I cannot remember off the top of my head.
Did you zero out your calipers before you measured?
Kmccord
Well-Known Member
With that much freebore I am not surprised, I thought I had wrote it down, but just checked my notes, but I didn't, I am using Berger 140 gr EOL, my AICS mag length is 2.867", max length a bullet would fit in the mag. However, in my rifle, you cannot feed the action with that length, the tip of the bullets will hang on the action feed ramp. The magazine follower is 2.84, I have to run the 140's at 2.810 so they can feed without hanging on the action ramp.
snox801
Well-Known Member
Boy with feebore like that you should get some amazing speed!
Like a weatherby.
Like a weatherby.
Kmccord
Well-Known Member
If you look at load data on the net, you will see COAL from Berger at 2.80" for the 140 EOL.
Absolutely! Might not be able to hit the broad side of a barn but it'd be fast. Lol
Yessir. When I took my first measurement I just knew I had to have done something wrong so I started checking and double checking everything.
I believe I'm gonna tell him I don't feel comfortable loading for it as it is now. I don't know all the different problems that could develop from that much freebore. Gas escaping around the bullet, major throat erosion, bullet cavitating before entering the bore, I just don't know enough to feel comfortable loading for this gun.
