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6.5 Creedmoor Question

jpistolero02

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Minuteman
Nov 9, 2008
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Austin, TX
I was reading the 6.5 loads thread because I just ordered a new rifle. I am a little confused with the measurements people are listing. Some people are stating base to ogive of like 2.17" with a COAL of like 2.81". If I load to an ogive measurement of 2.17", I am much longer than 2.81" COAL with the 140 Amax. I went ahead and just loaded my test loads to 2.82" COAL to start. Is this a good place to try? Rifle is an AE MK III.
 
COAL can vary bullet to bullet (due to imperfections). The OGIVE is a more accurate way of measuring seating depth.

2.820 is a good place to start. Mine are at COAL 2.800 and OGIVE is 2.187 with the Hornady 140 AMAX.

You will have to test out your rifle since they are all different. Use a Hornady OAL gauge and then you can decide (based on load testing) how much of a jump you want...if any.
 
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I'd suggest you get an actual OAL to touch lands in your rifle, then jump the A-max 0.040" or so.

Most of the 6.5 Creedmoor chambers I've checked are INTO lands at 2.790" with 140 Amax, so 2.820" will be jammed roughly 0.030". I wouldn't recommend jammed for the A-max.
 
I looked up the info in my book. When I used the Hornady OAL, I got a initial measurement of 2.210 (I think COAL was at 2.823) on my brand new rifle. After load testing, I finally settled at an 2.187 OGIVE. My rifle likes that jump.

I have 3 friends all loading to a 2.820 COAL. I'm the odd ball.
 
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Maybe I am getting different ogive measurements because I am using a Sinclair body and inserts? With a COAL length of 2.820", I am getting a base to ogive measurement of 2.083". That is very different from what a bunch of you say with the 140 Amax.