Calculating 6mm Ackley load data?

[Golfer]

How can I use published 6mm Remington load data to calculate loads for the 6mm Ackley improved?
Mike J's page states that the Ackley case has 9% more capacity which does not necessarly mean that I can increase powder levels by that much. What is a good percentage increase to work with?
Anyone got a favorite 6AI load with 87 V-Max or Berger 108 Match BT HP?

 

[swks]

I have shot one of these quite a bit, I am still not sure what is the correct load to use. I have tried LOAD FROM A DISC,which is probably the best I have used so far) WINLOAD, and the Powley load computer that has been converted to run on Excel. Some of the prgs will almost get you in trouble with too much powder. I cannot remember the loads I have tried, but some are pretty good, some stink. So far the Speer 70 gr TNT and around 49-50 grs of H414 work pretty good. Now remember this load works in my rifle, yours, well it may be too hot! WORK UP........... I also used 8 1/2 Win std primers. The 87 gr Hornady HPBT shot the worst. For some reason this barrel is hard to please. I have some other loads if interested. Please be careful.....

SWKS

 

[CatShooter]

How can I use published 6mm Remington load data to calculate loads for the 6mm Ackley improved?
Mike J's page states that the Ackley case has 9% more capacity which does not necessarily mean that I can increase powder levels by that much. What is a good percentage increase to work with?
Anyone got a favorite 6AI load with 87 V-Max or Berger 108 Match BT HP?

Here's some load data,from Sierra) for the 6mm AI.

Max loads for 85-87 gr bullets

,Start low and work up)

Powder,grains/Velocity)

IMR-4895 ,41.7/3300fps)

VARGET,40.3/3300fps)

XMR-4064 ,40.8/3200fps)

RE-15,41.5/3300fps)

760 ,46.3/3300fps)

IMR-4350,47.5/3400fps)

H4831SC,50.2/3400fps)

RE-19 ,46.8/3300fps)

IMR-4831,49.6/3400fps)

A general rule in Ackley cartridges is to use the max load for the regular version as a starting point for the improved version. It is good advice.


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