Less than 100% case capacity

[chas442]

I recently posted a question regarding case volume between manufactures of cartridge cases. I got some really interesting responses.
Now, if one loads a case to say 90 to 95 % case capacity with the same powder charge. The 90 to 95% is just an arbitrary number depending on powder. The variation being case volume from case to case not powder charge. If the muzzle velocity difference is relatively consistent, below 50 fps difference at 2700 fps.
Does it matter if the case is not full or that the case volume is not equal when shooting at 100 yds?

 

[Bart B.]

What cartridge are you reloading?

Are all cases the same make?

 

[chas442]

I'm loading 308 and 30.06. I've got all the brass grouped by manufacturers. The largest groups are R.P. I have about 250+ in each caliber and a lot in CCW and PMC.

 

[chas442]

I also have about 250 L.C. in 30.06

 

[chas442]

Just so you know, all the 308 was prepped the same way and same die setting as was the 30.06. All trimmed to same length.

 

[Bart B.]

I'd shoot each lot with at least 90% density. They'll do just fine.