How compressed is too compressed?

[Jfjfrye]

How do you know if the load is too compressed? I’ve heard some compression is great for accuracy. 300wsm. 67gr h8831sc and 190cx @ 2.860 COAL has me questioning because it seems very compressed and crunchy.

 

[Rolando]

I use quick load and don’t go beyond 103% case capacity personally

 

[Chris in TN]

If it'll seat and stay seated, I'm fine with it. I've had my 6,8spc handloads (110 vmax and N133) push back out of the case. A second seating seemed to solve the problem.

I have a bunch of N565 and I had planned to shoot it in the kids' 6.5cm but I simply cannot get enough of it into the case to make any sort of decent speed. I bought a powder funnel but haven't tried it yet. But in general it's gonna be really hard to really put anything together that's much over maybe 105% load density.

 

[jlchester5045]

Yeah avoid anything that’s pushing the projectile back out. Secondly, if your compressing powder that much, there’s probably a better powder selection with a more suited burn rate to play with. Give us some reference of cartridge, powder, projectile, and charge weight.

 

[greyghostnw]

Can use a powered tooth brush to settle powder in case. Use the back of brush and tickle the case.

 

[Jfjfrye]

Yeah avoid anything that’s pushing the projectile back out. Secondly, if your compressing powder that much, there’s probably a better powder selection with a more suited burn rate to play with. Give us some reference of cartridge, powder, projectile, and charge weight.

It’s in the original post

 

[Jfjfrye]

Can use a powered tooth brush to settle powder in case. Use the back of brush and tickle the case.

I like that!

 

[Jfjfrye]

If it'll seat and stay seated, I'm fine with it. I've had my 6,8spc handloads (110 vmax and N133) push back out of the case. A second seating seemed to solve the problem.

I have a bunch of N565 and I had planned to shoot it in the kids' 6.5cm but I simply cannot get enough of it into the case to make any sort of decent speed. I bought a powder funnel but haven't tried it yet. But in general it's gonna be really hard to really put anything together that's much over maybe 105% load density.

I’m going to double check seating tonight and see if it stayed. These loads are more or less using extra components that I have laying around just to fireform the rest of my new brass to then load with the good load I use.