6.5 velocity and seating depth

[Jmccracken1214]

I don’t have the exact measurements at the moment, but my 6.5 load is 42.8gr h4350, cci450 and berger 140 seating long. Barely fits in ctr mag and will not fit in aics mags unless binder plate is gone.
In my previous rifles, I was running 2795-2805fps, in my tikkas, it’s running 2690-2700fps.

the load shoots amazing in every rifle I’ve tried, but if I seat these bullets deeper, will that increase my velocity?

 

[MK3XXX]

Don’t Tikka’s run slow in general? Seating depth will change accuracy powder will speed bullet up but like I said everything ive heard says Tikkas run slow

 

[Ledzep]

Tikkas do tend to run slow. Seating deeper if you are near the lands will cause pressure to drop and velocity will drop also. If you seat WAY deeper you will eventually intrude on case capacity and cause pressure and velocity to rise again.

FYI, you're already over a grain over many published book loads, and using thicker (I assume Lapua) SRP cases than what the published load data was created with. SRP cases typically don't show the traditional pressure signs until over 70,000psi... Do with that information what you want.

 

[ck1a]

All of that info is good to me also. Thanks!

 

[skyrep]

I've found that seating the Berger Bullets .040-.070 off the lands have worked really good for me. I have a Tikka .308 but had it re-rebarrelled.