30-378 How fast?

[Bigbear]

speed

so you haven't chronyed these loads.

 

[X-fan]

I Chrony'd the 26" 30-378, but wont publish the load as it is slightly over Hodgdons information.

A 300Ultra with a 26 inch tube will reach near 3200fps with the same bullet and powder BTW.

 

[pockets]

I did a load for a friend with 110 TTSX and H1000 in a factory barrelled Mark V. 4050 fps and .70" 3 shot groups. No pressure signs at all. I took it up to 4150 with hard bolt lift to see what it would do. Small window where it worked well though.