264 win. Velocity with hammers ???

Warpspeed!

Go here at 6min mark for great info, 6.5prc < 264 and 6.5RPM, and 264 and 6.5 RPM are pretty equal if comparing apples to apples (same weight bullets, similar barrels - length/twist)

Here is the Easy Button for Hammer load information.

tribb said:

This may have been posted before I'm not sure I looked and couldn't find it. I'm looking for input on expected velocities in a 264 win Mag with a 26" bartlien 8 twist barrel using Hammer bullets 124 grain Hammer hunters and 134 grain stone hammers. Wondering also if it will be usefully faster than a 6.5 PRC? Thanks for your help. Tribb

Click to expand...

We have not shot the 264wm much. I think there has only been one that we loaded and it was with the 129gr Absolute Hammer. We got about 3500 fps with this one. I think you are going to run pretty close to the same as the PRC. I'm hoping you will see about 3400 fps with the 124gr Hammer Hunter and about 3300 fps with the 134gr Power Hammer.

RockyMtnMT said:

We have not shot the 264wm much. I think there has only been one that we loaded and it was with the 129gr Absolute Hammer. We got about 3500 fps with this one. I think you are going to run pretty close to the same as the PRC. I'm hoping you will see about 3400 fps with the 124gr Hammer Hunter and about 3300 fps with the 134gr Power Hammer.

Click to expand...

Do you think you could get close to 4k with the 97gr Absolute Hammer?

I don't think you can stuff enough powder in a 264WM to hit 4000 fps. I've gotten the 85HH over 4000 in my 6.5-300 Wby, but it took 87 grains of N560 to do it. I think 3750 to 3800 is possible with the 97AH.

I bet something a little faster in the H4350 range may do it.

Shane Lindsey said:

I bet something a little faster in the H4350 range may do it.

Click to expand...

interesting!!

N- 555 or 550 should work well.

At this point we are measruing green vs red lazer beams

With a 32 inch barrel I shoot 123 gr absolute hammer @ 3300 fps over 70 gr of Retumbo. That's an accuracy load in my rifle, not a full load. With (soft - headed) Norma .264 Win Mag brass I start showing ejector marks at 3450 fps - experience tells me that at that pressure I'll only get a couple of firings before primer pockets start to loosen.

With Peterson 7mm Remington brass necked down to 6.5 mm, my experience is I could shoot another 100 fps with no pressure signs and good brass life.

With slow powder, a 26 inch barrel will shoot about 150 fps slower than a 32 inch barrel.