Gadget night at the range: MagnetoSpeed and Breech Seater

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Tonight I hit the range in full stride with two new gadgets in addition to my XCB rifle: A new in the box MagnetoSpeed V3, and an equally new Breech seater from Tim Malcolm aka Goodsteel.

Just to cover the MagnetoSpeed chronograph very simply: It works perfect with cast bullets, is very simple to install and use, and appears to be very accurate when I compare today’s loads with those previously shot and chronographed. After shooting I took the little SD card out of the display unit, hooked it up to the computer, clicked on the log file and Voila! it opened up the entire range session in Excel. Now I can tape the data on the targets along with the groups for more clarity.

The Breech Seater was a very interesting contraption, and from my limited use of it today I am starting to believe that breech seating helps accuracy at high velocity.

All shooting tonight was done with The NOE 310-165-FN bullet, lubed with White Label 2700+ (Carnauba Red)
First off I shot 2 strings with fixed ammo to confirm the velocities I posted in my previous post. I estimated that a load of 45 grs. W760 would give about 2550 fps, and tonight’s shooting showed the following chrono results:

Both ES and SD were within reasonable limits.
Then I shot a string with LeveRevolution. That’s when things started to heat up, velocity wise:

Very good velocities, spreads were a little more uneven. I’ll be trying to push this powder even higher to see if it’ll break 3000 fps with accuracy.

Breech seated reduced loads didn’t seem to have a large advantage over fixed ammo loads. I shot 2 strings with 13 grs. Unique, accuracy was about the same:

The most interesting experiment of the evening came when I attempted to shoot 5 cases pre-loaded with 56 grains RL22. This charge fills the case to overflow, so I have to put a “lube cookie” in the case mouth to be able to load the case:

Breech seating the bullet:

And the result was pretty decent:

All in all a very interesting night at the range, I’ll post more when I have more data to share.

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