Home Forums Reloading Big Game Rifles Runout question

I'd also like to point out - all these runout numbers people throw out don't mean much unless you know where on the cartridge or bullet it was measured. Taking a measurement near the case neck is a lot different than at the tip of the bullet. And if you measure near the tip of the bullet, it makes a big difference if you're loading something short like an 85gr SPT, vs a long bullet like a 105gr VLD; the longer distance from the case neck to the bullet tip can result in larger apparent runout value than a short bullet with runout at the same angle.
Or, there are runout gauges that balance the cartridge base and bullet tip, and measure runout near or on the case neck; that gives a very different runout value.

So with that, where are you guys measuring runout, and how are you keeping the measurement consistent and comparable?