Recent content by imforguns

One big difference is the Mag-speed only gives one velocity at the muzzle. The Lab radar give velocities at multiple ranges and with that you can calculate the BC to get more accurate bullet performance. Very rarely does the advertised BC match the tested BC.

From the photo of the four cases if you measure from the base to the mark there appears to be a slight difference. Also if the chamber had a nick like that I would expect the case would show some drag marks. Three options . One borescope. Two chamber cast. Three remove the ejector and fire a...

Bore erosion has more to do with case capacity to bore ratio than the friction caused by the bullet. Coating the bullet or the barrel would help barrel ware. When the powder ignites its like a blow torch. More powder more heat. The hotter the barrel get the faster it the throat erodes. You can...