From the beginning almost 5 years ago I started noticing a trend where WWB 9mm would not reliably work in my 9mm AR. Did not think much of it and just bought other brands which did work fine. I took a break from things for most of the last year and this fall got back into things. picked up more WWB and then started having the same problems all over again. Today I decided to look into things further and have made the discovery.
Comparing Winchester, Federal and Remington they are all mostly identical except for the Remington being about .030 shorter OAL. All the ammo being compared is regular FMJ ball.
Setting a cartridge into the chamber and measuring the protrusion both R and F are both about .115 protrusion. The Winchester is sticking out about .080
The bcg is coming full forward to the face of the chamber but not fully engaging on the Winchester. Visually I can see the entire length of the Winchester is tapered and measuring with calipers there is a slight taper and right at the top of the case it appears crimped around the bullet. Setting it into the chamber it appears to wedge itself in there without any assistance. all the other brands set in fine and if you tip the gun over they fall right out.
Other than borrowing a 9mm handgun from a family member I have no way of knowing if all this ammo (probably 2500 rounds) is total crap for all current 9mm platforms.
Comparing Winchester, Federal and Remington they are all mostly identical except for the Remington being about .030 shorter OAL. All the ammo being compared is regular FMJ ball.
Setting a cartridge into the chamber and measuring the protrusion both R and F are both about .115 protrusion. The Winchester is sticking out about .080
The bcg is coming full forward to the face of the chamber but not fully engaging on the Winchester. Visually I can see the entire length of the Winchester is tapered and measuring with calipers there is a slight taper and right at the top of the case it appears crimped around the bullet. Setting it into the chamber it appears to wedge itself in there without any assistance. all the other brands set in fine and if you tip the gun over they fall right out.
Other than borrowing a 9mm handgun from a family member I have no way of knowing if all this ammo (probably 2500 rounds) is total crap for all current 9mm platforms.