Trouble Shooting Misfires

#1 · September 27, 2020, 5:00 pm

I took my first 10 rounds of .40 off my new 550c to the range this morning to test settings. Disappointing results. Only 1 out of 10 fired. I inspected the misfired rounds and can see a very light primer strike on each. What are the steps for troubleshooting this on the 500c?

#2 · September 28, 2020, 12:17 am

If factory ammo works okay, you might be over-crimping. Try taking an empty sized case with just a primer and place it in your chamber through the ejection port with the slide locked back. Fire that and examine the primer strike. If the strike is not light, then that may be your problem.

#3 · October 1, 2024, 12:21 am

Did you try reshooting the ammo? If your primers are high the energy used essentially reseating them with the firing pin will cause a "light strike"

tomj44 has reacted to this post.