hole saw
Member
my 9c has the same cut and i shoot a lot of reloads never seen a problem with any primers flowing. Hope SW get your problem resolved!
Stupid Shield 9..
- Thread starter Old Unk
- Start date
Interesting. OK so many of you have the tear shaped place at 6 o'clock on the FP hole of your M&P's and have experienced no problems with primer flow or irregular FP indentation on the primer.
I went and looked at my striker-fired Glocks who use a rectangle shaped FP. Does the 9 Shield use a ROUND firing pin nose? Have never looked at a Glock FP primer strike but on my to do list.
When the defect OR FP hole relief cut was first mentioned here I thought maybe it was just tool chatter on the bolt face when starting to drill the hole.
Maybe I'm just getting old but am sure used to round FP primer indentations and no primer flow.
I'll talk with S&W early next week.
Appreciate the comments.
Best.
I went and looked at my striker-fired Glocks who use a rectangle shaped FP. Does the 9 Shield use a ROUND firing pin nose? Have never looked at a Glock FP primer strike but on my to do list.
When the defect OR FP hole relief cut was first mentioned here I thought maybe it was just tool chatter on the bolt face when starting to drill the hole.
Maybe I'm just getting old but am sure used to round FP primer indentations and no primer flow.
I'll talk with S&W early next week.
Appreciate the comments.
Best.
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Jyezahn
US Veteran
My 40c has the teardrop at 6 o'clock. Definitely looks factory intentional.
Coastie762
US Veteran
I have four M&Ps; two full size and two compacts, one each FS and Compact in 9mm and .40 (with .357 Sig barrels for the .40s). All have the relief cut. Marking of the cut occurs on primers fired in all four pistols. As far as I'm concerned that is a normal condition.
I remember the first time I saw a 9mm case fired from a Glock in the late 80s. I picked some cases up at a range and wondered *** made a rectangular firing pin mark...
I remember the first time I saw a 9mm case fired from a Glock in the late 80s. I picked some cases up at a range and wondered *** made a rectangular firing pin mark...
team sidewinder
Member
To answer your question. Yes the FP is round on the M&Ps
OpsMgr
US Veteran
Have the tear shaped cutout at 6 o'clock on the FP hole of my early production Shield 9mm. I collect and examine all my brass - Nothing unusual with any of my brass...
robkarrob
Member
Old Unk
Your OP was that you had a defect in the bolt face on your Shield 9. So I thought it was a defect in manufactruring from S&W. Now after reading the other posts, I examined my Shield 40's slide. If what you are referring as a defect, is a slight undercut at the bottom of the opening for the striker hole, then it is not a defect, but an engineered relief machined into the bolt face. My Shield 40 has the "V" shaped relief cut into the bolt face. It is about 1/32 inch long, and 1/64 inch deep at the circumference. It tapers into the circumference of the striker hole.
Bob
Your OP was that you had a defect in the bolt face on your Shield 9. So I thought it was a defect in manufactruring from S&W. Now after reading the other posts, I examined my Shield 40's slide. If what you are referring as a defect, is a slight undercut at the bottom of the opening for the striker hole, then it is not a defect, but an engineered relief machined into the bolt face. My Shield 40 has the "V" shaped relief cut into the bolt face. It is about 1/32 inch long, and 1/64 inch deep at the circumference. It tapers into the circumference of the striker hole.
Bob
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MichiganScott
Member
All of my primers smear into the relief cut on the slide regardless of bullet weight and whether or not they are +P. This is on three separate M&P 9mm pistols.
It's all normal Unk. Call them on Monday and they will have you send in a pefectly good pistol and keep it for three weeks before returning it to you with a note saying that it is within spec.
It's all normal Unk. Call them on Monday and they will have you send in a pefectly good pistol and keep it for three weeks before returning it to you with a note saying that it is within spec.
I figured it out Unc!! I looked at several of my 7-8 M&P's... all have the same machined out spot at 6pm... Sooo, I think you should contact Glock and all the other manufacturers about the defects in their slides!!! 
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