4n2t0

As already mentioned a bunch of times you definitely have a primer problem. It would be interesting to know if all/most of the dud rounds were loaded into the same brand of brass (e.g. S&B brass). I still think you have a high primer problem which is so slight that it may be difficult to see with the naked eye. After reloading set your completed rounds on a flat surface (right side up), rounds which wobble when placed on the flat surface have high(er) primers.

You haven't been reloading long enough if you've never had a dud round.

How do you know the primers are fully seated? Did you re-strike any of the duds? If they go bang after a second strike then the primers aren't fully seated. What primer brand are you using?

SD at pistol distances doesn't matter all that much. For lack of a better description SD is a measure of velocity uniformity. If you have a SD of 15 that means you'd expect 68% of your shots to be within +/- 15 fps of the average velocity. Within 20 yards you'd be hard pressed to see a difference on paper between a SD of 7 and 15. Remember, SD by itself is not a guarantee of acceptable accuracy, it's a good indicator but there are other factors which affect accuracy. Some powders meter well, CFE being one of the better metering powders. For static I rub the inside of the powder measure with dryer sheets. Some areas and seasons are worst for static than others. You're still overthinking all this...

Well it sounds like a bullet profile "issue" but as previously mentioned 1.07 can (and will) be safe. Use up what you've got and move towards a more rounded profile. Being from Canada I cannot make a useful brand recommendation but someone should chime in shortly.

The round is too long? Also, where are you getting your data from? Here's what I could find from https://shootersworldsc.com/ :

Your barrel(s) will determine the OAL. The only thing you can do if you're not comfortable with the short OAL is change bullets. I'd triple check that measurement though. You crimp measurement looks good, so it shouldn't be causing you any problems This isn't an apples for apples comparison but the plated 147gr FP I load at 1.09 for my CZ will easily pass at 1.15 for my M&P. Are you sure the bullets hitting the rifling? Could something else be stopping the spin portion of the test? What about progressively shortening the OAL from 1.15 to 1.07 to see when the round sits flush. Here's a picture to help explain my babbling: Hopefully someone who loads the same bullet will come along and confirm that its profile demands a "shorter than normal" OAL.

That sounds very short for an M&P, are you sure something else is going on there? Not that 1.07 is a problem but I'd check that measurement because my M&P 2.0 has a very generous chamber.

He is changing one thing at a time!!! Going over the max to 5.2gr can be avoided by shortening the OAL.

I'm not arguing either just noting that it may be significant if it helps him add some buffer room over the PF bar without needing to add powder. I agree that something's definitely wonky, unfortunately it's driving him nuts, lol.

Define significant. He may get 25-40 fps more velocity, maybe. That may be enough for him to comfortably make power factor, if not with 4.8gr than definitely with 5.0gr.

Hopefully I don't confuse you, especially since I'm the one that suggested finding the max OAL for your barrel(s), but you can safely shorten the OAL to squeeze some velocity out of the load. The reason knowing the max OAL for a particular bullet/barrel combo is important is because you don't want the round to be too long for the chamber, duh, but shortening it is completely acceptable. Don't go stupid short, for a 125gr projectile I'd probably use 1.10 as the floor. Maybe try this: 10 x 4.8gr of CFE pistol at 1.13 10 x 4.8gr of CFE pistol at 1.12 10 x 4.8gr of CFE pistol at 1.11 10 x 4.8gr of CFE pistol at 1.10 Chrono from longest to shortest always checking for signs of over-pressure (although I doubt you'll have any problems). See if the shorter rounds get you the velocity you're looking for while remaining reliable.

You don't have a bad case of primers. You're probably missing something because you're trying not to miss anything. Load rounds, chrono rounds, add powder until the desired PF is attained, done. I think you're overthinking the whole thing. P.S. Maybe it's the chrono, lol.

1) Load to the shortest OAL, that way it will/should work in either pistol. 2) Don't take this the wrong way but you're all over the place, this isn't all that difficult. Since you have an OAL (1.14) that works in all your pistols (for that specific bullet) you should make three sets of 20 test rounds using CFE Pistol. Start with 20 rounds at 4.6gr, then 20 rounds at 4.8gr, lastly 20 rounds at 5.0gr. Don't mix and match components or change the OAL half way through the process, make them all the same. Chrono the loads, see what works and run with it. 3) Much is made about powder selection but the truth is that many powders from slow(er) to fast(er) can work well in 9mm. I load WSF which is considered fairly slow for 9mm minor but it's what I like and very accurate. I guess what I'm saying is that there's no reason to abruptly abandon CFE pistol, you have it so you might as well use it! If you want to move to something faster next time (Titegroup, HP-38/231 [they're the same powder], N320 etc.) then start the process all over again.

Here's an example of how the OAL might affect velocity: The OAL published in manuals/data is completely useless, always find your own OAL: How to determine a pistols max OAL

I'm pretty sure most people understand that on paper all that looks great but in the hand one cannot perceive the minute recoil difference between WSF and TG when loaded at 130 PF. P.S. WSF stayed pretty consistent for me on the low end. FIREARM BRASS PRIMER POWDER LOAD PROJECTILE OAL AVG ES SD PF TEMP Ruger SR9/9E Mixed Fiocchi WSF 3.9gr CamPro 147gr RNFP 1.135 870 27 10 127 27° C Ruger SR9/9E Mixed Fiocchi WSF 4.1gr CamPro 147gr RNFP 1.135 902 25 8 132 27° C Ruger SR9/9E Mixed Fiocchi WSF 4.3gr CamPro 147gr RNFP 1.135 943 26 8 138 27° C P.P.S. Here's my TG data which was used for the calculations above. FIREARM BRASS PRIMER POWDER LOAD PROJECTILE OAL AVG ES SD PF TEMP Ruger SR9/9E Mixed Fiocchi Titegroup 3.2gr CamPro 147gr RNFP 1.135 834 30 10 122 27° C Ruger SR9/9E Mixed Fiocchi Titegroup 3.4gr CamPro 147gr RNFP 1.135 865 18 5 127 27° C Ruger SR9/9E Mixed Fiocchi Titegroup 3.6gr CamPro 147gr RNFP 1.135 900 8 2 132 23° C

Take the tin foil hat off and tell him/her you shoot, you shouldn't have to hide anything from your doctor. The truth will set you free!

Longer = lower pressure = slower. Generally speaking the faster you push a bullet (within reason) the more accurate it will be. Depending on the powder you'll see a velocity difference of approximately 20-60 fps when changing the OAL. P.S. Your OAL of 1.177 cannot be correct, I'd recheck that measurement. P.P.S Here's an example of how the OAL might affect velocity.

Instead of assuming you have lead poisoning just ask your doctor to check your lead levels. I make this part of my annual physical.

Because some primer sealant is missing from the anvil?

American Select. Just remember, they're all dirty when loaded near the very bottom.

Primer suck back, it happens. You need to round the decapping pin with some sandpaper.

I'd shoot them...

Has anything in your case prep process changed? Media? Wax? etc.

10+