peterthefish

I too have seen this effect, but I don't think of it as dangerous, just the point at which there isn't enought oxygen in the case to get a complete burn. 10gr of SP2 gave me lower velocities than 9.5gr, but neither flattened the primers. Gunpowder does not rely on atmospheric oxygen for combustion. It is a fuel that contains an oxidizer. Decreasing velocities with increasing loads has nothing to do with inadequate oxygen in the case for a complete burn.

My experience as well (on my SDB). I think the brass is a bit thicker, causing this problem, and maybe accounting for the other comments on this thread. I discard it. This is exactly the issue. The brass gets thick closer to the case mouth than other 9mm brass. If I load longer bullets like147s in it they won't gauge or chamber in my PM-9. Too fat near the base of the bullet. Used to keep it for plinking rounds with 115s now just chuck it.

Another option might be the new SIG 9mm. The trigger is crisp if a bit heavy but should clean up easy, and my .45 SIG 1911s have all run flawlessly.

I'll add that I use some old JT gloves from my paintball days. Suede palms and fingerless. No interference with mag release / trigger, good grip and protection (and also reduces fatigue after a long day shooting major).

You and me both. A lot of the OFs around here give me a hard time for wearing gloves. Having experienced an unanticipated case head separation as a result of an AMERC case slipping in with my brass, I now consider them mandatory safety equipment.

I've heard that 4756 has a reputation for spiking near max fill / load, which may why Hogdgons has neutered their published load data for this powder.

Dan Wesson PM-9?

As others have said, first ensure they weren't light strikes (seems more likely with a 650). I wouldn't train with ammo that had known squibs. Make dud rounds for that. Pick up a hornady cam-lock bullet puller die. You can disassemble them almost as fast as you loaded them. Doesn't cost much more than a kinetic hammer and much faster than a standard collet puller.

9mm is VERY different than 38 Special. There's a reason TK offers different clip sizes across 38/357 but not for 9mm / 40 / 45 ACP. The dimension of the extractor groove is part of the SAAMI specification for the cartridge. Not so with 38 Special / 357 Magnum. As a result manufacturers of those cartridges use widely varied groove size - hence the need for different sized moonclips and sorted brass if you want a tight fit. With the 9mm the fit is much more consistent across brands (and I run almost anything I pickup) of brass. Moreover, the slight slop you get doesn't present the loading issues with 9mm that it would with a long cartridge like the 357. There's a reason folks are happy to run Ranch clips on a 625 - with a short cartridge and SAAMI spec'd groove there's no need for custom clips by brand of brass.

Why a special vendor to design new moonclips? TK Custom has them. And with my 986 I haven't had a fit issue with ANY brass in the TK clips. Some are a little floppy but it's not a liability with the super short 9mm cases like it is with 357s or 38 Specials. I'm looking for a 929 to uncomplicate matters (I.e. make common loading easier) not complicate them, sort more brass, etc... If I wanted to deal with that I'd stick to 38 Short Colt in my 627.

I use the newer S&W factory rubber grips with pebble texture. Very comfortable, cover the backstrap but smaller than the X-Frame style grips. They come on the 629, not sure what else. You'll need to call in an order direct to S&W and wait a bit.

I shoot a PM-9 as well and have no problems with it cycling even with the factory recoil spring with a 147 at about 875 FPS. I load them with Power Pistol so the different recoil impulse may help there but I'm guessing once its good and broken in it'll be more forgiving. Just as a heads up, watch out for Magtech brass and the 147s. The brass thickens up closer to the mouth than most and with Zero FMJs (haven't checked with Berrys yet) and bulges enough that it won't feed. Learned that on the clock. A few times. Until I figured out it was a brass issue and not an overly long load.

RE OAL, there will be some slop on a progressive. +/- .003 is fine. What type of seating die stem are you using. When I use RN stems that seat on the ogive OAL may vary more than those seated with flat stems. On the charge weight, static drawing the scale pan towards the wind cover is probably the culprit if there's no airflow and the readings are stable. Happens with my RCBS chargemaster. If so the correct readings are those with the cover off.

Check the Hodgdon website they have data for those components. Although they use the HBRN 124 bullet, if you want to be on the safe side start with the data for the Berrys 130 GR RN. It's a narrow envelope (.5 gr high to low) as are many Titrgroup recipes - start low and work up in .1 GR intervals. You should have no issue chambering the recommended 1.15 OAL in your Glock but you may want to check with a dummy round first.

Not sure - maybe it's a mixer or IE setting? It beeps on my tablet - I usually leave it open on my desk at work. /32 lbs of Titegroup?! A little goes a long way.

If you're sitting on their page refreshing you're doing it wrong. http://www.gunbot.net/reloading/powder/ The page automatically refreshes anytime any website powder comes in stock. You can even make it beep to alert you.

You should be able to go a bit lighter on the PP and still have no problems cycling etc... I shoot 4.3 GR under a 147 GR FMJ at 1.140 to get about 900 FPS with nothing dropping below 880 FPS - would imagine you can go lighter with coated.

Keep in mind that while the momentum (Power Factor) of our loads may be nearly the same, energy (1/2 mv^2) is not. The higher energy (I.e. Lighter and faster) load generates more free recoil and thus cycles the slide more energetically. As an example, I accidentally loaded some of my stock revolver rounds (147 gr 9mm at about 875 FPS) into my open auto mag this weekend (don't ask how). Although the PF is nearly identical, the revolver rounds barely ejected trickling only 3" from the gun. The RO initially thought I squibbed and almost called a ceasefire except he saw the plates still falling. On the flip side, the open rounds cycle my 9mm slide almost too energetically even though it is a heavier gun. So if you have to load to a minimum PF (and are going for minor PF) and run a comp, I think a 100 GR bullet is best. But I just bought some 90 GR XTPs I plan to drive to 1450 FPS with N350 and HS-6 to see how they perform. Unless you are looking for Major PF I think lighter is better.

I'm assuming you have a comp if it's an open gun. Shoot 90 or 100 grain bullets. I shoot Berrys 100 GR HBRN bullets at 1300 FPS using AA7, HS-6, or something else that makes a good amount of gas to run the comp and keep it shooting flat.

There will be some overhang but I don't think there's an RDS out there that would avoid overhang - at least not one built to ride a moving slide. The Trijicon RMR mount (I use on on my G35) uses a set screw inside the dove tail to force a tight fit and so while it may overhang would be very secure. I don't have a racker on my G35 and have no problem racking it with the RMR in place. Should be easier with a 42. If you build one, post pics!

What's the budget? Despite what a few folks here have said, the Glock 42 is a bit of a pussycat even compared to a 19. The .380 gets a bad rap because it can be punishing to shoot out of a blowback gun like a PPK but in a locked breach pistol it shoots like a 9mm light. The slide on the 42 is easier to rack too. And I would bet you could put a Trijicon RMR w Trijicon Glock mount no problemo. But that would be a pretty expensive purse gun.

I like Power Pistol in 9mm. 4.3 grains under a 147 grain Zero FMJ at 1.140 makes 130 PF from my Glock 34 and cycles the gun fine.

Just saw a 929 on Gunbroker... Looks like the Unicorns have been released!

....

If you're in Cumberland you're pretty close to Wallum Lake in Burrville which is (I think) the best range / club in RI. The membership fee is a bit steep ($300/ year) and there is a service requirement your first year, but they are one of the few clubs in RI accepting new members. They have weekly steel plate matches open to the public all summer - PM me your email address and I'll send you the schedule. They also have two larger matches every year - look at wallsofsteel.com. Manville gun club is in the area as well. Never shot there but they used to do monthly IDPA or USPSA matches. Harvard has some regular matches all summer as well I've heard good things about. Not sure if IDPA or USPSA. But careful in MA - no hi caps, etc... I'm a member at Wincheck and Midstate (West greenwich and Coventry) and happy to take you shooting anytime. Neither are accepting new members but you can shoot at Midstate for an hourly fee. Finally, some friendly advice - stay away from AFS in Attleboro. They will tell you to come on in with your gun from RI. But if you end up on the wrong side of the law you'll be in big trouble. No Hi Cap mags, no out of state handguns allowed unless you are shooting in a competition.