Glock recommends shooting 124 gr or heavier ammo in their 9mm pistols.  Heavier projectiles not only increase accuracy (more mass = less susceptible to forces of wind, etc.), they also create more force inside the gun, helping it to cycle as designed.

That's the theory, anyway.  YMMV.

Glock was having ejection issues in most of their Gen 4 9mm pistols.  The direction of the spent brass when ejected was sporadic, and it often flew into the shooter's face!  We experienced this, so I contacted Glock.  They suggested using the recommended bullet weight to see if that helped.  I found out this was a widely known issue caused by the redesigned ejector and trigger parts for that gen.  Eventually Glock started putting a newer ejector in these pistols, but never did a recall of the previous parts.

I replaced the trigger and associated parts with an upgrade kit, and the problem was about 90% fixed.  Still got an occasional brass near the face, but it was rare.

Anyway, that's how I was informed of the 124 gr bullet recommendation directly from Glock.

Wow, I didn't know that. And 115gr is more plentiful in stores compared to 124gr.  I forgot what the VP9 recommends, but I noticed when using 124gr, my grouping does open up slightly. But not enough to totally not buy 124gr. I shoot what ever is cheap.

Glock recommends shooting 124 gr or heavier ammo in their 9mm pistols.  Heavier projectiles not only increase accuracy (more mass = less susceptible to forces of wind, etc.), they also create more force inside the gun, helping it to cycle as designed.

That's the theory, anyway.  YMMV.

Glock was having ejection issues in most of their Gen 4 9mm pistols.  The direction of the spent brass when ejected was sporadic, and it often flew into the shooter's face!  We experienced this, so I contacted Glock.  They suggested using the recommended bullet weight to see if that helped.  I found out this was a widely known issue caused by the redesigned ejector and trigger parts for that gen.  Eventually Glock started putting a newer ejector in these pistols, but never did a recall of the previous parts.

I replaced the trigger and associated parts with an upgrade kit, and the problem was about 90% fixed.  Still got an occasional brass near the face, but it was rare.

Anyway, that's how I was informed of the 124 gr bullet recommendation directly from Glock.

Learned something today!

Wow, I didn't know that. And 115gr is more plentiful in stores compared to 124gr.  I forgot what the VP9 recommends, but I noticed when using 124gr, my grouping does open up slightly. But not enough to totally not buy 124gr. I shoot what ever is cheap.

I think you just hit on the reason why 115 gr is used most often -- cost.

When buying in bulk, the difference in cost is often small if any at all.  But, buying by the retail box can cost a bit more.

Also, practicing requires a lot of repetitions.  The smaller weight bullet fired 150-300 times in a range session might be less stressful to your body than 150 rds of a heavier weight bullet.  I have to imagine there's more powder to propel the 124 gr bullet, but I'm not into reloading.  If so, then that can translate into more pressure requiring more effort to control the gun. How much more effort, I can't say -- maybe insignificant for most.

Does zeroing with 115 vs. 147gr matter big time? I mean, I shoot 115 range ammo, so I should use that to zero right?  And know where my shots go when I use HD ammo.

Did a quick Googled search and it's fractions of an inch at around 10-15yds. Unsure of the actual difference between the 115gr Fiocchi stuff the range had vs the 147gr Federal HST that I have. If plan on carrying this handgun, I'd like to confirm optic zero for the ammo that I intend to use.

Cool.  Let us know what your friend thinks of the SCS.

My 43x slide came back last night, but still in permit purgatory. . .

What cut did you get for the 43X slide?

What cut did you get for the 43X slide?

The rmr/holosun k footprint. 

Did a quick Googled search and it's fractions of an inch at around 10-15yds. Unsure of the actual difference between the 115gr Fiocchi stuff the range had vs the 147gr Federal HST that I have. If plan on carrying this handgun, I'd like to confirm optic zero for the ammo that I intend to use.

What is the velocity on the box? 

The velocity on GD 124 gf (standard pressure) is decently hot. 

What is the velocity on the box? 

The velocity on GD 124 gf (standard pressure) is decently hot.

1000fps

Brought it out to dry fire while watching videos and surfing the interwebs the past few hours. About to put it away and noticed the buttons weren't responding. I couldn't adjust the brightness or turn it off.

Removed the reinstalled the battery. It works now. I think the shake awake feature glitched.

Brought it out to dry fire while watching videos and surfing the interwebs the past few hours. About to put it away and noticed the buttons weren't responding. I couldn't adjust the brightness or turn it off.

Removed the reinstalled the battery. It works now. I think the shake awake feature glitched.

Damn. . . hopefully nothing major.  I heard/read that Holosun's CS is pretty good. 

I'm on the waitlist for fullsize EPS.  Until then, I should be up and shooting with the EPS Carry in a little over a week. 

Brought it out to dry fire while watching videos and surfing the interwebs the past few hours. About to put it away and noticed the buttons weren't responding. I couldn't adjust the brightness or turn it off.

Removed the reinstalled the battery. It works now. I think the shake awake feature glitched.

Have you tried the shake awake to make sure it works too?

Have you tried the shake awake to make sure it works too?

Not intentionally, but a few times I left the optic on overnight and noticed it was still on when picking up the holster and firearm.

Not intentionally, but a few times I left the optic on overnight and noticed it was still on when picking up the holster and firearm.

U gotta set it down and look thru it without moving and make sure its off. Then grab like u need to, to see if the rds activares in time.


Sent from my SM-G991U using Tapatalk

U gotta set it down and look thru it without moving and make sure its off. Then grab like u need to, to see if the rds activares in time.


Sent from my SM-G991U using Tapatalk

No. I haven't checked. I assumed it worked like I mentioned before about leaving it overnight. Just haven't watched it go to sleep and the dot turn off.

Again, it was odd that the buttons weren't responding to inputs. I looked it up and there's a procedure to hold the '+' button for 5 seconds to reset the optic, but not sure if I did that combination. I figured the old trick of resetting by removing the battery would fix it, and it did.

If it happens again, I'll probably be in contact with Holosun.

Edit: Reading the manual online. It's possible I entered the lock out mode when messing with handgun.

Holosun EPS Carry back in stock at Midway.  At least the red MRS version.  Will likely wait until Eurooptics has them back in stock for discount I have there.  Otherwise, I'd be very tempted to pick up one.

Still on the lookout for an Aimpoint ACRO.  Really interested in trying that one, especially after reading reviews of the P2 version. 

Still on the lookout for an Aimpoint ACRO.  Really interested in trying that one, especially after reading reviews of the P2 version.

The P2 is still selling out really quick. Looks like limited numbers are being released to vendors. Best bet would be to pre-order one from Euro Optic and wait it out.

The P2 is still selling out really quick. Looks like limited numbers are being released to vendors. Best bet would be to pre-order one from Euro Optic and wait it out.

Yeah.  I am on notification for EO.  I don't have the gun I would put it on, at least not yet. I saw the Steiner in stock, but not ready to go that direction yet.  I should just go on backorder and be pleasantly surprised on notification. 

Edit: Reading the manual online. It's possible I entered the lock out mode when messing with handgun.

No focus.

No focus.

I'm stubborn and don't read manuals unless something isn't acting right. Also not used to all the fancy shake-awake and lock out modes with random button combinations.

I have experience with the ACRO P2 and 509T X2.

The 509T X2 has a slight magnification and reticle distortion (if using the circle dot only) when looking through the glass. Not enough to have me get rid of it or not get another one but I do notice it when trying to smack small steel at 100 meters on the silhouette side of Kokohead. In relation to the 508Ts that I own, distortion is only every so slightly worse, but honestly if I wasn't looking for it I don't think I would notice it. At the end of the day this reticle still let's me shred through the 50 meter targets pretty easily at the silhouette range. And when shooting with both eyes open, I feel every con I talked about is a moot point.

As far as the ACRO P2, hands down unbeatable as far as glass clarity and dot crispness. The ACRO sports a 3.5 MOA but the dot is so crisp and clean as far as looking the most "circular" that it actually looks the same size if not smaller than the 2 MOA "smudge" I see when I look through the 509T X2. I can't detect any magnification, nor notch filter/tint. After using and looking through it I can see that the price does indeed match the quality. Not saying you should be a sniper with a pistol but the quality of this pistol optic allows me to hit the smallest of steel at 100 meters on the silhouette range. The glass is that damn clear.

At the end of the day I am verring towards enclosed pistol optics all together. Not only do I like having the emitter protected but I do like that now when lint collects on the glass of the optic I no longer have to "finger" the inside lens to clean all that crap out. Its simply wipe the eye glass and objective glass and no lint or foreign debris has a chance on getting in the emitter.