P320 RX, My problem or??

linbo95

linbo95

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hello everyone,
I got a new p320 with red dot couple months ago.

This is my first strike fire, I have P226, PPX, 1911 and 617, and I have to admit I am not expert but all others i have I am able to shot in 3 inch 10 shots group between 10 -15 meters.

For P320, I AM able to get in 3 inch group at 3 or 4th mag, BUT during 5 trips, the first shot ALWAYS about 6 inch low.

First time, I thought OK, I don't zero it then I did; second time, it still happened, Ok, I must not used to strike fire.

But last 3 times, I did pay attention to the very FIRST shot on each trip, but no matter how I did, it always happened.

I always got bad grouping on first mag seems like each shot POI a little higher than previous shot and it is getting better (much better ) on second and following mag.

Do you think there is warm up for pistol? or Just pure my problem? Any suggestions?

Thanks
 
Your problem not the gun. Sounds like you might be trying to anticipate the shot causing you to dip. Have a friend load a dummy round in your gun without you knowing where it is. You might be surprised. Too, I have found the Optic sight to be quite the challenge to learn to shoot with it at speed after a lifetime with iron sights.

Take Care

Bob
 
before last trip, I will totally agree with you, but last trip I did test by dry fire several times before first mag, red dot still on target after I pull the trigger.

Maybe I was so afraid of P320, Or I should bring other 9mm and shot them first? I don't have same problem with my other 9mm, but at least I am suck consistently:)



Canuck44 said:
Your problem not the gun. Sounds like you might be trying to anticipate the shot causing you to dip. Have a friend load a dummy round in your gun without you knowing where it is. You might be surprised. Too, I have found the Optic sight to be quite the challenge to learn to shoot with it at speed after a lifetime with iron sights.

Take Care

Bob
Click to expand...
 
How much time have you spent shooting the RX? It took me about 1,000 rounds to get very comfortable with my Glock MOS w/ Vortex Venom (after 4 years of shooting the same Glock model with iron sights exclusively). YMMV but invest in the time and the ammo to get used to it. I found it challenging to switch.

If you're having problems only with the first few shots, I'll share my warm up routine every time I arrive at the range:

1) Draw a 2 to 3 inch of circle on your target, I use a bingo marker

2) Stand 3 yards away from the target, yes just 3 yards, put the red dot at the center of the circle, squeeze the trigger, 3 controlled shots

3) If all 3 shots land inside the circle, or group together closely, move back one yard (or two), else stay and fire another 3 rounds

4) Repeat step 2 and 3 above, I usually spend 1 magazine to warm up, at 3 - 5 - 7 - 10 yards

Doing the above, not only it's a way of warming up, it builds confidence, and also it helps you verify the zero of the red dot.

The "ball & ammo" drill that Canuck44 suggested is also a good drill. It is _DIFFERENT_ than dry-firing the gun, because when you dry-fire you _KNOW_ there's no live round in the chamber. Like Canuck44 said, have a friend load the mags for you with a combo of live vs. dummy rounds.

Hope this help! :wave:
 
Rising_sun you and I are on the same path. My PPQ with a Vortex Viper mounted on it are going through the same frustrations and drills. Man who would have thought the transition would take the time it does to get used to the Optic sight.

I did remove the front FO Red front sight on my PPQ. If you hold the gun muzzle up on a bright sunny day you see the red FO in the middle of the screen and think you are on target. Happened at an IDPA match yesterday. Clean miss on a 15 yard target. Shot right over top of the darn target. I am committed to the Optic sight. I do not have a co-witness set up on the PPQ so the front sight was expendable.

Take Care

Bob
 
I'm a master ipsc shooter in classic division but I shot my p320 Rx last night at practice match and boy was I dumping my shots to the low right. Now I should say that I never did check the factories supposedly sighted in optic so I'm not too sure if it was just me or it wasn't properly sighted in. The groupings were good though.
 
Have you checked the screws on the sight?

I found RX pistols were very difficult to use. I thought co witness sights would help. But I found no change. Eyes naturally go for the irons but it might be zeroed different than the dot.
 
I was just about to post a new thread about the same issue but figured I would tack my findings on to this one

I've had a P320RX for around a year now but Ive only had it to the range a handful of times as I also have a Shadow 2, so I took it the other day with the intention of working on accuracy

I started with the iron sights only (these are higher than normal iron sights) - it was horrible - the shots were way high and to the right I found so I moved to the red dot.

After some tweaking I had it shooting amazing at 15 yards - I mean the shots were always around an inch of where I wanted. I ran a few mags through it like this and it was solid.

Then I moved to 25 yards - it was horrible again so I made countless adjustments but never really got it to where I was happy

I should mention that all the shots were fired with front of the gun rested on a support to take some of the human error out of the equation. I didn't check anything for tightness but the red dot feels solid on the slide

Are iron sights tested at the factory? I cant believe mine are so far out - is it possible they have moved since?

Where should the red dot be in relation to the irons? Overlaid over the front sight or just above it? Whats normal?
 
Sniffer said:
I was just about to post a new thread about the same issue but figured I would tack my findings on to this one

I've had a P320RX for around a year now but Ive only had it to the range a handful of times as I also have a Shadow 2, so I took it the other day with the intention of working on accuracy

I started with the iron sights only (these are higher than normal iron sights) - it was horrible - the shots were way high and to the right I found so I moved to the red dot.

After some tweaking I had it shooting amazing at 15 yards - I mean the shots were always around an inch of where I wanted. I ran a few mags through it like this and it was solid.

Then I moved to 25 yards - it was horrible again so I made countless adjustments but never really got it to where I was happy

I should mention that all the shots were fired with front of the gun rested on a support to take some of the human error out of the equation. I didn't check anything for tightness but the red dot feels solid on the slide

Are iron sights tested at the factory? I cant believe mine are so far out - is it possible they have moved since?

Where should the red dot be in relation to the irons? Overlaid over the front sight or just above it? Whats normal?
Click to expand...

The red dot should be centered in the window.
 
If your irons are spot on then your red dot should be on or just above the front sight when you align your front sight and rear sight on the target where you expect the bullet to hit, assuming you want both to shoot at point of aim. Once your red dot is properly sighted in, where ever the red dot is, is where the bullet should be hitting.

Here is an interesting study I just found on the Optic Sight.

http://blog.krtraining.com/red-dot-study-key-points/

Take Care

Bob
 
I've the P226rx and found that I had to use the irons to be accurate/ hit ANYTHING (but the berm). I thought POA was where-ever the red dot was, it seemed to me it has simply replaced the front sight. I have work to do on it but it's a fun gun, not my comp guns so all the time at the range is with those.
 
After some tweaking I had it shooting amazing at 15 yards
Then I moved to 25 yards - it was horrible again
Where should the red dot be in relation to the irons?
Click to expand...

I assume when you moved back to 25y, the shot was either lower or higher than POI at 15 yards? If so, this is easy to fix.

Assuming the red dot unit is mounted properly, and in the center of the gun horizontally, then the red dot should also be in the center horizontally, this is necessary.

Vertically, the red dot should be where you want to zero your POI in terms of distance.

I shoot factory 115gr 9mm (White box, Federal, Tula, anything) and I used the ballistic calculator on Federal website to determine my zero. I.e., zero range = 25y, sight height = 0.5in, muzzle velocity = 1150fps. I punched those in and the calculator produced the results. It says at 3 yards, my POI should be 0.3in low. So I just stood 3 yards from a target, shot some rounds, adjust red dot vertically until it hits 0.3in lower than POA, then I'm good to go. Then I tested from 5-7-10-25 yards to verify. The calculator is pretty accurate.

I'm running a Glock 19 with stock iron/plastic sights, so with the RDS mounted, I can't even see my iron sights. :p

But yeah, the answer is the dot should be center horizontally, but vertically is up to your preference of POA/POI.

Hope this helps! :wave:
 
Canuck44 said:
Rising_sun you and I are on the same path. My PPQ with a Vortex Viper mounted on it ... I am committed to the Optic sight. I do not have a co-witness set up on the PPQ so the front sight was expendable.
Click to expand...

Canuck44, +1, I'm also committed to shooting Carry Optic (or Production Optic) for the whole year this year! On the side note, I did try someone's PPQ clone (TP9SFX) with a Venom mounted on it last week. I shot a good 2 full mags with it. Really liked the trigger, but I found it way more snappier than the Glock. And it was significantly heavier than my G19. Still want to try a real PPQ Q5 though!

My G19 has the stock plastic sights, so no co-witness for me either. Here's a video from the most recent match last month. Getting more comfy with the optic. Baby steps!


PS: @carsmovies see anything familiar on the video? :cool:
 
I installed a vortex verom on the slide on my 1911 45, and it really helped my shooting. the gun is very accurate if I can do my part
I also just got in a Canik TPSKX that takes the red dot on the slide , it has interchangeable plates for either open sights or different brand of red dots,
I have only shot it a bit and not use to the gun yet, I installed a vortex Viper on it before I shot it.
I removed the red dot and installed the open sight on it to try it out and get use to the striker fired trigger, which I have never used before, will shoot it this way for a while, spring finally came so will get out next week.
I think getting good with these takes some time and shooting, My eyes are 75 yrs old so I have trouble with open sights on long barrels, I can shoot short barrel guns much better.
Now if I could just get rid of the shakes, I would have it made, thou I can out shoot a lot of the new guys
Canuck44 , Iread though that article you listed , and he makes good points, but up here we are shooting paper, Mind you , I don't shoot competitions, just informal .
 
Rising-Sun judging from the video you are further down the road than I and a great deal faster. Recoil control is something I have to work on and waiting for the Dot to return as the slide moves forward. Initially I found myself chasing the red dot instead of looking trough it to the target. Time will see improvement. Good luck this summer.

Take Care

Bob
 
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