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Mossberg 500 20 gauge turkey factory choke

Started by jm_middleton07, March 28, 2016, 01:24:56 PM

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jm_middleton07

This is a brand new gun straight from Mossberg. Does it still need to be deep cleaned? This is the first new gun that I have ever purchased. I just assumed it would be clean. All of my pattern as you can see is above the poa. Impact to me looks high and too the right. I can't correct the height adjustment cause my sight is already bottomed out. Its kinda looking like I might have to trash all the little extras that came on the gun for aftermarket sights. What type of count do I need to hunt with?

chatterbox

Quote from: jm_middleton07 on March 28, 2016, 08:39:42 PM
This is a brand new gun straight from Mossberg. Does it still need to be deep cleaned? This is the first new gun that I have ever purchased. I just assumed it would be clean. All of my pattern as you can see is above the poa. Impact to me looks high and too the right. I can't correct the height adjustment cause my sight is already bottomed out. Its kinda looking like I might have to trash all the little extras that came on the gun for aftermarket sights. What type of count do I need to hunt with?
All guns come from the factory with varying amounts of cosmoline in the barrel. This has to be cleaned out to get the most out of your gun. The best way to do this is to "deep clean" the barrel. Just go to www.allaboutshooting.com to get the directions.The factory sights on those guns are junk. Truglo clamp on sights are great if you prefer open sights. Red dots are also excellent options.
As far as counts go, it is a rule of thumb that 100 evenly spaced pellets at X yardage is the accepted number.
If you want to have 40 yards as your benchmark, you need an aftermarket choke (truglo SSX, trulock, Indian Creek, etc.). You also need the shoot either Hevi-13 #7's or Federal Heviweight #7 in a 3" shell.
These shells will give you the best numbers unless you want to handload your own TSS.
Good luck!

R AJ

Have you adjusted the rear sight at all? There is a little screw head that can be turned . You need to turn so that it raises the rear sight. Also there are windage adjustments and it appears to need moving to the left that tiny little notch from center.

See your manual on this. And yes a new barrel is a dirty barrel. Sorry that you are frustrated but you have a good gun. For $30 or so I recommend a Carlson's 575 for the HW 7s to really improve your pattern.

jm_middleton07

I got it out yesterday and adjusted the sights on it. I got the pattern centered but it is still high. I'm going to pick up a gun cleaning kit this week and deep clean it. At 30 yards with the fed strut shok it did better than before. The fed mag shok at 20 was awesome but at 30 it dropped off horribly.



R AJ

Have you raised your rear sight as far up as it will go? You may also take a finer bead on the front sight so that you see only the very top of the bead and that will lower it considerably.

jm_middleton07

I deep cleaned the barrel and bought a new choke as well. I picked up a carlson .570 non ported. With the new choke the ammo I had did a lot better at 30 yards but was still not good at 40 yards. I can't say how much just cleaning the barrel helped because I added the new choke. The only thing my local gun shop had was the federal heavy weight #7 in a 2 3/4" shell. I picked those up just to see how much difference i would get. With the lead loads I was getting around 60 to 70 in a 10" @ 40 yards. With this load I get 100-110 in a 10 inch @ 40 yards. I was thinking about ordering the 3" shells but was unsure of how much that will add to my count. I'm guessing it could only go up due to the increase in shot. It also seems like the gun has less recoil now. Even with the 3" lead loads it seemed to have less felt recoil. Also my poa poi changed with the new choke. It is still a little bit high but it shoots dead on left and right. Turkey season opens this weekend so I hope all the cash I wasted pays off.

TrackeySauresRex

Quote from: RAJ on March 30, 2016, 09:24:21 AM
Have you adjusted the rear sight at all? There is a little screw head that can be turned . You need to turn so that it raises the rear sight. Also there are windage adjustments and it appears to need moving to the left that tiny little notch from center.

See your manual on this. And yes a new barrel is a dirty barrel. Sorry that you are frustrated but you have a good gun. For $30 or so I recommend a Carlson's 575 for the HW 7s to really improve your pattern.

Here is an old post of mine with some patterns you can compare. I'm satisfied with my set up but will continue to tweet things. You will be good when you get her diald in. You've had good advice here.
:anim_25:
http://oldgobbler.com/Forum/index.php/topic,60209.0.html
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