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 Post subject: 4595 Compensator and a Scope
PostPosted: Fri Jan 27, 2017 8:25 pm 
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Today, I took the 4-12x40 Simmons scope off my 4595.
I was pretty disappointed that the scope had such poor accuracy.

It didn't take long to put the standard sights back on.
I had to take the compensator off to put the front sight back on and then I put the compensator back on.

I don't know if it did any good - but I put my Laser bore sight in it and adjusted the
ghost ring rear sight and the front sight to where I thought they were aligned.
I figured it be a good starting point anyway.

When I was done i got to looking at it and thinking...
It seemed like it was pretty freakin' accurate the 1st time I used it.

And I put the scope on it and it didn't shoot worth a damn.
And in addition to the scope - there was other change - the compensator!!
It didn't have the compensator on it the 1st time I shot it.

Could that compensator have caused the accuracy to go to hell??

And in looking it over, it looks like a cast part.
Cast parts are notoriously crappy compared to a machined part...

So, as it was sitting there with the barrel up, I took a loaded cartridge and set it in the compensator.
And - It only went in a short little ways as the brass on the case stopped it.
That bullet is pretty close to the compensator - less than the thickness the brass!!

I took a bullet and it rattled in and stopped at the barrel...

So I think I'll take it back off and look over a little closer.
or:
Leave it on and see how it shoots.

I'll take a wrench with me and if it still shoots crappy, I'll remove the compensator and see it it makes any difference.

I hope to take it out tomorrow morning depending on how deep the snow is...
And the wind is supposed to gust to 35mph tomorrow too... )-: So we'll see.

It was just a thought - I do think it's possible the compensator it causing the problem.

I sure wish I woulda thought of it before I took the scope off!!! :neutral:

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Fri Jan 27, 2017 10:30 pm 
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The clearance has to be only a couple thousands or a compensator or brake can't do it's job.

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sat Jan 28, 2017 4:58 pm 
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I think I agree with what Mo said. If the bullet isn't contacting the compensator then ???.

Think about the dynamics of the bullet leaving the muzzle and the pictures of all the muzzle blasts you've seen, now picture how that escaping gas reacts with all the parts in play at the moment the projectile is 0.0010 away from the end of the muzzle and beyond. As the gas escapes equally in a 360 degree pattern it is moving faster than, or at least the same speed relative to, the projectile. A few things can happen at this point it appears to me.

One- the gases hit concentric flat areas (the parts of the compensator designed to stop and/or redirect the gasses) which slows them down to less than the speed of the projectile which in turn would render them ineffective at influencing the projectiles flight path.

Two- the gases are not escaping equally from the 360°'s of the muzzle which pushes the tail of the bullet off its concentrically stabilized flight (it wobbles). This might also happen as the projectile passes the first of the flat areas inside the compensator, one area hits first disrupting the bullets flight path due to harmonic disruptions inside the compensator.

Three- The projectile just taps the poorly made compensator enough to send it off on a tangent.

Four- I'm way off base. :yes2: Ditch the compensator, put the scope back on and test it. :dunno:

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“It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived.” — General George S. Patton

May we always realize the cost of our freedom. We can never repay them, but the very least we can do is uphold the ideals that they died protecting and honor them in the choices we make each day.

”If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy.” -James Madison
It's gettin close boys. The time is near.

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--No good deed goes unpunished--

When we do good, nobody remembers, when we do bad, nobody forgets. --unknown

Just because you are unnatural, bizarre, bring problems on yourself, and don't fit in does not mean I dislike you...well, yeah it does

“Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!” ― Hunter S. Thompson


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 Post subject:
PostPosted: Sat Jan 28, 2017 6:32 pm 
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When you put the compensator on it replaced the crown of the barrel. If the inside of the compensator down by the barrel is not milled at a consistent angle it will effect the bullets trajectory.

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sat Jan 28, 2017 10:11 pm 
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I had a custom compensator on a 4095 and was hitting all over the place until I realized the bullets were touching the comp on the way out. opened it up a little and all was good

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This forum is only as good as YOU make it. Lets all work together and have a forum we can be proud of! But lets not forget to have FUN while we do it!

Comments, suggestions and opinions are always welcome. If I can help, I will.

Happy shooting Dave Gillespie - (Sharp Shooter), you will be missed and remembered.

We will miss you Jerry Roberts - (woodyubet), you will not be forgotten.

We are better off from having known you Dean Stephens -(ampersand) It wont be the same around here without you.

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sat Jan 28, 2017 10:11 pm 
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Joined: Fri May 30, 2008 3:32 pm
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Favorite Hi-Point: 4095
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I had a custom compensator on a 4095 and was hitting all over the place until I realized the bullets were touching the comp on the way out. opened it up a little and all was good

_________________
GUNS FOR SALE!!!!
P & C Firearms


NEW TO FIREARMS? PLEASE VISIT
Hi Point Safety Tips
and
More Safety Links

This forum is only as good as YOU make it. Lets all work together and have a forum we can be proud of! But lets not forget to have FUN while we do it!

Comments, suggestions and opinions are always welcome. If I can help, I will.

Happy shooting Dave Gillespie - (Sharp Shooter), you will be missed and remembered.

We will miss you Jerry Roberts - (woodyubet), you will not be forgotten.

We are better off from having known you Dean Stephens -(ampersand) It wont be the same around here without you.

ImageImage
A Veteran, whether active duty, retired, national guard, or reserve, is someone who, at one point in his or her life, wrote a blank check made payable to "The United States of America" for an amount of "up to and including my life."


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sun Jan 29, 2017 2:31 am 
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waltham41 wrote:
I had a custom compensator on a 4095 and was hitting all over the place until I realized the bullets were touching the comp on the way out. opened it up a little and all was good
waltham41 wrote:
I had a custom compensator on a 4095 and was hitting all over the place until I realized the bullets were touching the comp on the way out. opened it up a little and all was good


Too much flamethrower smoke methinks...gave Walt a case of the double whammy post syndrome.

_________________
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“It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived.” — General George S. Patton

May we always realize the cost of our freedom. We can never repay them, but the very least we can do is uphold the ideals that they died protecting and honor them in the choices we make each day.

”If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy.” -James Madison
It's gettin close boys. The time is near.

The greatest RE-productive force is human selfishness (Say NO! to population growth!).

--No good deed goes unpunished--

When we do good, nobody remembers, when we do bad, nobody forgets. --unknown

Just because you are unnatural, bizarre, bring problems on yourself, and don't fit in does not mean I dislike you...well, yeah it does

“Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!” ― Hunter S. Thompson


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sun Jan 29, 2017 2:51 pm 
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They say the first thing that goes is your memory..... ;)

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NEW TO FIREARMS? PLEASE VISIT
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This forum is only as good as YOU make it. Lets all work together and have a forum we can be proud of! But lets not forget to have FUN while we do it!

Comments, suggestions and opinions are always welcome. If I can help, I will.

Happy shooting Dave Gillespie - (Sharp Shooter), you will be missed and remembered.

We will miss you Jerry Roberts - (woodyubet), you will not be forgotten.

We are better off from having known you Dean Stephens -(ampersand) It wont be the same around here without you.

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A Veteran, whether active duty, retired, national guard, or reserve, is someone who, at one point in his or her life, wrote a blank check made payable to "The United States of America" for an amount of "up to and including my life."


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sun Jan 29, 2017 2:51 pm 
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Joined: Fri May 30, 2008 3:32 pm
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Age: 56
They say the first thing that goes is your memory..... ;)

_________________
GUNS FOR SALE!!!!
P & C Firearms


NEW TO FIREARMS? PLEASE VISIT
Hi Point Safety Tips
and
More Safety Links

This forum is only as good as YOU make it. Lets all work together and have a forum we can be proud of! But lets not forget to have FUN while we do it!

Comments, suggestions and opinions are always welcome. If I can help, I will.

Happy shooting Dave Gillespie - (Sharp Shooter), you will be missed and remembered.

We will miss you Jerry Roberts - (woodyubet), you will not be forgotten.

We are better off from having known you Dean Stephens -(ampersand) It wont be the same around here without you.

ImageImage
A Veteran, whether active duty, retired, national guard, or reserve, is someone who, at one point in his or her life, wrote a blank check made payable to "The United States of America" for an amount of "up to and including my life."


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sun Jan 29, 2017 10:05 pm 
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Alright you guys!! I leave you alone and the next thing I know it's flamethrowers...

Anyway - I finally got to take a closer look at that compensator - I even took it back off...


mogunner wrote:
The clearance has to be only a couple thousands or a compensator or brake can't do it's job.


When Mo posted the above, I admit I had to chuckle when I saw "only a couple thousands" associated with Hi-Point!! (-:
I don't think Hi-Point gets that close with anything they make - even though what Mo said is probably right.

I took several pictures - This is just to show what we're dealing with...
It's the compensator and a bore light stuck up it.

Image

The next two show where the problem is - or at least part of it...
This is where the bullet exits the compensator.

Image

Image

That's what we call "Casting Flash" at work - and it's supposed to be removed...

And these marks were across from it:

Image

Image

The bullets were hitting there - nice...

The outside of it looks nice and smooth - The inside is as rough as a cob.
This is the end that slips over the barrel.

Image

Image

So I am pretty damn sure the compensator is the culprit causing my accuracy problem.
I don't think the hole where the bullet exits is even centered on the rifle's bore...

It's pretty disappointing to pay your money for a part that's made so crappy...
Hi-Point needs to work on it's quality control!!
All that was needed was to simply look at this thing and it's obvious there was a problem.

I wasted a lot of ammo trying to get that scope sighted in!! )-:
I sure wish I woulda thought of this before I took the scope off.
While it is a "compensator" it is more for looks than anything.

So I think I'll take it to work tomorrow and run a 1/2" drill bit through the end of it...
If I that doesn't look like enough - we have some bigger ones than that.
So much for a couple thousands!!! :mrgreen:

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Know Guns, Know Safety, Know Peace.
No Guns, No Safety, No Peace.


“The right of the citizens to bear arms in defense of themselves and the state shall not be denied.”
Article VI, Section 24 of the South Dakota Constitution


I sure miss you Amp - (Dean Stephens) - Wish I could have met you.


Last edited by jasonsch on Mon Jan 30, 2017 6:25 am, edited 2 times in total.

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Sun Jan 29, 2017 11:16 pm 
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Don't get carried away...

_________________
http://smalltowngunshops.blogspot.com/

“It is foolish and wrong to mourn the men who died. Rather we should thank God that such men lived.” — General George S. Patton

May we always realize the cost of our freedom. We can never repay them, but the very least we can do is uphold the ideals that they died protecting and honor them in the choices we make each day.

”If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy.” -James Madison
It's gettin close boys. The time is near.

The greatest RE-productive force is human selfishness (Say NO! to population growth!).

--No good deed goes unpunished--

When we do good, nobody remembers, when we do bad, nobody forgets. --unknown

Just because you are unnatural, bizarre, bring problems on yourself, and don't fit in does not mean I dislike you...well, yeah it does

“Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!” ― Hunter S. Thompson


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Mon Jan 30, 2017 6:32 am 
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Randy wrote:
Don't get carried away...

We have some small boring bars at work too...
Maybe I'll just chuck it up in our hand-lathe and just remove enough
material to get rid of the casting flash and make the hole centered.

I'll report back here with the results!! (-:

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No Guns, No Safety, No Peace.


“The right of the citizens to bear arms in defense of themselves and the state shall not be denied.”
Article VI, Section 24 of the South Dakota Constitution


I sure miss you Amp - (Dean Stephens) - Wish I could have met you.


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Mon Jan 30, 2017 9:04 am 
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Anxious to see how it works

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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Mon Jan 30, 2017 2:27 pm 
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I ended up using a drill bit or two - I'll have some pictures after work...

It was pretty bad - off a long ways!! (-:

_________________
Schofield Gun Sales on FB

Know Guns, Know Safety, Know Peace.
No Guns, No Safety, No Peace.


“The right of the citizens to bear arms in defense of themselves and the state shall not be denied.”
Article VI, Section 24 of the South Dakota Constitution


I sure miss you Amp - (Dean Stephens) - Wish I could have met you.


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 Post subject: Re: 4595 Compensator and a Scope
PostPosted: Mon Jan 30, 2017 8:35 pm 
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I'd say those knobs were enough to make a .50 BMG round wobble!

That was a HP product?

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