Indians For Guns

Balancing the IHP


My IHP was a burden for me; I always felt less weight in the rear side so I thought to balance it my own way.



Things you need:-

1. A drill.
2. A screwdriver.
3. Lead weights or pellets.
4. Strong adhesive, like fevi quick.
Disclaimer: - I am solely doing this as a personal customization. Please think Pros and cons before applying it to your own rifle. I am not responsible to any damage to your rifle.


Step one: - Check the gun if it’s cocked or not. Always were safety glasses and please take all the safety precautions.



Step two:- Open the butt pad.
Step three:- A picture and thousand words. But if you are not experienced to use a drill you can easily ruin your stock as this requires the whole to be perfectly aligned. I didn’t used the vice because I am used to it.

Step four: - Insert the weight (lead bbs or pellets) as required by you.
Step five: - use adhesive to fix the weight or pellets.
Important if the bbs are moving inside then due to recoil they will move with lots of force and butt pad will experience force outside which will damage the screw with which butt pad is fixed . It’s something like mechanism of an automatic pistol.


Step six:- Fix the butt pad.

Results:- 1. Recoil of the gun is reduced.
2. It added more to overall weight but balance is fine now.


SEE THE MAGIC: - At 25 yards, prone position, Five shots.

Fantastic

Nice way to show what you did.

I admit it would not be as convinient and quick as your solution, but did you consider cutting off the barrel a few inches and recrowning it to improve the balance, it might have also provided improvement in lock time even.

Manish

fantumfan2003 wrote:
......................................................... did you consider cutting off the barrel a few inches and recrowning it to improve the balance, it might have also provided improvement in lock time even.

Manish

hi maish

i have already thought a lots over it. the crown is perfectly ok. but chopping down barrel doesnt seems a good idea to me because i am used to frequently change the spring to get full power, and i have dar that chopping down may in case leave some unused power.
what say?

Sitar

What spring do you use to get full power ? The IHP 35 barrel is 450mm or about 17.75 inches. Cutting of 3 or 4 inches should not affect power, though you may lose leverage and find cocking it harder with a shorter barrel.

I intend to cut a barrel and see if it makes a difference in anyway , but getting a spare barrel is easier said than done

Manish

sitar wrote:

fantumfan2003 wrote:
......................................................... did you consider cutting off the barrel a few inches and recrowning it to improve the balance, it might have also provided improvement in lock time even.

Manish

hi maish

i have already thought a lots over it. the crown is perfectly ok. but chopping down barrel doesnt seems a good idea to me because i am used to frequently change the spring to get full power, and i have dar that chopping down may in case leave some unused power.
what say?

Manish ..if you are contemplating chopping the barrel then you risk de choking it...or for that matter are these IHP barrels choked in the first place ?...In my opinion chopping these barrels will only improve lock time...in order to increase power (read fps/ft-lbs) with heavy pellets you have to make the piston top heavy and utilize the full compression of the spring (45 coil IHP original)...I have machined and used a 3mmtk x [22mmOD X 10.2mm(ID)]x 20mmL SS top hat in one of my .22s....the spring guide was also machined to close tolerances, I ensured that the spring which had a coat of shock proof lubricant was snug fit on both guide and top hat...in order to de torque the spring, a slim SS washer was slipped inside the guide...piston thrust bearing was brazed and machined to .1mm tolerance w.r.t to the lapp polished receiver ID.....after lubing the internals with moly paste....the results became very obvious...I made sure that I was not fooled by dieseling...for that matter the gun did not diesel at all....and I must not forget to thank Karizman who had lectured me in one of the earlier threads regarding airgun velocity (which opened up my eyes) and also some real good help when it came to selecting lubricants...

Future plan- improved trigger, ream transfer port in a conical fashion...will post pictures of all the components then...

We have our very own IHP expert here....

No the IHP barrels are not choked. Would love see those pictures.

Manish

pkjeetesh wrote:Manish ..if you are contemplating chopping the barrel then you risk de choking it...or for that matter are these IHP barrels choked in the first place ?...In my opinion chopping these barrels will only improve lock time...in order to increase power (read fps/ft-lbs) with heavy pellets you have to make the piston top heavy and utilize the full compression of the spring (45 coil IHP original)...I have machined and used a 3mmtk x [22mmOD X 10.2mm(ID)]x 20mmL SS top hat in one of my .22s....the spring guide was also machined to close tolerances, I ensured that the spring which had a coat of shock proof lubricant was snug fit on both guide and top hat...in order to de torque the spring, a slim SS washer was slipped inside the guide...piston thrust bearing was brazed and machined to .1mm tolerance w.r.t to the lapp polished receiver ID.....after lubing the internals with moly paste....the results became very obvious...I made sure that I was not fooled by dieseling...for that matter the gun did not diesel at all....and I must not forget to thank Karizman who had lectured me in one of the earlier threads regarding airgun velocity (which opened up my eyes) and also some real good help when it came to selecting lubricants...

Future plan- improved trigger, ream transfer port in a conical fashion...will post pictures of all the components then...

Forgot to mention ...Manish ...thanks to you too...remember...you started it all with the tuning guide...the reason I did not post pictures is that I did not want to make an ass out of myself shooting the same gun as it was before the customization ...now it is proven...I have three more IHPs to modify...will definitely post pictures as and when I begin work on these guns...the guns would be complete with Karizman's trigger, this is my gut feeling...I have taken my gunsmithy to the next level...the other day stripped and relubed the CFX completely....If CFX owners have any doubts/problems, please ask me....

And a Gamo CFX expert as well...

Manish

pkjeetesh wrote:Forgot to mention ...Manish ...thanks to you too...remember...you started it all with the tuning guide...the reason I did not post pictures is that I did not want to make an ass out of myself shooting the same gun as it was before the customization ...now it is proven...I have three more IHPs to modify...will definitely post pictures as and when I begin work on these guns...the guns would be complete with Karizman's trigger, this is my gut feeling...I have taken my gunsmithy to the next level...the other day stripped and relubed the CFX completely....If CFX owners have any doubts/problems, please ask me....

[quote="fantumfan2003"]And a Gamo CFX expert as well...

Manish

Striker...it is'nt rocket science....but made to look/seem like that by many.....therefore kindly do away with the Snubs...too early to be called an expert...but sure I can help others.....

Cheers

Jeetesh

Gentleman,

I'm new into shooting, got my IHP 3 months back and have been shooting at average 20 pellets per sunday. Lately I've been noticing a churning voice while locking the barrel down to insert pellet at the breech.
Though I properly clean the rifle's entire outer surface after every use, but I haven't done any other maintainence job yet and am novice to do so without a live demo (want to avoid risking the gun).
I'm in Bangalore and would like to know if someone could explain me the basics and coach me into some lubing etc if that solves the problem. Wouldn't mind at all if you can recommend a good gunsmith.

Thanks & Regards,
Virendra S Rathore

hi vsr

there are many people who would help you out in bangalore

try simply oiling the moving parts on the outer side for the chruning noise.
beware that you do not put oil in the power plant and the washer inside because if its ptf (synthetic) washer than it is going to be ruined, you need to have synthetic lubricant init.

the chruning niose can also be of spring so watchout for reason and reply
if its a typical twangy chruning then its of spring, or if its smooth chruning noise then it can be the stock rubbing the chamber


thanks

Guys,

I couldn't identify exactly where the avoidable power plant is and where's the washer.
By looking at the following it seems that the entire inner machinery itself is the powerplant.
http://www.pyramydair.com/blog/2006/07/ ... plant.html
So I'm confused where to drop oil and where not ..

Pardon me for being novice.

Regards,
Virendra

Sitar,

Is your rifle IHP or a Gsmith model???

You could also try (instead of drilling the stock) adding metal plates of a specific material like sheet metal. They are readily available as left over pieces (scraps) in machine shops and they could be grafted to make a similar cross sectional shape as that of the butt stock. Then all that remains is to drill two holes for the screws and screw it to the butt stock with the butt pad. No new screws will be required if the thickness of the plate is reasonable.

Advantages

# This process is reversible - you can remove the plate at any time (Helpful if you plan to sell your rifle later)

# You can add more weight by varying the plate material, thickness of the plate or just by adding multiple plates.

Disadvantage

# This increases the length of the rifle marginally.



Can you please list the names of the manufactures of the Screw driver set, drill bit set and the drill???

I would most certainly appreciate it if you could post the prices of the above said items also....

Gentlemen,

Couldn't figure out where else to post it.
I'm having problems with my 7 month old IHP national rifle.
While cocking/locking the gun by pulling the barrell down , I experience heavy noise from the spring.
Do I need to lube, if yes, how much and how frequent.
A friend suggested that it happens during rainy season and lubing may not be required.
Though I don't rule out some air moisture, but I've always kept the gun from direct water contact.

Please suggest, I've suspended using the rifle for now and am looking for a solution.

Regards,
Virendra