My New IHP 35 .177..... Sneak Peak!

[bennedose]

Spiralling is not due to grooves. It is because the pellets are not exactly balanced and one side is slightly heavier than the other side. So as the pellet spins, the heavier part tends to cause spiralling.

In 0.22 here is a comparison of Precihole's prototype pellets versus Mastershot Export quality. The latter is very poor in comparison. Mastershot need to improve their quality a lot. I have stopped buying any Mastershot pellets because of variable weight and size in 0.22
Mastershot is on right side in the image
http://indiansforguns.com/download/file.php?id=9956

[sathya.sniper]

sathya.sniper,
good review
I also have IHP 35 in .177 & the grooves of .177 is far better than .22
For more info regarding the twist rate & it effect on power & accuracy read this blog from pyramyydair
very well explained
http://www.pyramydair.com/blog/2013/07/ ... y-part-13/

Thanks for the blog!
Got some clear ideas regarding my doubts.
Regards.

[sathya.sniper]

Hai all,

My rifle performed well in 10 yards I guess.
Even though I am a average shooter
Today I decided to take the range a bit more longer.

So Now
DISTANCE: 15 yards
GROUP : 15 SHOTS (increased the shot to find out consistency)
The same Standing Position


Pics below....


The shot group in the down area is the last few shots..

The size was measured except some flyers/or may be gone by my mistake.



Think I had to concentrate more, And had to carry out some breathing practices may be.
Will post the performance of Gsmith in the same range tomorrow..

[brihacharan]

Good going Sathya
Apart from those odd fliers - Rest of the grouping seem commendable...
Yes! You're right - Fatigue sometimes make the groups go awry...
Try Bench Rest - may be you'll be surprised at what you get
Briha

[bennedose]

Brihaji - after thousands of pellets I am certain that it's not fatigue. It's the pellets. The standardization is just not good enough. I did not figure that out until I forced myself to give up my standing position and use a bench rest to check accuracy. Some brands simply go astray. Sathya clearly shoots better than me but I believe he will simply get frustrated unless he confiorms accuracy using a bench rest. Those damn pellets can be a real terror. I can recommend only a handful of brands and that to each individual must check his pellet accuracy with a bench rest.

The other thing I have found is that pellets that are accurate at 10 meters can go astray at higher ranges. I somehow managed to squeeze out a 20 to 25 meter test range and discovered this. A few days ago I was amazed at the 10 meter acuracy of "Matershot Triple head" with IHP. Those damn pellets are almost 1 cm long (9 mm actually) and weigh 1.2 grams (19 grain). But they are frustratingly inaccurate at 15-25 meters. I was simply trying to check how much energy they retained at 25 meters by shooting at some paint cans. The hit rate was so poor that I finally put a 1 foot square sheet ("No Parking"/advert signs put up free on my gate by kind people who don't know I need them for plinking). The heavy pellet went through but not at the spot I was aiming for.

[sathya.sniper]

i will make some shooting from bench rest position and will post results soon...

[mercury]

Sathya , do not be surprised if you get the same pattern of the group even after resting the rifle. sure the group size may be tighter but the pattern may not vary. what I mean by pattern is the two sets of distinctive groups within the 10 shot string. resting a rifle and shooting also requires the same level of consistency as off hand shooting , except for the steady support that the rest provides. all else is equal.

accuracy to me is subjective. a coke can spinning at 30 yards and 5 pellets in a dot are a bull depending on the shooters perspective.

but if one is critical about accuracy and group sizes , then one needs to diagnose a group. simply put , one needs to understand the pattern of the pellets poi in a 10 shot string. these patterns can help one understand where the fault lies and look for ways to rectify the same. such a diagnosis can make one better understand if the rifle or pellet or the shooter himself is at fault.

first we need to mark the poi of each pellet. number them from pellet 1 through to pellet 10. ( good to have a little help from some one). numbering the poi of each pellet will help one understand the formation of the group pattern.

take a look of the pattern on your 10 shot string. there are 2 groups within them. if you had numbered them you could have figured out where each consecutive pellet had impacted and helped to better diagnose the group. anyways.......

two groups could mean loose retaining screws OR non consistent fore hand grip / hold. the downward pattern of the upper group could be ( but not necessarily) trigger pull. if the third mini group to the left is taken into account , maybe the hold at the shoulder....pressure... is varying. now all of this could reflect if you rest the rifle too !

I am no expert on marksmanship and I need not be right , but when my groups start to go haywire , I have through experience tried to understand what could be wrong by analyzing the pattern formed by the poi of pellets in a group.

just my two bits............ air gunning is a fun activity but we can complicate it !!!!

[Basu]

It is a fact that a good pellet will encourage a shooter most but a bad one will surely frustrate him the best.
As adviced ,it is desired that bench rest should be used to acertain the tightness of the grouping and then go ahead.
Smoothness is another very important aspect that attracts me more than velocity.

Basu

[VishyB]

Congrats Sathya for what seems like a very accurate gun - great groups while standing!

I have also tried to judge accuracy of my IHP 0.22 cal while shooting at 10 m in standing position while ignoring the "fliers".

However after reading the various posts, I think there is no substitute for evaluation of gun and pellet combination with a bench rest.
What if I still get "fliers" while bench rested?
That should tell a lot about the consistency of the gun and pellet combinations

Cheers
Vishwanath

[mercury]

I have no disagreement that a bench rest is an ideal way to sight in a rifle or evaluate the rifles performance. I also agree that the pellet / rifle combination is a factor. my point is while resting the rifle , consistency of placement on rest / hold / grip are as vital to off hand shooting.

all a rest does is give a steady support.....and if the rifle / pellet combination is in sync...the onus is on the shooter.

[bennedose]

I have no disagreement that a bench rest is an ideal way to sight in a rifle or evaluate the rifles performance. I also agree that the pellet / rifle combination is a factor. my point is while resting the rifle , consistency of placement on rest / hold / grip are as vital to off hand shooting.

all a rest does is give a steady support.....and if the rifle / pellet combination is in sync...the onus is on the shooter.

Bench rest itself requires practice and for a first timer I would suggest 8-10 practice shots. I have found it most convenient to paint a small black dot on a white sheet and then, using a bench rest I align the very top (peak/summit/tip) of the front-sight post to lie exactly in front of the dot - no higher and no lower. if even one in 5 shots goes astray, its not the aim, it's something else. Using this method - some pellets (using the same rifle) simply group within a 3x3cm group. Others spread out variably.

It is most painful to make those target sheets and keep changing them and marking shots on them.

[VishyB]

Mercury & Bennedose - Noted that other variables like hold and trigger pull consistency, point of aim etc. need to be taken care of during bench rest shooting.
Thanks for the tips & caution
But I have not done it before so have to try it out

Cheers
Vishwanath

[sathya.sniper]

Hello Again everyone,

My new IHP has crossed over 120 shots approx after changing the Used Diana Spring, Now the rifle is getting familiar or may be i am getting used with rifle.
But Now the shot is more Consistent apart from my errors while shooting.
As many of our fellow members told me to try BENCH REST SHOOTING It tried both STANDING OFFHAND and BENCHREST
As we know the best suitable pellet for my rifle was GSMITH AMATURE used the same
Lets see the groups.
Range : 10 YARDS
Shots : 5 SHOTS
Position: STANDING


This was a very good grouping ignoring the shot that went above....... It was me!

And Next
Range : 15 YARDS
Position: BENCH REST
Shots : 10 SHOTS




I don't know how the first SIX SHOTS made a single hole. i was really Happy that it is gonna be a very good group so got excited and shot the others in hurry
But even though it was a very good group.

Please Share your Idea's.
Regards.

[brihacharan]

Hi Sathya,
> One word - "Remarkable"
> Changing the spring seems to have done a world of good....
> For "Handheld" shooting, you have done well
> The 'Bench Rested' grouping (hole in hole) is truly admirable...
> Four things seem to have resulted:
1. Changing the spring (presume some lubing must have done too)
2. Mastering the proper hold while shooting...
3. Good & steady focus while aiming...
4. Good performance by the pellets used....
> Well done
Briha

[sathya.sniper]

Thank you sir,
-> Actually it took me more time to focus for taking each shots. May be that might be the reason for Hole in Hole
-> And I forgot to mention about Lube..... This time since I was using Used Spring I did not add Moly or Heavy tar.
Instead I used a finest grease used for automobile wheel bearing it gave very good performance.
-> And after doing lot of experiments I luckily found a good artillery hold.

But the spring is giving me less power compared to a new spring. So might have to change the spring.
And I have already bought a Gsmith spring but if I replace a Gsmith spring will it affect accuracy compared to the Diana spring used.
Had to experiment it may be after 200 to 500 shots.