My mixed day out

[Big Dog]

Hi guys. Below are some new things I was trying on Saturday.

 

First up - was some target shooting with the .222. I tried three different types of ammo to see what would give me the best groups. I put three 1" black stickers on a white sheet and put it on my target frame. The croped section below shows my Super X (50g) on the right (my normal ammo) Sako (50) in the middle and Supreme (40) on the left. I was shooting at 100yrds and never adjucted the scope for either. What I expected was fairly tight groups with them all and more so the Supremes, but just on different places on the sheet. I though the 40gs would have been much higher up but not so.

 

What I dont have here is a second round. They seemed to be all over the place for the all. The Super X were still within a 30 mm group but about 50mm below the black dot Would that be because the barrel was heating up that my thoughts but may be something else.

 

Second up - I went out to try my Perigin vulcan to see if I could get some crows with the 391. I have to say more crow came than I was expecting or set up to take comfortablly. I was very sunny and I thin some saw me so they came in high. As my hide was a bit mickey mouse (not set up to my normal comfortable standard, where I have a seat) I mist lots of shots. But these 3 bit the dust. I will try this again only set up better as if I really mean it and expect something to happen.

 

Note the .222 just incase one tried to walk out of the camp or a big Grey came alone

[deadeye ive]

Welcome to the world of centre fire BD ............Just when you think you've cracked it something else presents it self in the equation

 

 

It could depend on powder charge where the 40 grn were concerned ........The barrel warming up will throw things out as well

 

Soft points never did group well in my set up But i found federal ammo to be better ,particulary in the ballistic tip range .........Give those a try .

 

Am I correct in understanding that your once zero'd rifle is now shooting low .

[Big Dog]

The last day at the range I was shoot and zeroed at 100mtrs.

 

Yesterday I was shooting at a stepped out 100 yrds I was also lying where as at the range I would be in a hole the range dig out.

 

So yes your annlysis is correct from what the shooting shown. It was a lot colder on Saturday than when I zeroed her in I was also shooting slightly down hill but not much. To be honest I know shooting down or up hill make a difference but I dont know:

- why

- what angle you need to shoot b4 it clicks in

- what variance you get on either, e.g. when shooting down hill what happens (higher or lower)

[dunganick]

POI is not just to do with velocity, it is to do with barrel resonance. You could have a significantly slower cartridge go significantly higher simply because of the change in responance in the barrel.

[Big Dog]

Hi Nick, POI - do you mean point of impact

 

What I forgot to point out was I shot groups of 3 at each. Look at the Supremes My 2nd shot was really steady and on the target, where is the hole The hole close to the target was the first and the other the 3rd. I don't believe I am that good that I put the 2nd shot right through the first hole without not even showing any marks. So where did it go

 

How can you be so on something, kow you didnt flinch at all, never loose sight of the target through the scope and yet, from what it loos like, no bullet hit the target. The frame I use is about 14" wide and 20" high. I had a large bit of white paper on it. There should be 9 holes but only 8. Explain that if you can.

[dunganick]

its almost certainly through the lower fo those 2 holes. Looks slightly less clean than hte top hole.

 

Its not that unusual for bullets to go through a hole exactly like that one has.

 

Yes POI means Point Of Impact

[Dunkield]

The last day at the range I was shoot and zeroed at 100mtrs.

I was also shooting slightly down hill but not much. To be honest I know shooting down or up hill make a difference but I dont know:

- why

- what angle you need to shoot b4 it clicks in

- what variance you get on either, e.g. when shooting down hill what happens (higher or lower)

 

 

BD, shooting up hill or down hill your POI will be higher, but not by much - certainly not enough to worry about unless you are talking very long range or a very steep incline.

 

I can't explain it with doing a drawing, but it is the reduced amount of gravitational pull over the given distance.

 

I shoot down hill in Scotland and never give it a moments thought, in fact I am now totally convinced the less I think about what is happening the better the shots are that I can pull off

 

I would have thought with a round that is a flat shooting as a 222 the difference between 100 yards and metres shouldn't make any difference at all.

 

As Ive says, welcome to the world of centrefire where sometimes nothing seems to make sense...

[deadeye ive]

I went out to try my Perigin vulcan to see if I could get some crows with the 391.

I thought this was a new Scope that you could only buy in NI

 

Yes

Once your confident with your set up It can be quite commonplace to put 2 shots through the same hole .........The elusive trick is to do it 3 times ...Something I've never achieved ,One day

 

What you don't want Big Dog is to get yourself in a situation where you keep altering your scope .....It might be a avantage to you to take your zeroing a step further by proper benchresting the rifle and eliminating human error from the equation

[Big Dog]

deadeye ive you have hit the nail on the head I was thinking the very same thing, get the gun down on a sand bag with no movement. I am so there

 

Bad bit is there is only one sporting rifle day left between now and Christmas at the range and I think I have to work that day. But I will do this asap.

 

With a .222 how many shots b4 she start going off with the barrel heating This is an old question I know like asking how long is a piece of string, but my wee gun is 20" barrel and its not heavy, Steyr Pro-hunter Mk2.

 

Would 15mins between every 3 shot make a big difference

[Frank]

Hi BD,

Them groups seem fine to me for factory ammo.

 

Just need a click or to to brind it up and your bang on target.

 

I shoot 3 shot group and give it 2 miniutes between each shot, then 10 to 15 miniutes, (depending on weather) for the next 3 shots, as my barrel is not heavy, it heats up quick.

 

BD, you are doing great, keep shooting like that and them foxes wont stand a chance out to 250yds.

 

One more thing, zero an inch hight at a 100.

 

Well done on the crows.

 

Best of luck,

 

Frank.

[deadeye ive]

In a cold climate as it is now 20-30 shots in a hour should be fine .........On a HOT day though it can be very different with only a few shots before the barrel is extremely hot .Excessive heat is the biggest enemy of any barrel so use your own commonsense by gripping the throat area after a few shots and if you feel it's getting far to hot let it cool down ..............

[Big Dog]

Thanks guys for the information and encouragement.

 

I will time my shot better next time and it is my intension to go 1" high at 100yrs.

 

You know what its like, when you spend all week think about getting out there on the field or range, all you want to do when you finally make it is aim and pull that trigget; what better feeling is there .

 

l will keep you posted on progress