How Many Shots Before .17Hmr Goes Off Zero

[Beefbeefbeef 10]

Fellas

 

Bought a new CZ Silhouette .17 HMR recently, my first rifle after 30 years of shotguns, and still getting to grips with the subtleties. It seems to me that when I'm out and put say 25 - 30 rounds through it at targets, it starts to go off zero.

 

Is that normal and is that due to crud in the barrel or is the barrel getting hot?

[delswal 3,819]

next time you go out with .......zero it .......fire 10 rds max .......clean it ...bore snakes are great things for the .17 would do that for the next hundred rds or so

good luck

[Deker 3,478]

next time you go out with .......zero it .......fire 10 rds max .......clean it ...bore snakes are great things for the .17 would do that for the next hundred rds or so

good luck

 

We all have an opinion, mine is I wouldn't go anywhere near a rifle with a bore snake, especially a tiny .17bore!

[Deker 3,478]

Fellas

 

Bought a new CZ Silhouette .17 HMR recently, my first rifle after 30 years of shotguns, and still getting to grips with the subtleties. It seems to me that when I'm out and put say 25 - 30 rounds through it at targets, it starts to go off zero.

 

Is that normal and is that due to crud in the barrel or is the barrel getting hot?

 

What happens after 30 shots??

 

When you say go off zero, how much, what happens then, do you clean it/leave it/what??

 

If it is/was new cleaning is important (it's always important in my view but I know a few people who will give you an argument on that).

 

HMR do not go off after 30 rounds, it has to be heat, wind, you are getting tired, etc, but you will have to fire pretty rapidly for heat to have any much effect!

[Elliott 436]

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

[Deker 3,478]

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

 

Which part of the copper coat on a HMR bullet (which does it's best to weld itself to the inside of your barrel) will make it better by leading the barrel?

[zx10mike 137]

 

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

 

Which part of the copper coat on a HMR bullet (which does it's best to weld itself to the inside of your barrel) will make it better by leading the barrel?

 

my thoughts exactly.clean after every outing in my opinion.

[Chr15j 59]

Nicely put! I never clean my cz .22rf barrel, did once and accuracy went to pot. Dirty barrel all the way for a .22rf but .17 HMR def needs a clean

[Beefbeefbeef 10]

 

Fellas

 

Bought a new CZ Silhouette .17 HMR recently, my first rifle after 30 years of shotguns, and still getting to grips with the subtleties. It seems to me that when I'm out and put say 25 - 30 rounds through it at targets, it starts to go off zero.

 

Is that normal and is that due to crud in the barrel or is the barrel getting hot?

 

What happens after 30 shots??

 

When you say go off zero, how much, what happens then, do you clean it/leave it/what??

 

If it is/was new cleaning is important (it's always important in my view but I know a few people who will give you an argument on that).

 

HMR do not go off after 30 rounds, it has to be heat, wind, you are getting tired, etc, but you will have to fire pretty rapidly for heat to have any much effect!

 

 

Yesterday, after a couple of scope adjustments, I had a nice little pattern of 4 shots on a 50p at 100 yards. By then I had fired about 25 to 30 shots. I switched to a new target , same distance, and only had one of my next 5 shots on the (50p size) target, the others either high or low. There was only a small breeze.

 

When I bought the gun, the gun shop threw in a bore snake. It snapped on first use! I have since bought a cleaning rod, jag, etc and gace the barrel a bit of a clean. Last night when I got home I thought I would keep cleaning the barrel until the wipes came out clean - it took 30 wipes!! Took bloody ages but maybe that was the build up of cr*p in the barrel from the period after the bore snake snapped? Maybe that was the problem.

 

Trying to put my finger on why the gun is not shooting as straight as I would like.

[Deker 3,478]

 

 

Fellas

 

Bought a new CZ Silhouette .17 HMR recently, my first rifle after 30 years of shotguns, and still getting to grips with the subtleties. It seems to me that when I'm out and put say 25 - 30 rounds through it at targets, it starts to go off zero.

 

Is that normal and is that due to crud in the barrel or is the barrel getting hot?

 

What happens after 30 shots??

 

When you say go off zero, how much, what happens then, do you clean it/leave it/what??

 

If it is/was new cleaning is important (it's always important in my view but I know a few people who will give you an argument on that).

 

HMR do not go off after 30 rounds, it has to be heat, wind, you are getting tired, etc, but you will have to fire pretty rapidly for heat to have any much effect!

 

 

Yesterday, after a couple of scope adjustments, I had a nice little pattern of 4 shots on a 50p at 100 yards. By then I had fired about 25 to 30 shots. I switched to a new target , same distance, and only had one of my next 5 shots on the (50p size) target, the others either high or low. There was only a small breeze.

 

When I bought the gun, the gun shop threw in a bore snake. It snapped on first use! I have since bought a cleaning rod, jag, etc and gace the barrel a bit of a clean. Last night when I got home I thought I would keep cleaning the barrel until the wipes came out clean - it took 30 wipes!! Took bloody ages but maybe that was the build up of cr*p in the barrel from the period after the bore snake snapped? Maybe that was the problem.

 

Trying to put my finger on why the gun is not shooting as straight as I would like.

 

 

Cleaning will usually help...as long as you do it properly, people don't, they brush a couple of times and patch a couple of times, that simply makes things worse, as you have found cleaning can be time consuming.....but if you do, don't stop until it is clean. Yeah, I can see 30 patches sometimes............

top right-left, bottom, left-right

 

For what it's worth, my guess about your groups would be simply you are getting tired!

Edited September 9, 2013 by Deker

[Beefbeefbeef 10]

My patches would have looked exactly like those last night. Good photo.

 

On a related topic, where do you buy a cleaning brush and is it a soft brush or a wire brush? Is the screw fitting universal like they are with shotguns?

 

cheers

[Alsone 789]

http://www.sportsmanguncentre.co.uk/product/664b1e8be184615550825897/TETRA+ProSmith++Brass+Core+Bronze+Brushes/

[Elliott 436]

 

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

 

Which part of the copper coat on a HMR bullet (which does it's best to weld itself to the inside of your barrel) will make it better by leading the barrel?

 

Term of speech my friend, keep your hair on

 

In my experience my HMR doesn't like cleaning, many people find the same.

Edited September 9, 2013 by Elliott

[Deker 3,478]

 

 

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

 

Which part of the copper coat on a HMR bullet (which does it's best to weld itself to the inside of your barrel) will make it better by leading the barrel?

 

Term of speech my friend, keep your hair on

 

In my experience my HMR doesn't like cleaning, many people find the same.

 

 

 

 

I will GUARANTEE you any HMR with a good true barrel will shoot better clean than dirty.

 

Was your barrel filthy and lined with copper residue when you got the gun new?

 

Barrel cleaning has been discussed many times on this and other forums. Cleaning any rifle, particularly the little HMR can be a time consuming and painstaking process. A quick once over will simply raise copper fouling and leave the barrel WORSE than when you started, that is NOT clean. This is what leads people to say it shoots worse after a clean than before and I waste 10-20-30-40-50 shots to get it shooting straight again. You can do what you like, but if you clean, then clean until its clean, a quick once over is a waste of time and commonly counter productive.

 

The patches above are the result of a pal of mine from a year or two back that had HMR groups everywhere and said it was worse after cleaning, eventually I cleaned it for him and it shot perfectly afterwards. Don't forget to clean the crown and action as well.

 

I am not trying to preach to anyone, if you want to clean it fine, if you don't then fine, but the worst possible thing you can do is half heartedly clean it.

 

All my rifles, including all my rimfires shoot straight first shot after a clean, if not second shot at worst, that is simply removing any last trace of cleaning residue from the barrel and is nothing to do with lining the barrel with lead/copper/anything.

 

Spot on, no wasted ammo, no re-zeroing, even the centrefires with a full moderator strip and clean go back together and shoot spot on again!

 

ATB!

[delswal 3,819]

 

 

 

I don't generally clean mine. Most people don't bother with rimfire rifles, they usually get better as they lead up

 

Which part of the copper coat on a HMR bullet (which does it's best to weld itself to the inside of your barrel) will make it better by leading the barrel?

 

Term of speech my friend, keep your hair on

 

In my experience my HMR doesn't like cleaning, many people find the same.

 

 

 

 

I will GUARANTEE you any HMR with a good true barrel will shoot better clean than dirty.

 

Was your barrel filthy and lined with copper residue when you got the gun new?

 

Barrel cleaning has been discussed many times on this and other forums. Cleaning any rifle, particularly the little HMR can be a time consuming and painstaking process. A quick once over will simply raise copper fouling and leave the barrel WORSE than when you started, that is NOT clean. This is what leads people to say it shoots worse after a clean than before and I waste 10-20-30-40-50 shots to get it shooting straight again. You can do what you like, but if you clean, then clean until its clean, a quick once over is a waste of time and commonly counter productive.

 

The patches above are the result of a pal of mine from a year or two back that had HMR groups everywhere and said it was worse after cleaning, eventually I cleaned it for him and it shot perfectly afterwards. Don't forget to clean the crown and action as well.

 

I am not trying to preach to anyone, if you want to clean it fine, if you don't then fine, but the worst possible thing you can do is half heartedly clean it.

 

All my rifles, including all my rimfires shoot straight first shot after a clean, if not second shot at worst, that is simply removing any last trace of cleaning residue from the barrel and is nothing to do with lining the barrel with lead/copper/anything.

 

Spot on, no wasted ammo, no re-zeroing, even the centrefires with a full moderator strip and clean go back together and shoot spot on again!

 

ATB!

 

No room for argument there deker .......