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.17hmr


Keeperchris
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After a 3 month wait the variation finally came through and I have been and got my new rifle today. Thanks to all that offered advice went for a cz 452 stainless synthetic in the end. Splashed out on a new 3-12x50 zeiss duralyt for the optics too.

 

Cheers all

 

Chris

post-52337-0-75440500-1365531905_thumb.jpg

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Great little rifle, had mine for just about four years now and still get a lot of enjoyment out of it, it must be that time of year as I was using mine on paper yesterday evening. Reminded me of the bitter sweet early days when I thought the hmr was a real finicky little round that exploded on hitting rain drops. The years have taught me that many of those frustratin times were pilot error and popping five rounds into a fivepence sized circle takes more than just an accurate rifle.

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If you are going to fit a bipod add a 3rd sling stud.

the countersink? is already cast into the barrel channel

synthetic stock is toooo floppy to hold a bipod on the end stud witthout affecting barrel float

 

Without doubt the synthetic stock is far from rigid and you are very possibly correct in the highlighted statement, contact may be more on barrel/stock under some bipod pressures.

 

"Some" may have an issue but the VAST majority will not!

 

The Silhouette and Style barrel don't SPECIFICALLY float anyway, the manufacturing process may give that impression but they were always designed/known to have fore stock/barrel contact in the vast majority of shooting situations, it isn't a problem, they are just floppy towards the Schnabel.

 

The HMR is a pussycat and extra barrel/stock contact with a Bipod will cause very few an issue.

 

Just the same, it will always be recommended to take apart a new rifle and check moulding/swarf for unwanted protrusion and re assemble accurately.

 

That's it. Don't try and fix anything until you know it's broken! :good:

Edited by Dekers
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Out of all my rifles ,my Sako quad 17hmr is the first on I go for. I can speak highly of the 17hmr round. Just ordered a custom moderator for mine which is supposed to be quieter than a sak, can't wait.

 

Paul

 

May I ask what Mod you're getting? I use a SAK on my .17HMR and would be interested in anything out there which is a bit quieter.

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Zero is down to YOUR requirements from the rifle.

 

You will find many zero around 100 yards and I have heard a figure of 123 or 124 yards as well, this will give a cracking trajectory from about 80-150 yards I understand, perhaps someone may know more about this one and advise us all.

 

Every barrel and every rifle will give different results, but for the HMR they do tend to be similar!

 

Mine is Zeroed to 100 yards and gives a First Zero of around 48 yards with 17g V-Max.

 

That works for me! :yes::good:

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Zero is down to YOUR requirements from the rifle.

 

You will find many zero around 100 yards and I have heard a figure of 123 or 124 yards as well, this will give a cracking trajectory from about 80-150 yards I understand, perhaps someone may know more about this one and advise us all.

 

Every barrel and every rifle will give different results, but for the HMR they do tend to be similar!

 

Mine is Zeroed to 100 yards and gives a First Zero of around 48 yards with 17g V-Max.

 

That works for me! :yes::good:

125 yard zero data with a scope height of 2":

D4CDAF8F-7B28-45DB-BA45-CFA289979F05-120

Edited by Gregthegreat
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125 yard zero data with a scope height of 2":

D4CDAF8F-7B28-45DB-BA45-CFA289979F05-120

 

I have to say that a 100 yard Zero works fine for me, but looking at that, with a 125 yard Zero, it does seem virtually point and shoot from 20-145 yards, MAX variation is 1", and generally MUCH better than that. With the grunt of a HMR a 1" MAX variation isn't going to be a problem with any small/medium vermin at those distances!

 

Not familiar with that table, whose is it? 2" Scope height shown, I would have thought 1.5" is nearer the norm, and was that 17g V-Max? It does seem to show a variation from the graph at #18, but there will always be a variation from rifle to rifle anyway, should be close! :):yes:

Interesting stuff! :good:

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Without doubt the synthetic stock is far from rigid and you are very possibly correct in the highlighted statement, contact may be more on barrel/stock under some bipod pressures.

 

"Some" may have an issue but the VAST majority will not!

 

The Silhouette and Style barrel don't SPECIFICALLY float anyway, the manufacturing process may give that impression but they were always designed/known to have fore stock/barrel contact in the vast majority of shooting situations, it isn't a problem, they are just floppy towards the Schnabel.

 

The HMR is a pussycat and extra barrel/stock contact with a Bipod will cause very few an issue.

 

Just the same, it will always be recommended to take apart a new rifle and check moulding/swarf for unwanted protrusion and re assemble accurately.

 

That's it. Don't try and fix anything until you know it's broken! :good:

 

 

Dekers,

 

Even with a positive contact setup like you're describing, the bipod can have a bit effect with cheaper synthetic stocks (as in the case of the CZ or Savage). While the HMR is a tame round, a 9" lever arm of a bipod can put a lot of force on the front of the stock and change the contact pressure. In my case with the savage, I could affect the POI by 4" at 100 yards by either pushing into the bipod positively or leaving neutral pressure. It was repeatable so long as you could repeat the same positive pressure on the bipod. That was always the problem for me. I like to shoot pushing into the bipod, but ensuring the same pressure on different surfaces and upward/downward angles was too inconsistent.

 

That's the Nosler ballistics app on iPhone, I just took a screen shot of it. That's working on the ballistic coefficient and muzzle velocity of Hornady 17grn V-Max. That profile is saved for my rifle which is why it has a setting of 2" for scope height.

 

Greg.

 

 

Those are basically the same numbers I had when I used a HMR, though mine were from the JBM balistics website. I always zeroed at 125 as I was shooting in a lot of open fields and a 125 yard shot was common and out to 200 was not out of the question in still summer air.

 

thanks

rick

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