Accurising the .22LR round

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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should treated as suspect and not used.

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Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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1066
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Re: Accurising the .22LR round

#41 Post by 1066 »

Good shooting, some times it just comes together - It's the unexplained odd flyer that really winds me up.
This was a fairly tidy card, although only 25 yds. Scoped benchrest (BSA International Mk5/Tenex)

Image

And this is five shots at 25yds with my Sako Finnfire.

ImageImage
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Adamdavi3s
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Re: Accurising the .22LR round

#42 Post by Adamdavi3s »

That’s some cracking shooting right there

Exactly, it’s the unexplained fliers I am looking to get rid of.
You know when it’s you and you pull a shot, or you’ve read the wind wrong but that one that sounds slightly different and jumps an inch to the right, that gets my goat lol

Plus I’m a proper Norbert and enjoy working this stuff out
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Re: Accurising the .22LR round

#43 Post by Ovenpaa »

I have just signed up for the club Summer 25 yard Benchrest with my old Mk2 Inter (Once I have found or made an extractor spring) At least I know what to aspire to in the oldie stakes 1066!
/d

Du lytter aldrig til de ord jeg siger. Du ser mig kun for det tøj jeg har paa ...

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Re: Accurising the .22LR round

#44 Post by 1066 »

Gotta keep these youngsters on their toes David.. :)
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Re: Accurising the .22LR round

#45 Post by Adamdavi3s »

Data data data data l b****y. love. a data collection morning.
This morning was all about the sorted SK Long Range Match.

it was 18degrees with wind 0-5mph so not perfect, but good enough. I’m using the Ruger Precision Rimfire which people will tell you in not accurate, bo...cks I say! I have fitted mine with a JARD trigger (it fell off a bench and the factory one snapped), aluminium foil bedded it and torqued the action screws- all of about 10mins work.

I set up the paper at 50y and shot 10 rounds to warm the rifle up. I know from previous experience the first 5 down the spout in a session are all over the shop.
I then shot three groups of five of unsorted ammo as my control.
I then shot three groups of five for each length, where I had enough of that length.
I then shot a control set again in case I’d fatigued (about 80mins of shooting) and that had an impact.
Finally I shot another group of 25 to finish up.
What did I learn?
- my cold bore shot shoots 2.2MOA left, and by cold bore I mean only enough time to walk to the target, make some notes and walk back.
- I believe the rifle shoots best in the 25-26 length, it’s not hugely conclusive but it’s enough for me.
- the POI seems to move based on length which would account for larger groups, although this isn’t hugely conclusive.
- the rifle is accurate as hell, one of those 26 groups is 0.273” edge to edge so that’s a group size of 0.053”

Will I sort all my ammo going forward? Hell yes, all of it is accurate but I think I’ll get best results shooting 25-26 and more consistent results shooting the same length together.
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Re: Accurising the .22LR round

#46 Post by Adamdavi3s »

ttiuwp
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32D297C1-8D15-4F5D-AE41-9F5A5CF375D8.jpeg
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