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Moa all day challenge

Posted: Tue May 28, 2024 5:43 pm
by 220
Guess some will have already seen a bit on this, seems like a lot of youtube shooting channels have been discussing it or even having a go. If you havent here is a link
https://www.youtube.com/watch?v=BM3SHvYosSs
I have 4 rifles I class as genuine moa rifles, my standard isnt as tough I am happy with 5 shot groups provided they do it consistently. 2 of them dont make the weight limit. My sako quad switch barrel in 17HM2, 17 HMR, 22LR & 22WMR does, with ammo it likes I class it as a MOA rifle in all 4 chamberings.
It is my rabbit rifle, in 15 years it has never worn anything other than a 3-9x scope and hunting thickness duplex reticle even though I have used it at the range a bit shooting 200m rimfire matches and benchrest a few times.
Over the weekend I looked through the safe and pulled a 4-20x scope with 0.25moa dot reticle off another rifle and fitted it to the sako. I needed to go hunting for a bit of dog food monday and as it had the 22WMR barrel fitted dig though my ammo locker to see what I had on hand. Found 5 packets of old winchester super X silver box ammo that I need to use up so decided to sight it in with it.
First thing that became obvious was how much movement the extra magnification was showing up compared to the 3-9x even from a solid rest. Shooting off a bench using a bipod and the stock supported by my off hand I could see my heart beat moving the rifle about 1/8moa.
Got the rifle sighted in dead on at 50y and proceeded to shot a 5 shot group. About what I expected from the ammo 4 shots into 1/2" with a flyer opening it up to 3/4" decided I might as well shoot 10 and see what happened again 4 of the shots went into the same group and another flyer made the group just over 1" so 2moa at 50y.
About what I expected from the original 40gr WMR loadings, I did have a box of 30gr V-max ammo with me. it has always shot around moa for 5 shots and I was interested to see what the difference in point of impact was between the 2 loads so shot 5 with it and was rewarded with a ragged one hole, thought I might as well put another 5 down range and see just what it would do under the rules for this moa challenge. End result was my one hole group increased in size a little but as near as I can measure it 0.41" so 0,8moa at 50y.
Image
As I said previously with the 3-9x scope the V-max ammo has shot around moa for 5 shots it certainly looks like a bit more magnification and more precise aiming of the 0.25moa target dot has improved group size. Some time in the next month I will actually shoot the challenge in accordance with the rules videoing the attempts and using software to measure groups. Intend to do it with all 4 chamberings, the HMR barrel has previously shot multiple groups around 3/4moa one after the other with ammo it likes, the 22lr has no trouble averaging under moa for multiple groups and with quality ammo like Lapua X-Act gets into the 0.8's. 17HM2 will be the hardest to achieve very limited ammo choice so it will depend on if the batches I have on hand agree with the rifle.

Interestingly over the weekend a hunting forum I am a member of held their annual range shoot, with all the recent discussion over moa factory rifles they decided to do their own MOA challenge, 5 shots from a factory sporter at 200m, 5 shooter achieved moa with the best of them shooting 0.62moa with a factory 308 hunting rifle.

Re: Moa all day challenge

Posted: Tue May 28, 2024 9:28 pm
by John M
Moa challenge, your going to need a BIG gun for this one!
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Re: Moa all day challenge

Posted: Tue May 28, 2024 10:42 pm
by 220
John M wrote:
Tue May 28, 2024 9:28 pm
Moa challenge, your going to need a BIG gun for this one!
Actually don’t even need a gun maori hunted them to extinction in a very short time without rifles.

Re: Moa all day challenge

Posted: Tue May 28, 2024 10:51 pm
by fortyshooter
I bet ol RR can do it with his smoke pole!

Re: Moa all day challenge

Posted: Wed May 29, 2024 11:00 am
by North Country Gal
Interesting stuff. I'm not going to take the challenge - I'm already behind on my shooting projects - but I do have a number of rifles and even some specialty hand guns that I regard as true MOA guns, based on what they have consistently done for me.

Re: Moa all day challenge

Posted: Wed May 29, 2024 4:31 pm
by 220
The accuracy of things like 50m pistols and some of the specialized rimfire silhouette pistols would put a lot of rifles to shame.
Would certainly make an interesting entry, even my most accurate handguns I would only class as 2-4moa shooters I no longer have a specialized 50m pistol.

Re: Moa all day challenge

Posted: Wed May 29, 2024 4:57 pm
by North Country Gal
My Anschütte Exemplar 22 LR and my XP-100 Varmint in 223 will both shoot under half inch at 50 yards, no sweat. No revolvers that can do that, of course. Be a pretty amazing revolver that could, of course.

Nevertheless, I enjoy shooting revolvers a lot more. It's partly sentimental because a Ruger Single Six was my first ever handgun, shot my first deer with a revolver and so on. Guess I've never gotten over shooting wheel guns. To this day, a good session with a revolver means more to me than a good session with any other kind of gun. I even pick old movies to see what revolvers are being used. How crazy is that? Yup, still my favorite after all these years.

Re: Moa all day challenge

Posted: Thu May 30, 2024 9:04 am
by cooperhawk
I also love pistols. I once had a Ruger .357 that I tuned. I could hit five out of six milk jugs hanging from
a line at one hundred yards and do it all day. I gave shooting exhibitions and impressed a lot of folks about
the accuracy of pistols.
Yes, it can be done.

Re: Moa all day challenge

Posted: Thu May 30, 2024 4:37 pm
by 220
My 686 will shoot the occasional 10 shot group around 1" at 25m off a bench and bags. I think it is outstanding for a revolver but even that is around 4moa, my Hämmerli 22 will do about half that.
Have a friend that has been on the state team for 50m pistol for over a decade, one day when he was shooting a practice match I shot beside him using a scoped 22 rifle for a bit of fun. Pretty humbling to be outshot by someone using an open sighted pistol at 50m when your using a scoped rifle.

Re: Moa all day challenge

Posted: Thu May 30, 2024 6:46 pm
by North Country Gal
I've had some great S&W 357s, too. Yeah, very impressive 50m shooting. Tough competition. You don't see a lot of those shooters these days.

Re: Moa all day challenge

Posted: Thu May 30, 2024 7:36 pm
by cooperhawk
Do you all understand the concept of tuning a firearm? Pistols can be astonishingly accurate if tuned properly.
Rifles even more so.