N/A The elusive airgun that AVERAGES 100 yard sub moa groups.

I've been chasing long range airgun accuracy for 4 or 5 years now. And mostly trying to do it with relatively low power setups. The combined variables of "long range" and "low power" make it quite the challenge. While I do stretch out the distance shooting pests to much further, the metric for the long range/sub moa airgun has been simple, paper at 100 yards. Sometimes EBR targets, and sometimes just shooting at printed circles. About three years ago I moved into a house with 135 yards off the back porch. That easy access has been a blessing and a curse. I find myself out there at least 3 or 4 times every week, usually shooting to 100 yards. Sometimes it's even at night, after work and the kids are in bed. Lots of comparing and assessing whether or not a changed variable in the recipe (gun/projectile/speed/barrel/twist rate/choke/sizing/etc etc etc) makes much of a difference.

I finally stumbled upon one, the elusive airgun that AVERAGES sub moa, 100 yard groups. Now, many guys will share an exceptional cherrypicked 100 yard group that is MOA or better, but it's pretty rare to see somebody sharing results of a gun AVERAGING moa or better at 100 yards, at ANY power level. I've been shooting this gun/barrel/projectile combo for a couple months and can definitively say that it AVERAGES sub moa 100 yard groups. This is not the occasional cherry-picked moa group, but day in and day out, I can shoot 5, or 10, or 15 groups, measure them and average out the CTC and it'll be less than 1 inch.

Here is the most recent example. This was shot just a few evenings ago after I'd gotten home from a field target match. Hadn't scrubbed the barrel in a while so pulled the barrel and the shroud and gave the bore a thorough clean. Put it back together, walked some paper down to 100 yards, and shot this. The bottom right bull were my sighters, after that I moved up to the upper left and took 5 shots, then upper right, etc. That first group of shots that "counted" is stretched a bit right to left, telling me I should have taken a few more sighters to figure out the wind. The upper right had one shot drop low, about as bad of a flyer as this combo produces. The final 3x5 shot groups were pretty dang good though. So, the best and worst work out to 0.6moa and 1.4 moa. Average of the 5 shot groups is 0.95" or 0.9072moa. This is the first 29 consecutive shots after the barrel was cleaned (4 sighters and 25 counted shots). For those familiar with the EBR target format, out of 25 shots, 10 are 10s, 14 are 9s and the "flyer" is a 7. The EBR score would be a 233.


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This is the second more recent example, shot maybe two weeks ago. I didn't use the EBR target, but just a 8 bull target. The larger circles on this printed target are 1 and 3/8" so it makes the groups look worse than the larger bull EBR targets above. There are 8x5 shot groups here, sighters were in the upper left, and "count" towards my average. This is also all consecutive shots, just like the target above. So this is 40 back to back shots. Again 100 yards. Best group was 7/8" worse was 1.25." The average of these 8x5 shot groups is 0.98" or 0.9358MOA.

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These are not the only examples of the AVERAGE 100 yard sub moa results, just the most recent.

The primary parts of the recipe are: a BRK Ghost with a 12 land and groove, choked .20 Lothar Walther barrel shooting the NSA .20/18.9grain @ only 875-880, for about 32fpe.
 
Good shooting. Out of all of my rifles, those that generally will shoot in => moa there are five: the .22 Panthera 700 mm shooting the H&N 34 Gr heavy slug, the .22 FX Impact MKIII shooting 25.4 Gr pellets, a RedWolf HP in .22, and two Daystate Wolverine R HP rifles in .22 and point .25.

Others will on occasion but not as consistently.
 
Good shooting. Out of all of my rifles, those that generally will shoot in => moa there are five: the .22 Panthera 700 mm shooting the H&N 34 Gr heavy slug, the .22 FX Impact MKIII shooting 25.4 Gr pellets, a RedWolf HP in .22, and two Daystate Wolverine R HP rifles in .22 and point .25.

Others will on occasion but not as consistently.

Id love to see some groups. Please feel free to use this discussion as a place to share them. As simple as shooting 5 (or more) 5 shot groups at 100 yards and then averaging their CTC size.
 
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Out of curiosity, whats the average BC on a .22, .25, or .30 slug these days? I'm sure quite a few guns are capable of MOA at 100yds but the limiting factore could easily be the shooters ability to read wind too. At a 0.1 BC even a light 1mph wind can push a 40gr slug half an inch at that range
 
Nice shooting and thanks for sharing!

I'm just getting into longer range shooting and am systematically working my way out to 100 yards with my .22 caliber PCPs.

Like you, one cherry-picked (lucky) group doesn't mean much to me. Post 5 or more groups on a single sheet and that will show what the equipment and shooter can do.

Cheers!
 
Out of curiosity, whats the average BC on a .22, .25, or .30 slug these days? I'm sure quite a few guns are capable of MOA at 100yds but the limiting factore could easily be the shooters ability to read wind too. At a 0.1 BC even a light 1mph wind can push a 40gr slug half an inch at that range

My understanding is that the .22 Altaros Smooth is one of the highest BCs available for a non big bore and it's reported at 0.18. These .20/18.9s are reported by NSA as 0.075 I think, but I'm needing 0.09 in Strelok to get the trajectory to match.

I have other guns that are capable of moa at 100 yards. But no other guns that will average moa or better at 100 yards. THATs the kicker.
 
My understanding is that the .22 Altaros Smooth is one of the highest BCs available for a non big bore and it's reported at 0.18. These .20/18.9s are reported by NSA as 0.075 I think, but I'm needing 0.09 in Strelok to get the trajectory to match.

I have other guns that are capable of moa at 100 yards. But no other guns that will average moa or better at 100 yards. THATs the kicker.
.18 is definitely up there! I wasn't meaning it as an attack on you. You clearly have it prertt figured out based on those groups you shared. I was more curious of how many people have actually had a sub MOA gun in their hands and didn't realize it due to outside variables
 
The highest bc airgun slugs are made by altaros, the ATP King in .22 has a bc of .21 (G1) 40gr
The ATP King in .25 has a bc of .25 (G1) 66gr
Altaros is also the only brand that CNCs their slugs instead of casting them, assuring a new level of consistency
They .25 is often not worth it over the .22 since you’re more likely to stress your gun more and the delta in bc gain isn’t high enough unless you’re constantly shooting in high winds
 
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.18 is definitely up there! I wasn't meaning it as an attack on you. You clearly have it prertt figured out based on those groups you shared. I was more curious of how many people have actually had a sub MOA gun in their hands and didn't realize it due to outside variables

No offense taken.

Only basing it on guns that have come through my hands, I'd have to say true average 100yard MOA airguns are quite rare. Further qualify that by specifying sub 50fpe airguns and rarer still.
 
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Shot another 35 of the .20 slugs just now. 100 yards. I changed a variable though, added a moderator.

Bulls were shot in the order I numbered them. Took ten shots at the upper left first. Concluded that the moderator shifted me right about 0.3mils, and down about 0.3 mils. I added the three clicks of vertical but tried to just hold off the 0.3mils for group # 2 (middle left). That didn't work so well so I clicked in the 0.3 in the windage turret before I shot group #3. Continued on to group 4, 5, and 6 with the same turret settings. Some of the holes in the bottom right group (group #6) look bigger than the others but that's because the paper was bulged out down there, from where the edge was contacting the bucket pellet trap.

In the scored groups I'm seeing 2x8, 10x10, and 13x9, so totals out to another 233 EBR score. Those five average 1.044 inches, which is 0.9969MOA, cutting it close on this one. Technically if the 10shot sighters group is included my average I'm over 1 moa. I'm not that nitpicky though, still pretty pleased with this combination. Simply more of the same. I think the added moderator cost me just an ever slight bit of accuracy, when compared to only using the shroud.

With and without MOA coin, for reference and to prove that I'm not hiding a hole in the paper under there. 😬
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Cole, here is a 25 shot group at 100 ish yards using 22 cal jsb knockouts out of a LW poly from
a little over 3 years ago. The first thick ring is .875 at the outside.

I’m certain 24 of 25 is under moa and maybe all. 25 on a single group is a little tougher though. I’m guessing these have a similar BC to your 20 cal slugs. These were shot off a 2 piece setup with sand bags.

Mike

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Cole, here is a 25 shot group at 100 ish yards using 22 cal jsb knockouts out of a LW poly from
a little over 3 years ago. The first thick ring is .875 at the outside.

I’m certain 24 of 25 is under moa and maybe all. 25 on a single group is a little tougher though. I’m guessing these have a similar BC to your 20 cal slugs. These were shot off a 2 piece setup with sand bags.

Mike

THAT'S the stuff! Great group.