This whole uproar was because you asked if the suppressor could increase accuracy. Had you just said "funny thing, I just got a suppressor and I shattered my previous best group at 900 yards. Nobody would have given you a hard time. But by asking if the suppressor could greatly increase accuracy, you gave the initial impression that it could be repeatable. And then to throw out specific numbers without providing a picture looks even more suspect. Plus if you couldn't get out there to take a picture, we know you weren't able to measure the group.

Btw, I don't doubt that you shot your best group ever. Just stating why I think it got a little chippy.

I'm the one who called you out, so I'm assuming this post is geared towards me. I'm posting this in a friendly manner, so read it as such. If I were to shoot a 1" group at 900 yards, I would swim through the mud to go take a picture of the group, and to confirm it was a 1" group, which was not done. I shoot and reload for long range precision. I have shot some stupid small groups at a long ways off. I have been shooting long range, competing in tactical shooting matches and loading ammo for many years now. I was ranked #61 in the nation in the PRS in 2012 (see link: HERE ). I am a range officer in many high end matches, and see a lot of shooters. I think I know how to shoot and am qualified to understand groups and such. Shooting a 1" group at 900 yards is no accident. That's some good shooting. I'm not saying it didn't happen. I'm saying let's go to the range and see if you can replicate it again, or at least come close to it. Because if you shot it this good, you should be able to come close to replicating it again. That's all. Cancel the bet if you want, and let's go shoot. All I'm asking for is some range time to come close to your claim. I'll bring a 308 loaded with some 175's and shoot along side with you. I promise you this, I will be the first to eat crow on this topic. I would also like to get your description of what the 1" group looked like on the 900 yard steel.

What we really want to know, are you using MIL/MIL or MOA/MOA or MIL/MOA?

Ok you made me feel better.im sorry if the feelings mutual.i could see how you guys would think that.as far as the picture is concerned this is how it went down started at 400y 3 shots 500y 3 shots all the way out to 900 At 900 i have a 24 x24 plate i used to help aid with judging the Wind ok once i saw my shot placement went over to the 1moa target 1st shot hit 2nd shot hit but could not see impact location waited until mirage cleared up then fired 3 shot once again hit, plate was swinging all i could see was a dark spot through scope jumped in truck and drove down to target and i thought to myself holy sh$! Thats awesome.on the way back i did not carry enough speed to make it over the muddy hill got stuck, got out of truck to lock the hubs after 10 mins of forward reverse forward reverse i luckily got unstuck.went back up to grab my stuff dope book and my phone with my ballistic app still open on top of my dope book which i did not bring down to the target wasnt about to get stuck again just wanted to get home and eat with the family.you know what the funny thing is that if i took a picture everybody would have been that plate was at 50 yards how do we know you get my point.there will always be someyone who will try to bring you down no matter what.chad i would shoot with you anyday but not just to prove anything but just to have a good time because this is why were all here doing this anyways.supposed to be drama free thats why i dont have facebook twitter i have shooting and hunting forums to steer away from that stuff.okay im done venting.

I am not a long range shooter (although I would very much like to learn) and I have ZERO experience reloading, so I am not expert in the subject at hand. I do however know a thing or two about mathematics. Accuracy in the shooting world, as I have come to understand it, is essentially a study in statistics. A rifle that is a true "1 MOA rifle" will always put every bullet within a circular area whose diameter is 1 minute of angle, or approximately 1 inch at 100 yards, when the crosshair is placed at exactly the same location for each shot. The statistics comes in when analyzing how the rounds actually print on target. It is statistically possible that every round in a three round string prints on the edge of this theoretical circle, having a maximum distance of 1 inch between any two rounds. It is also statistically possible that each of the three rounds goes through exactly the same hole, essentially giving you a zero inch or zero MOA group.
We can take these statistical probabilities and apply them to any target distance. At 900 yards, every round fired from this "1 MOA rifle" will always print within a circle having a diameter of 1 minute of angle or approximately 9 inches. It is statistically possible that every round in a three round string will land on the edge of this theoretical circle, giving you a 9 inch group. It is also statistically possible that this very same rifle will place each of the three rounds at exactly the same location, giving a zero inch or zero MOA group. This certainly doesn't make it a perfect zero MOA rifle; it just means that a statistical possibility has come to fruition. So it is statistically possible, however unlikely, for a 1 MOA gun, or even a 3 MOA gun for that matter, to shoot a 1/8 inch group at 900 yards.
Obviously all of this assumes that environmental conditions and the skill of the shooter don't have any adverse effects on the flight of the bullet. Assuming that no gun is truly capable of consistently shooting 1/8 MOA, then any 1/8 MOA group will happen by the accident of a statistical improbability. It is quite possible, therefore, for any skilled shooter to produce such a group at any given time. As the OP stated, his rifle/suppressor/ammunition combo shot a ridiculous group one time. This seems to be an anomaly of statistics rather than evidence of a combination capable of nearly unheard of accuracy.
I am likely preaching to the choir, but I thought that perhaps somebody reading this thread may not have a working understanding of the interplay between rifle performance and statistics.

you sir are the most educated individual that has posted on this topic.finally someyone who understood my point.want to be friends?you are the coolest dude ever.thank you

Statistics are one thing. But you might want to look up "bullet dispersion". Meaning, a 1" group at 100 yards does not equal a 9" group at 900 yards. A 1" group at 100 yards would equal about 5" to 7" of dispersion at 900 yards, depending on the actual speed and time of flight of the 178 A-max. So, if the rifle shoots 1", your actual group with normal estimated dispersion would be 14" to 16" group (9" plus 5", and 9" plus 7").

So when can we go shooting! Monday good? I'll buy the range fee.

I looked up "bullet dispersion" and I must say it was interesting reading. Thanks for the suggestion! It definitely highlighted the fact that there is a great deal I don't know about physics and how it can influence the trajectory of a spinning projectile traveling a great distance. I certainly would not dispute that a rifle which regularly shoots 1" at 100 yards does not directly and automatically translate to 9" groups at 900 yards. By using elementary conversions between linear and radial units, we can also say that a rifle that shoots 1 MOA groups at 100 yards will not by default shoot 1 MOA groups at 900 yards, or any other distance for that matter.

For ease of mathematics, lets assume that the groups of our hypothetical rifle expanded from 1" at 100 yards to 18" at 900 yards. That means that the groups have opened up or "dispersed" from 1 MOA to 2 MOA at this distance. All this means is that for any given string of fire, all rounds will (assuming no shooter error or change in atmospheric conditions, etc) impact somewhere within a circle of diameter 18". That somewhere could hypothetically be within a 1/8 MOA diameter circle. Dispersion doesn't make this group impossible, just statistically less likely. Statistical improbabilities happen every day. It seems that our friend just had the fortune of experiencing a statistical improbability resulting in him shooting an awesome group. Repeatable? Unlikely. I certainly couldn't have done it in the first place.

All of this seems black and white on a screen or on paper.

Don't for get to factor in bullets not all weighing exactly the same, primer consistency, brass consistency, height of the powder column, varying neck tension, and a variance in powder weight. Optical clarity, parralax, rifle cant.

Nothing replaces time behind the rifle in varying environmental conditions.

From my perspective, it doesn't appear black and white at all precisely because of the variables you mentioned and the host of others that contribute to making a precision shot. I've always been quite mystified by those who are capable of predictably and consistently placing rounds on target at great distance like I read about y'all doing regularly.

My assertion (and I believe sneakyfletch would agree) is that the group in question was not an example of surpassing skill (though anyone who can connect at 900 is skilled in my book) but rather an instance of blind luck which occurred during a routine shooting session which happened to be coupled with a recent equipment change. No need to attempt to verify the group; the same math that says it's hypothetically possible says the chances of repeating it are next to nothing.

sneaky, lets go shoot this week. I need to go to the gun range at least twice this week. I'm sure fireman will provide the 800 yard range we can shoot at. What day is good? No bets, just plain shooting. I'll bring some extra ammo to shoot, and play with.

I saw this when originally posted but have not read back thru all the posts....did anyone ever get a picture of the new world record once the terrain dried. I would have rented a helicopter if I shot a 1 inch group at 900 yards.

Chad, you're always welcome. I'm teaching Monday, but ever other day this week, have at it. I will help spot 800 when the time comes.