I'm going to do this simply because I can't help myself.

I pointed out that the absolute smallest deviation at the barrel can cause a huge deviation at the Target (assuming 100yards).

So, I wondered how much deviation, due mostly to User Error, at the 100yd target is cause by a fixed amount of deviation at the barrel.

The Formula is - Dv = Tan(a) x D

Dv = Deviation

Tan(a) = tangent of the amount of deviation

D = Distance, Resulting Units will be the same as those of the Distance.

OK let's assume a very small 1° deviation when you pull the Trigger -

Dv = Tan(1°) x 100yds = 1.75 yds or 62.8 inches

THAT IS HUGE!

So, let's go really small down to 0.25° deviation due to Poor Trigger Pull or Flinching.

Dv = Tan(0.25°) x 100 = .44 yards = 15.7 inches

It should be clear by now that microscopic Deviations at the Barrel can cause HUGE deviations in the Point of impact. Intuitively you knew that, but now you can see just HOW Still and Steady you need to be to hold tight groups.

Let's go even smaller -

Dv = Tan(0.1°) x 100 = 0.17yrds = 6.28 inches

That is at truly microscopic deviation at the Barrel resulting in a STILL significant deviation at the target. The 6.28" deviations amounts to a Group that is (±6.28") which is a Group Size of 12.56". That is not great shooting.

That is the true skill of a Precision shooter.

Now let's move to something beyond microscopic, and see the results -

Dv = Tan(0.01°) x 100 = 0.017yrds = 0.63 inches

That is how Still and Steady you need to be to hold 1 MOA at 100 yards.

To shoot a 4" Group at 100 Yards, your deviation at the Target would have to be less than 2" (±2"), and that works out to -

Dv = Tan(0.035°) x 100 = 0.061 Yrds = 2.199 inches

That is how Still and Steady the Barrel has to be to hold 4" (±2") groups.

Shooting Equipment and Technique have to be very refined to hold even a 4" Group, and to holds a 1" Group you have to be Steady as a Rock. That is precisely why every Tom, Dick, and Harry is NOT a Precision Shooter.

I'm not saying this to discourage anyone, because LOTS OF PEOPLE can hold a 1" Group at 100 yards, all I'm saying it that to hold that 1" Group, your shooting skills have to be very Refined and Controlled.

Just thought you might like to know.

Not that is matters to anyone, but I came up with this Formula while trying to determine the Fan-Out or Dispersion of Tweeters at a normal seating distance, but it works here too.

So, when you ask yourself and others - Why aren't my 100 yard Groups Tighter? - this is the answer. You are a User who had not refined himself to be as Still and Steady within 0.01° Deviation at the Barrel.

Instead of chasing - Barrels, Triggers, Stocks, Sights, etc... - try chasing - Refined Shooting Technique - instead.

Shooting, or Shooting Accurately, is way more complicated that simply - Point and Shoot.

But then ... that's just my opinion.

Does anyone have recommendations for outdoor AR classes around the Twin Cities or a reasonable drive? Seems many of the options are indoors, but looking for something that at least involves some distance.

Thanks in advance!

***Update:

Any know of any happening this year?

Looking to check zero on my hunting rifle and happen to be heading to the Mankato area for work today. Would prefer to check at distance instead of indoor @ 25yds.

Any Members of Key Cities, Morristown, Faribault, etc looking to get out today?

If you have information on public spaces that would work, that would also be greatly appreciated!

Thanks in Advance!

Hi everyone! I’m part of the team behind ArmorySync, and I wanted to share a milestone with the bullseye community.
Our scoring platform was used at last weekend’s 2026 Florida State Precision Pistol Championships at Gateway Rifle and Pistol Club in Jacksonville, Florida, October 17–18, and it worked great! A big thank-you to Sue and Ted for working with us and helping make this happen.
You can check out the actual match and results here:
2026 Florida State Precision Pistol Championships⁠
The platform is for anyone who wants to put a match together—whether that’s a fun match with a few friends, a monthly club match, or a state championship. You can create your own matches, set up courses, manage competitors, and track scores and results. The scoring platform is free for competitors.
We’d love to get more people involved and keep improving it with feedback from the community. If you compete, help run matches, or have been thinking about hosting something yourself, give it a look and let us know what you think.
We’re also looking to work with more bullseye clubs and match organizers to bring the platform to more matches and ranges. If you’re interested in trying it for an upcoming match, leave a comment or send me a DM!

Any way to figure out those who are running for Sheriff in county elections are actually for the 2A (not the 'I'm for the Second Amendment, but...' malarky). I'm in Washington County and doing a little research before the elections. Thanks.

I’m looking into purchasing a Rare Breed FRT-15L3 and have been researching Minnesota Statute § 609.67.

A few things I’ve noticed are that the statute never specifically mentions FRTs, and it references “additional physical manipulation,” which an FRT requires since the trigger resets and your finger pulls it again after every shot.

The statute also mentions achieving the rate of fire of a machine gun, but couldn’t a skilled shooter achieve similar speeds with a regular semiautomatic trigger? Binary triggers are also currently legal in Minnesota.

I also contacted Rare Breed directly, and they confirmed they believe the FRT-15L3 is legal in MN and are willing to ship it here.

Has anyone looked into this or gotten clarification on how Minnesota law applies specifically to FRTs?

So can I sell a suppressor to a buddy who’s under 21 with just a normal printed paperwork that I would a handgun or rifle ? I bought a 22Suppressor and he wants to buy the gun complete with the suppressor but he’s 19. It’s a Tx22 compact and a sparrow 22 that I kinda regret buying and wished I would’ve got a OCL 22 titanium instead.

Hey everyone, it's been probably 9-10 years since I have shot my handguns, and going to the range it is quite apparent that I have forgotten quite a few of the basics. I'm looking for recommendations for instructors that really focus on principles of marksmanship, as I've become interested in Bullseye/precision pistol and Steel Challenge. It's pretty easy to find CCW, defensive handgun, and the like, but is anyone aware of any teachers near the Twin Cities that could teach these sorts of things?

Are there any shops doing 4473 transfers for SBRs yet?

For the past 5 years residence history if i was living out of my car 4 years ago how would I fill that out? Just want some insight before giving them a call

I am unaware of shops or ways that I could advertise my gun for a trade?

Hi all, anyone know of a shop in the metro selling MPA Defenders? Been curious about them and would like to hold one.

39 hand guns, 7 long guns. A good friend has been bequeathed these firearms. I can give her a ballpark on each one, but ultimately it’s up to her to sell them.
She has no clue, I have more knowledge but can only advise her.

I know there was a lot of discussion about the notion that young adults should be allowed to obtain their permit to carry, but what’s the current actual situation? My stepdaughter is almost 19 and moving out soon to Minneapolis, and she wants to get her permit, does she have to wait until she’s 21?

Email received today:

Exciting news for suppressor buyers! The long-awaited ATF guidance has been released, removing a significant administrative hurdle and creating a simpler path for eligible individuals to purchase suppressors.

What does this mean for you?

Under the newly announced process, eligible customers can complete suppressor transfers using ATF Form 4473 without a separate Form 4. This eliminates the fingerprinting, photographs, and additional processing delays associated with the previous Form 4 process.

Here’s what you need to know:

• Simplified process: Eligible suppressor transfers can now be completed using Form 4473.
• Federal background check required: Customers must pass the background check before taking possession of their suppressor.
• Bring your ID: A valid driver’s license or qualifying federal identification is needed.
• No additional purchase permit required for this process: A Permit to Purchase or Permit to Carry is not required specifically for the suppressor transfer under this process.
• Form 4 remains an option: Customers may still choose the Form 4 process, including those who wish to use a trust.

This is an exciting development for suppressor enthusiasts, and our team is ready to help you understand the updated process and explore your options.

Ready to get started? Stop by Stock & Barrel Gun Club at our Eagan or Chanhassen location and talk with our team about your next suppressor purchase. We look forward to seeing you at the range!

Will my suppressor still be registered in thier database. Can I sell it like any regular firearm even tho its registered? Looking for clarification.

Do we still have to mark DIY because MN required federal marking standards or what? Or do those standards even exist past voluntary reg?

The text of MN 624.714 Subd. 17 (f) reads "A landlord may not restrict the lawful carry or possession of firearms by tenants or their guests."

I would interpret this to mean that if you have a carry permit, and you rent an apartment, and there are shared spaces in the building that you are allowed to use under the terms of your lease (like a patio, game room, or party room), your landlord cannot restrict you from carrying there. MN law does not differentiate between concealed and open carry.

But I'm not an attorney and I don't know if there's relevant case law dealing with this.

I bought a nice $1100 upper and a shitty PSA lower, but now when I went in to pick up my lower, I found out I need to be 21 to get it transferred. Now I'm kinda stuck with an expensive upper that I can't use for another 2 years. any ideas

Update from earlier post. Mark you calendar, 100 vendors. Militaria of all eras. Pre 1946 Arms

Saw this at the modern in Coon Rapids. Are there going to be other brands too? Anyone know if the new 385 is out anywhere?

Hey all. Typically would ask elsewhere but I want a few real responses. Does the lower actually matter, counterintuitive to what I’d think? Or should I just find a cheap option? Going to build an 11.5 (maybe 12.5 idk) AR15, first time building.

Anyone have hands down experience with any 556 suppressors? It’ll be dedicated to gun primarily. Silencer shop place told me a silencerco option, modern told me an sig option is best (they’re elite dealers) and I’m going to check out the Tisha at down range today. I want it short, low gas blow back, and low flash. Sound tones aren’t my biggest concern.

I just want to buy the lower and suppressor before midterms. I do not trust the state to even keep our gun laws current.