PRS Fundamentals

I totally want a 300WSM... that being said, it may be too much boom to be ideal for PRS. Spotting your misses is really important, so most folks are shooting a 6mm somethingoranother or 6.5mm.

Oh ya, and do not worry about the age. I started rimfire PRS at 52 and shot my first centrefire PRS this summer at 54. It is not physically very intense... and it is also a pretty understanding community and accomodations have been made at the competitions I have been at for people with mobility challenges that can't kneel and stuff like that.
I'm now thinking I'll get 2 different calibers.... uuugghhh... this is how it started last time!!!

I had a 6.5x47 and absolutely loved it, but it seems like 6.5CM is what all the cool kids have these days... haha.

Still thinking a .300WSM for a hunting gun, but I guess if I'm not compromising maybe I should go 300PRC for more punch should I ever happen across something that wants to eat me. I dunno.

SRS
 
I'm now thinking I'll get 2 different calibers.... uuugghhh... this is how it started last time!!!

I had a 6.5x47 and absolutely loved it, but it seems like 6.5CM is what all the cool kids have these days... haha.

Still thinking a .300WSM for a hunting gun, but I guess if I'm not compromising maybe I should go 300PRC for more punch should I ever happen across something that wants to eat me. I dunno.

SRS
If you want to shoot Centrefire PRS a 6.5CM is a good place to start. 6mm is what almost all Pro Shooters use in the top 200 in the US.
300WSM is legal but why beat yourself up like that?
Shoot what you have is better than not shooting at all. :)
 
If you want to shoot Centrefire PRS a 6.5CM is a good place to start. 6mm is what almost all Pro Shooters use in the top 200 in the US.
300WSM is legal but why beat yourself up like that?
Shoot what you have is better than not shooting at all. :)
I'm starting from scratch, so I have a clean slate.... could do 6mm too. I'm not wanting to beat myself up with the 300WSM... was just hoping to simplify my reloading bench and knowledge.

You're right though, just getting out and shooting is better than nothin.

SRS
 
I'm starting from scratch, so I have a clean slate.... could do 6mm too. I'm not wanting to beat myself up with the 300WSM... was just hoping to simplify my reloading bench and knowledge.

You're right though, just getting out and shooting is better than nothin.

SRS

I am getting into PRS shooting 6.5CM because that is what I could get relatively cheaply and what I reload for already.

When I rebarrel, I will look at a 6mm... which one I dunno. Likely 6mm Dasher or 6 GT. As reloaders, we have some really cool options!
 
I am getting into PRS shooting 6.5CM because that is what I could get relatively cheaply and what I reload for already.

When I rebarrel, I will look at a 6mm... which one I dunno. Likely 6mm Dasher or 6 GT. As reloaders, we have some really cool options!
Just read about the dasher last evening… that’s my current #1 option… couple of factory brass makers, easy on the recoil, and something like 40% of the PRS leaders use it. Tough to go wrong.

SRS
 

I have been writing articles a fair bit for the website and thought I would share this one here.​

This is just a portion of the article.


What Separates Elite PRS Shooters from the Rest?

When it comes to Precision Rifle Series (PRS) competition, shooters are often working with high-end rifles, top-tier optics, and carefully measured hand-loaded ammunition. So what truly sets elite competitors apart from the rest?

One word: Wind.

The ability to read wind, interpret its effects on a bullet, and make rapid, accurate adjustments is the skill that separates winning shooters from those struggling to land consistent impacts. Unlike elevation adjustments—where a shooter can rely on hard data from ballistic solvers—wind is constantly changing, unpredictable, and requires real-time adaptation.

Even the most precise rifle setup won’t matter if a shooter miscalculates wind. Mastering wind calls is what turns a good PRS shooter into a champion.


Breaking Down Key Wind Indicators

Reading the wind isn’t guesswork—it’s a skill built on observing visual indicators, understanding ballistics, and applying corrections quickly. Here are the three most critical wind-reading tools every PRS shooter must master:

Mirage – Nature’s Built-In Wind Meter

What it is: Mirage is the distortion of light caused by heat waves rising off the ground. It can be seen through spotting scopes and rifle optics, especially at longer ranges.

How to read it:

  • At low magnification, mirage appears as shimmering waves above the ground.
  • At higher magnification, mirage can give clues about wind speed and direction.
  • If the mirage is moving straight up, there’s little to no wind.
  • If the mirage leans slightly, the wind is light (under 3-5 mph).
  • When the mirage starts to boil sideways, the wind is strong (over 10 mph).
Pro Tip: Learn to observe mirage at multiple distances along your shooting lane—it’s possible for wind to be blowing in different directions at different points between you and your target.

Vegetation Movement – Reading the Terrain

What it is: The way grass, trees, and dust move can give quick and reliable wind information at a glance.

How to read it:

  • Grass and light brush movement indicates wind under 5 mph.
  • Small tree branches swaying suggests winds between 5-10 mph.
  • Heavy tree movement or dust blowing typically means 10+ mph winds.
Pro Tip: Train your eyes to spot terrain-based wind indicators quickly—they give immediate feedback on changes in wind speed and direction, especially when switching targets.


Bullet Trace – Real-Time Wind Feedback

What it is: The visible vapor trail or disturbance in the air caused by a bullet’s movement through the atmosphere. Bullet trace is easiest to see through a spotting scope but can sometimes be caught through a rifle scope with proper magnification.

How to read it:

  • Watch the arc of the bullet’s flight—if it drifts left or right more than expected, that’s wind pushing it off course.
  • Compare your shot’s impact to your intended hold. If you miss left or right, adjust accordingly.
  • Use your last shot to make immediate corrections—elite PRS shooters are masters at adjusting wind calls between shots.
Pro Tip: Team up with a spotter whenever possible—having someone else watching your bullet’s flight path can help refine your wind adjustments more quickly.

The Challenge: Wind Calls Take Experience & Practice

Unlike dialing for elevation, where data from a ballistic solver provides exact solutions, wind is dynamic and requires real-world observation and fast decision-making.

  • No two ranges are the same – Terrain, mirage, and obstacles can make wind act unpredictably.
  • Wind can shift mid-stage – PRS matches involve multiple target engagements, meaning shooters need to adjust between shots.
  • Experience builds intuition – The best PRS shooters develop a feel for wind over time, making their adjustments faster and more accurate.

I have a lot of downloads built to if anyone is interested.
 
Been looking at getting into some matches for fun, maybe starting with the rimfire. Could anyone explain the divisions, it seems self explanatory for the most part but if you have an aftermarket chassis on an otherwise factory rifle does that put you in Open? Signed up on Practiscore and been poking around looking at what is coming up this season but have a bunch of questions.
 
If you want to shoot Centrefire PRS a 6.5CM is a good place to start. 6mm is what almost all Pro Shooters use in the top 200 in the US.
300WSM is legal but why beat yourself up like that?
Shoot what you have is better than not shooting at all. :)
just because PRS allows it, it doesn't mean a match director will. Magnum cartridges are outlawed at BCPRL matches to save steel.
 
just because PRS allows it, it doesn't mean a match director will. Magnum cartridges are outlawed at BCPRL matches to save steel.
I was referring generally to Official PRS Match Series in the US.
Although PRS style centrefire matches are growing in Western Canada there are a fairly small number of matches in Canada in total, and only a very small number that are part of the official PRS Series.
Unless it's part of the official PRS Series it is not PRS, just a facsimile.
 
I was referring generally to Official PRS Match Series in the US.
Although PRS style centrefire matches are growing in Western Canada there are a fairly small number of matches in Canada in total, and only a very small number that are part of the official PRS Series.
Unless it's part of the official PRS Series it is not PRS, just a facsimile.
Are you referring to PRS pro series, regional or both?

BCPRL matches are PRS sanctioned (Pro, regional and rimfire PRS series). MD has a some leeway with what they do with the ruleset. End of the day, no one wants targets to go down constantly, and a MD can make decisions that may deviate from the ruleset for safety or logistic reasons.

Unrelated, but an example of the leeway given, look at Clay Cartridge match in OK this year. They had a mulligan system at a pro 2 day match.
 
Last edited:
I am only referring to official Precision Rifle Series matches on the PRS Calender in Centerfire, not rimfire. (300 WSM is a centre fire question).

Yes Josh Botha runs that Merrit PRS match for BCPRL.
He probably got special permission to change the rule set on what can be shot as PRS is trying to get more matches in Canada. I will ask him.

Regardless, I dont know why you feel it's so important for everyone to know this. Everything I said was in help of a new shooter, and all true.

Who has what special permission to change the rule set re calibers is not a question I was answering for that shooter, and really not so important when there are about 200 matches approx. and only 3 in Canada in the Official PRS calender.

Maybe you can find a better way to use your time than to hassle about a general help answer for a new shooter.
 
I am pointing out that it is best to reach out to a MD before making assumptions on what is allowed.

Suggesting it is reasonable to bring a 300 WSM to a match may not be helping a newer shooter out, it is a terrible idea. A better idea would be to reach out and see if the MD can loan you a more suitable gun.

If a new shooter wants to get started in PRS, see if there are local groups and reach out to them. They'll likely be more than happy to mentor a new shooter.
 
Last edited:
Onizuka, now I am getting an idea on why you are making such a big deal out of this.
Suggest you read the full ask, as you have not understood what was asked and what I answered. I did not suggest it was reasonable to bring a 300 WSM.

It was asked if a 300 WSM would be good to shoot PRS, and I suggested otherwise. I am not in the business of telling people what to do, but as a Certified Rifle Coach I do like to help people as much as possible.
In that helpful mode I suggested to start with 6.5CM but mentioned most top 200 PRS shooters use 6mm. However if all the shooter had was a 300 WSM then use the rifle you have.

Which match Directors get special permission to limit the Calibers had nothing to do with the ask, and although its not a bad add, its a very small amount of matches and therefore not really a big deal.
End of topic.
 
Onizuka, now I am getting an idea on why you are making such a big deal out of this.
Suggest you read the full ask, as you have not understood what was asked and what I answered. I did not suggest it was reasonable to bring a 300 WSM.

It was asked if a 300 WSM would be good to shoot PRS, and I suggested otherwise. I am not in the business of telling people what to do, but as a Certified Rifle Coach I do like to help people as much as possible.
In that helpful mode I suggested to start with 6.5CM but mentioned most top 200 PRS shooters use 6mm. However if all the shooter had was a 300 WSM then use the rifle you have.

Which match Directors get special permission to limit the Calibers had nothing to do with the ask, and although its not a bad add, its a very small amount of matches and therefore not really a big deal.
End of topic.
Okay, I think we may have started off on the wrong foot. I’m not trying to contradict you, and after re-reading my posts I realize I didn’t clearly lay out my full train of thought.

Here’s my main point, before bringing a 300 WSM or any other large caliber to a match, it’s strongly recommended that a shooter check in with the MD first. Even if they don't outright ban certain cartridges, it is still good practice to ask out of courtesy.

I’ve shot PRS matches all across the U.S. and Canada (both pro and regional) and from that experience I can say with confidence that MDs have a lot of discretion in how they run their matches. It’s not nearly as formal as it might appear. If an MD decides to restrict long magnum cartridges, ideally they’d consult with the regional director, but in practice, the MD has the freedom to make that call however they see fit and it is unlikely anyone is going to challenge them.

For instance, chamber flags are mandatory according to PRS, but there are many MD that do not enforce this. Ken Wheeler has even threatened to not allow MD who don't follow this rule to host PRS matches, yet this issue still persists... Especially in the Northwest. He even threatened to DQ shooters at the Pro Finale in Idaho last year.

And yes, I agree with you that 6.5 CM is a good starter cartridge that can be used for both NRL Hunter and PRS, while having a wide variety of factory loads.

Anyway, I hope I didn't come across poorly, no hard feelings on my part.
 
Okay, I think we may have started off on the wrong foot. I’m not trying to contradict you, and after re-reading my posts I realize I didn’t clearly lay out my full train of thought.

Here’s my main point, before bringing a 300 WSM or any other large caliber to a match, it’s strongly recommended that a shooter check in with the MD first. Even if they don't outright ban certain cartridges, it is still good practice to ask out of courtesy.

I’ve shot PRS matches all across the U.S. and Canada (both pro and regional) and from that experience I can say with confidence that MDs have a lot of discretion in how they run their matches. It’s not nearly as formal as it might appear. If an MD decides to restrict long magnum cartridges, ideally they’d consult with the regional director, but in practice, the MD has the freedom to make that call however they see fit and it is unlikely anyone is going to challenge them.

For instance, chamber flags are mandatory according to PRS, but there are many MD that do not enforce this. Ken Wheeler has even threatened to not allow MD who don't follow this rule to host PRS matches, yet this issue still persists... Especially in the Northwest. He even threatened to DQ shooters at the Pro Finale in Idaho last year.

And yes, I agree with you that 6.5 CM is a good starter cartridge that can be used for both NRL Hunter and PRS, while having a wide variety of factory loads.

Anyway, I hope I didn't come across poorly, no hard feelings on my part.
You definitely started on the wrong foot, I did not.
I am not sure why you feel it's soooo important to get your point across about asking Match Directors if you shoot a magnum. As a Match Director myself, I would prefer my time was not wasted with questions such as this, but that Competitors read the Registration page fully, and I am pretty sure that any match director not allowing certain calibers would list it in the registration. After all PRS has a set of rules to be followed, and if as a Match Director you change something, you MUST list that in the registration.
At this point you have pretty much beaten the topic to death, and you may not have any hard feelings, but I must say that your OCD-ness about the topic takes away any positive effort I was trying to make to help a new competitor in PRS of which I have a big interest.

Maybe hold back in future as you are not the only intelligent & experienced PRS shooter that may add a comment to this forum. I personally dont make a big deal out of details that get sorted out in the Registration process regardless, and prefer not to be brow beaten when helping.
You and I are going to have to disagree on how important you feel your add is.
 
Clearly someone has taken this personally. Perhaps you should take your own advice " hold back in future as you are not the only intelligent & experienced PRS shooter that may add a comment to this forum" and shouldn't be so sensitive to views that conflict from your own, its the internet.
 
Clearly someone has taken this personally. Perhaps you should take your own advice " hold back in future as you are not the only intelligent & experienced PRS shooter that may add a comment to this forum" and shouldn't be so sensitive to views that conflict from your own, its the internet.
Ha! You think?
Just your insinuation that WE got off on the wrong foot... you dont see it as your problem, you see it as our problem, even after you apologized for not properly reading the post.
You really are an expert in your own opinion!
 
Back
Top Bottom