With hunting season in full swing, many folks will be shooting factory hunting ammunition. In setting scope elevation clicks for various distances, it would seem logical to use the velocity listed on the ammo box with your ballistics App or drop chart. But that could be a problem. You SHOULD still chronograph the ammo to determine its true muzzle velocity (MV) in your rifle. Read on to understand why.
Why You CANNOT Rely on the Muzzle Velocity
Printed on the Ammo Box!
When figuring out your come-ups with a ballistics solver or drop chart it’s “mission critical” to have an accurate muzzle velocity (MV). When shooting factory ammo, it’s tempting to use the manufacturer-provided MV which may be printed on the package. That’s not such a great idea says Bryan Litz of Applied Ballistics. Don’t rely on the MV on the box, Bryan advises — you should take out your chrono and run your own velocity tests. There are a number of reasons why the MV values on ammo packaging may be inaccurate. Below is a discussion of factory ammo MV from the Applied Ballistics Facebook Page.
Five Reasons You Cannot Trust the Velocity on a Box of Ammo:
1. You have no idea about the rifle used for the MV test.
2. You have no idea what atmospheric conditions were during testing, and yes it matters a lot.
3. You have no idea of the SD for the factory ammo, and how the manufacturer derived the MV from that SD. (Marketing plays a role here).
4. You have no idea of the precision and quality of chronograph(s) used for velocity testing.
5. You have no idea if the manufacturer used the raw velocity, or back-calculated the MV. The BC used to back track that data is also unknown.
1. The factory test rifle and your rifle are not the same. Aside from having a different chamber, and possibly barrel length some other things are important too like the barrel twist rate, and how much wear was in the barrel. Was it just recently cleaned, has it ever been cleaned? You simply don’t know anything about the rifle used in testing.
2. Temperature and Humidity conditions may be quite different (than during testing). Temperature has a physical effect on powder, which changes how it burns. Couple this with the fact that different powders can vary in temp-stability quite a bit. You just don’t know what the conditions at the time of testing were. Also a lot of factory ammunition is loaded with powder that is meter friendly. Meter friendly can often times be ball powder, which is less temperature stable than stick powder often times.
3. The ammo’s Standard Deviation (SD) is unknown. You will often notice that while MV is often listed on ammo packages, Standard Deviation (normally) is not. It is not uncommon for factory ammunition to have an SD of 18 or higher. Sometimes as high as 40+. As such is the nature of metering powder. With marketing in mind, did they pick the high, low, or average end of the SD? We really don’t know. You won’t either until you test it for yourself. For hand-loaded ammo, to be considered around 10 fps or less. Having a high SD is often the nature of metered powder and factory loads. The image below is from Modern Advancements in Long Range Shooting: Volume II.
4. You don’t know how MV was measured. What chronograph system did the manufacturer use, and how did they back track to a muzzle velocity? A chronograph does not measure true velocity at the muzzle; it simply measures velocity at the location it is sitting. So you need to back-calculate the distance from the chrono to the end of the barrel. This calculation requires a semi-accurate BC. So whose BC was used to back track to the muzzle or did the manufacturer even do that? Did they simply print the numbers displayed by the chronograph? What kind of chronograph setup did they use? We know from our Lab Testing that not all chronographs are created equal. Without knowing what chronograph was used, you have no idea the quality of the measurement.
5. The MV data may not be current. Does the manufacturer update that data for every lot? Or is it the same data from years ago? Some manufacturers rarely if ever re-test and update information. Some update it every lot (ABM Ammo is actually tested every single lot for 1% consistency). Without knowing this information, you could be using data for years ago.
CONCLUSION: Never use the printed MV off a box of ammo as anything more than a starting point, there are too many factors to account for. You must always either test for the MV with a chronograph, or use carefully obtained, live fire data. When you are using a Ballistic Solver such as the AB Apps or Devices integrated with AB, you need to know the MV to an accuracy down to 5 fps. The more reliable the MV number, the better your ballistics solutions.
Readers who have just recently discovered the Daily Bulletin may not realize that AccurateShooter.com has hundreds of reference articles in our archives. These authoritative articles are divided into multiple categories, so you can easily view stories by topic (such as competition, tactical, rimfire, optics, shooting skills etc.). One of the most popular categories is our Technical Articles Collection. On a handy index page (with thumbnails for every story), you’ll find over 120 articles covering technical and gunsmithing topics. These articles can help you with major projects (such as stock painting), and they can also help you build more accurate ammo. Here are five popular selections from our Technical Articles archive.
Stress-Free Pillar Bedding. Richard Franklin explains how to do a top-quality bedding job, start to finish.
OnTarget Software Review. Our Editors test free software that measures shot groups with great precision. We explain how to use the program and configure advanced features.
Savage Action Tuning. Top F-TR shooter Stan Pate explains how to enhance the performance of your Savage rifle by optimizing the torque settings of the action screws.
Complete Precision Case Prep. Jake Gottfredson covers the complete case prep process, including brass weight sorting, case trimming, primer pocket uniforming, neck-sizing, and, case-neck turning.
Stock Painting Instructions. Step-by-step guide for stock painting by expert Mike Ricklefs. Mike shows both simple coverage and fancy effects.
September 26, 2026 was National Hunting and Fishing Day. Working on your wind reading skills can improve your odds of a successful hunt. Image from NHFDay.org.
Thomas Haugland, a Shooters’ Forum member from Norway, is a long-range target shooter and hunter. He has created an interesting video showing how to gauge wind velocities by watching trees, grass, and other natural vegetation. The video commentary is in English, but the units of wind speed (and distance) are metric. Haugland explains: “This is not a full tutorial, but rather a short heads-up to make you draw the lines between the dots yourself”. Here are some conversions that will help when watching the video:
.5 m/s = 1.1 mph | 1 m/s = 2.2 mph | 2 m/s = 4.5 mph
3 m/s = 6.7 mph | 4 m/s = 8.9 mph | 5 m/s =11.2 mph
How to Gauge Wind Speed and Hold Off Using Reticles
This field video shows how to observe natural indicators — trees and vegetation — to estimate wind velocity. Then it shows how to calculate hold-offs using the reticle hash-marks. Thomas shoots a fast-cycling Blaser R93 rifle with Norma 6XC ammunition.
This stunning Westley Richards & Co. shotgun was made for the 1981 nuptials of Lady Diana Spencer and HRH Prince Charles. It is rare, has a unique history of ownership, and is also elaborately decorated.
Jim Supica, Director of the NRA Firearms Museum, has written a trio of articles about gun collecting. If you are thinking of starting your own collection of firearms, you should read Supica’s informative articles. The first talks about the basics of gun collecting, the second explains the five key factors that govern gun values, and the third article explains where to find rare and valuable arms. Today we want to highlight the five factors that contribute most to a gun’s value, according to Supica:
Make and Model, Condition, Rarity, History, Art — These are the five factors that … appeal to collectors and help determine the value of collectible guns.
Make and model tends to be the starting point for evaluating collectible guns for most collectors and will be a basic threshold requirement for those with specialized collections.
Factors here include the quality of a particular manufacturer’s products, the historical usage of the guns in question, and the brand’s aura of romance. As an example of that last (and most intangible) factor, consider that Colt Single Action Army revolvers were for several decades the most prevalent focus for collectors interested in full-size revolvers from the post-Civil War to turn of the 20th Century-era, and there is no question that Colts were widely used during that time. In recent years, there has been a refreshing trend in gun collecting to look at a broader range of guns than the traditional blue chip Colts, Winchesters, and Lugers.
Colt Single Action Army Revolvers remain among the most prized (and collectible) firearm.
2. Condition (and Originality)
Obviously, condition plays a major role in the value of a collectible firearm. The classic advice to new collectors in this regard has always been to hold out for guns in the best condition and pay the extra premium they demand. This condition-emphasis seems to have developed in the 1970s and 1980s. In the early post-WWII years of gun collecting there was more interest in rare variations and history, and fewer collectors to whom a few percentage point difference in remaining original finish was of much concern.
Although the highest-condition guns continue to bring record prices, it seems that the pendulum is beginning to swing back the other way, a trend met with my hearty approval. The appeal of “mint” guns has been largely lost on me, and seems to be more appropriate to coin or stamp collecting than a field in which the possible historic usage of the artifact holds so much interest and significance. There is a definite segment of the collector market that is not overly concerned with perfect condition, so long as the gun is original and has not been messed with in a more recent (and, in my opinion, usually misguided) attempt to enhance its desirability.
3. Rarity
In terms of rarity, the well-worn saying that “just because a gun is rare doesn’t mean it’s valuable” remains true to a certain extent. There may only be five known examples of a particular gun, but if only three people care about it, the market is saturated. However, there does seem to be more interest in cornering the rare variations within established collecting fields. There is a bit of a resurgence of the collecting philosophy of completing a punchlist of models and variations within a specialization, and this lead to vigorous competition for the rarest examples in these fields. In emerging collecting fields, when new research is published revealing the rarity of certain variations there can develop a brisk interest in those guns.
4. History
Individual guns with a known history of ownership by a specific individual or usage in a specific historical event have always captured the fascination of collectors, as well as historians and the general public. This seems to reflect a basic human interest and shows no sign of abatement. A positive trend here seems to be an increase in general understanding of the type of documentation which must accompany a historically attributed firearm to give it the credibility to justify a premium price, and the importance of creating and preserving such documentation.
This Beretta has extra value because it was owned by pilot Chuck Yeager. Photo NRA Museum.
5. Art (Decorative Embellishment)
Fine engraved guns are collected more for their artistic value than for their worth as firearms. Here the market for classic works by the great engravers of the 19th and early 20th Centuries remains strong, as well as for factory-engraved pieces from more recent years. Interest in recent non-factory engraving seems to have diminished, as has… the trend of adding modern engraving to older firearms.
Here is a matching set of three three beautifully engraved pistols by the late Indiana engraving wizard Ben Shostle — a Luger, a Mauser, and a Colt. Photo courtesy Amoskeag Auction Company.
Factory-custom engraving should not be confused with mass-produced, factory-made commemorative firearms, which flooded the market in the 1960s and 1970s. A couple of major manufacturers worked this genre to death, and prices on commemoratives have been stagnant for many years now, although the market for these shows some signs of renewal.
CAUTIONARY WORDS about RESTORATION
With prices for high-condition original finish guns running away from the budgets of many collectors, period-of-use refinished guns and older factory-refinished guns are finding more enthusiastic buyers than they did a few years ago.
The availability of excellent-quality restoration services is another factor that I anticipate may impact collector preferences in the future. The top restoration artists are reworking guns to “as new” condition with such skill that it has become increasingly difficult for even knowledgeable collectors to distinguish mint original finish guns from the best restorations.
When such restoration is disclosed to a prospective buyer (as it ethically should be), the prices the gun will bring are significantly below a similar gun with original finish, and may be less than the original cost of the pre-restoration gun plus the cost of the rework. This creates a mighty incentive for deception by a motivated seller, either by active misrepresentation (a.k.a. “fraud”) or passively by simple failure to mention the modification.
Rifleshooter.com does some great original research — providing “hard data” you can’t find anywhere else. Here are the eye-opening results of Rifleshooter.com’s 6.5 Creedmoor barrel cut-down test. You may be surprised at the results. Read on…
What do you get when you cut a 6.5 Creedmoor-chambered barrel down to just over 16 inches? A lot more velocity than you might think. Our friends at Rifleshooter.com performed a barrel cut-down test with 6.5 Creedmoor test rifle, shortening the barrel from 27 to 16.1 inches in one-inch increments. Surprisingly, with a 142gr Sierra MK, the total velocity loss (as measured with a Magnetospeed) was just 158 FPS, an average of 14.4 FPS per inch of barrel length. With the lighter 120gr A-Max bullet, the total velocity loss was 233 FPS, or 21.8 FPS average loss per inch of barrel.
To perform this velocity test, our friend Bill, Rifleshooter.com’s editor, built up a 6.5 Creedmoor rifle using a Remington Model 7 action, 1:8″ twist Green Mountain CM barrel, and MDT LSS Chassis, all obtained from Brownells.com.
Test Procedure
Five (5) rounds of each type of cartridge were fired at each barrel length and the velocity data was recorded with a MagnetoSpeed V3 barrel-mounted chronograph. The rifle was then cleared and the barrel was cut back one inch at a time from 27″ to just over 16″. NOTE: During this winter test, the air temperature was a very chilly 23° F. One would expect higher velocities across the board had the outside temperature been higher.
The photo below shows how the barrel was cut down, inch-by-inch, using a rotary saw. The barrel was pre-scored at inch intervals. As the main purpose of the test was to measure velocity (not accuracy) the testers did not attempt to create perfect crowns.
6.5 Creedmoor vs. Other Mid-Sized 6.5mm Cartridges
The 6.5 Creedmoor is a very popular cartridge with the tactical and PRS crowd. This mid-size cartridge offers good ballistics, with less recoil than a .308 Winchester. There’s an excellent selection of 6.5mm bullets, and many good powder choices for this cartridge. When compared to the very accurate 6.5×47 Lapua cartridge, the 6.5 Creedmoor offers similar performance with less expensive brass. For a tactical shooter who must sometimes leave brass on the ground, brass cost is a factor to consider. Here’s a selection of various 6.5mm mid-sized cartridges. Left to right are: 6.5 Grendel, 6.5×47 Lapua, 6.5 Creedmoor with 120gr A-Max, 6.5 Creedmoor with 142gr Sierra MK, and .260 Remington.
When asked to compare the 6.5 Creedmoor to the 6.5×47 Lapua, Rifleshooter.com’s editor stated: “If you don’t hand load, or are new to precision rifle shooting, get a 6.5 Creedmoor. If you shoot a lot, reload, have more disposable income, and like more esoteric cartridges, get a 6.5×47 Lapua. I am a big fan of the 6.5×47 Lapua. In my personal experience, the 6.5×47 Lapua seems to be slightly more accurate than the 6.5 Creedmoor. I attribute this to the quality of Lapua brass.” Now that Lapua offers 6.5 Creedmoor brass with small primer pockets, the 6.5 Creedmoor is even more attractive.
The creator of Rifleshooter.com also operates a Custom Rifle Building enterprise and gun shop in Long Island, New York: 782 Custom Guns Ltd.. He tells us: “We offer an unparalleled level of gunsmith machine shop services in the Long Island region. From precision rifles (USMC M40A3/A5/A6 XM3 clones) to customized Remington 870 and Mossberg 590 shotguns, and customized 1911s, chances are if you can dream it, we can build it!”
On the Defensive Edge Website, you’ll find a good article by Shawn Carlock about wind reading. Shawn is a veteran law enforcement marksman and a past USPSA national precision rifle champion. Shawn offers good advice on how to estimate wind speeds and directions using a multitude of available indicators — not just your wind gauge: “Use anything at your disposal to accurately estimate the wind’s velocity. I keep and use a Kestrel for reading conditions….The Kestrel is very accurate but will only tell you what the conditions are where you are standing. I practice by looking at grass, brush, trees, dust, wind flags, mirage, rain, fog and anything else that will give me info on velocity and then estimate the speed.”
Shawn also explains how terrain features can cause vertical wind effects. A hunter on a hilltop must account for bullet rise if there is a headwind blowing up the slope. Many shooters consider wind in only one plane — the horizontal. In fact wind has vertical components, both up and down.
» CLICK HERE to Download Full Article as Printable PDF
If you have piloted a small aircraft you know how important vertical wind vectors can be. Match shooters will also experience vertical rise when there is a strong tailwind blowing over an up-sloping berm ahead of the target emplacements. Overall, Shawn concludes: “The more time you spend studying the wind and its effect over varying terrain the more successful you will be as a long-range shooter and hunter.”
This Editor, as a life-long sailor, also has some suggestions about wind. Many folks may not realize that wind can cycle, both in direction and in speed (velocity). If you are patient, you should be able to sense the timing of the cycles, which will help you predict shifts in wind direction and velocity. While it is tempting to shoot in the lulls, sometimes the true wind vector (angle + speed) may be most constant when the wind is blowing stronger.
Another tip for hunters is to orient your shot, when possible, in alignment with the wind direction. Try to face into the wind, or have the wind at your back. This is especially effective when shooting in a varmint field. Use a string of tape on a pole to show wind angle. Then shoot directly into the wind or with the wind directly at your back. This will minimize horizontal deflection caused by the wind.
There is an informative article on the NRA’s American Hunter website regarding suppressor use for hunting. The article, What Hunters Need to Know About Suppressors, answers common questions about suppressor use on hunts. Suppressors are currently legal in 42 states, and can be used for hunting in 41 states (Connecticut prohibits suppressor use while hunting).
As that NRA article is a few years old, it does NOT have current information on suppressor purchasing rules and fees. Effective 1/1/2026, there is NO $200 fee to acquire a suppressor (aka silencer). There have been recent legal challenges to the NFA paperwork rules for purchasing a suppressor. Some states are honoring the injunction issued by a Federal court in Silencer Shop v. ATF, so in some states an NFA Form 4 may not be required. But you should still expect to fill out some paperwork in most states. Get current suppressor regulations by state on the Silencer Shop website.
The American Hunter article also discusses how well suppressors actually reduce noise. User should be aware that the sound level of a large, centerfire hunting cartridge will still exceed 130 decibels (dB) on average, even with a typical suppressor (silencer) in place. For that reason, we recommend that hunters continue to wear ear protection even when they shoot suppressed.
For example, Thunder Beast Arms says its Ultra 9 Suppressor will reduce the report of a .308 Win to 132-134 dB: “The ULTRA 9 will suppress a typical .308 bolt-action rifle down to approx. 132-134 dB. It also has very little or no ‘first round pop’ (FRP) in most applications.” NOTE: These dB levels are measured in accordance with MIL-STD-1474D using BK 2209 SLM offset one meter from muzzle.
How Loud Are Unsuppressed Rifles?
Firearms Are Loud — 140 dB to 175 dB. Audiology group ASHA explains: “Almost all firearms create noise that is over the 140-dB level. Exposure to noise greater than 140 dB can permanently damage hearing. A small .22-caliber rifle can produce noise around 140 dB, while big-bore rifles and pistols can produce sound over 175 dB. Firing guns in a place where sounds can reverberate, or bounce off walls and other structures, can make noises louder and increase the risk of hearing loss. Also, adding muzzle brakes or other modifications can make the firearm louder. People who do not wear hearing protection while shooting can suffer a severe hearing loss with as little as one shot[.] Audiologists see this often, especially during hunting season when hunters and bystanders may be exposed to rapid fire from big-bore rifles, shotguns, or pistols.” Source: ASHA, Recreational Firearm Noise Exposure.
How Much Does a Good Suppressor Really Reduce Firearm Sound Levels?
That depends on the rifle, the cartridge, and the effectiveness of the suppressor. The American Hunter article explains: “Suppressors retard the speed of propellant gases from the cartridge that rapidly expand and rush out of the barrel. It’s these gases that produce the loud boom that’s heard for miles. A suppressor’s series of internal baffles slows these gases so they are not all released at once, thereby muffling the sound.” Many good commercial suppressors can achieve 30-35 dB sound suppression. However, Zak Smith of Thunder Beast Arms says: “There are a bunch of manufacturers who publish values that are not reproducible, or use an ad-hoc test instead of a mil-spec test. In many cases we’ve tested the exact same suppressors they’ve advertised with 30-40 dB reductions and found they are actually in the high 20s instead.”
Again, for this reason, we recommend that hunters use ear protection, such as NRR 25+ banded ear plugs, even when shooting suppressed.
Choosing a Suppressor for Hunting Use
The American Hunter article explains that there are many types of suppressors on the market. Bigger suppressors are heavier, but they normally are more effective. You also have a choice in muzzle attachments:
“For most hunting applications, direct thread is the best choice. If you intend to buy only one suppressor yet you have multiple guns, it’s advantageous to buy a model sized and rated for the largest caliber you intend to use. While a suppressor made specifically for a .223 Rem. will reduce the sound of that round slightly better than a model made for .30 caliber, for example, you can use a .30-caliber can for smaller calibers — but not vice-versa. In general, the bigger the can, the more it reduces sound. Smaller suppressors, however, are easier to carry in the woods.” — American Hunter
States Where Suppressor Ownership is Allowed
Currently, the following 42 states allow private ownership of suppressors: AL, AK, AZ, AR, CO, CT, FL, GA, ID, IN, IA, KS, KY, LA, ME, MD, MI, MN, MS, MO, MT, NE, NV, NH, NM, NC, ND, OH, OK, OR, PA, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY. NOTE: Suppressors are legal in Connecticut, but hunting with silencers is not allowed in Connecticut.
How to Acquire a Suppressor
To acquire a quality suppressor, you first should shop around, comparing verified performance and price. Unfortunately some manufacturer’s dB (sound level) claims are exaggerated. Give due consideration to size, weight, and durability. When you’ve selected a brand and model, find a reputable dealer authorized to sell suppressors. There have been many recent policy changes by the ATF. Such changes are covered by this video:
BENEFITS OF SILENCERS
NOISE REDUCTION
According to OSHA, the threshold for a hearing safe impulse noise is 140 dB. Without hearing protection, exposure to any impulse noise over 140 dB causes varying degrees of permanent noise-induced hearing loss, which can also lead to tinnitus. Most well-engineered silencers take the dB level of their host firearm well below 140 dB, making those silencers effective primary hearing safety devices. You should always still wear hearing protection (muffs or plugs) when using suppressors.
RECOIL REDUCTION
By containing the explosion at the muzzle, suppressors significantly reduce perceived recoil energy, reduce the rifle’s rearward movement on recoil, and reduce rifle torquing and muzzle flip. The reduction of recoil (and rifle torquing/hopping) lessens shooter fatigue and helps the shooter get his sight picture back on target rapidly after firing. With smaller calibers, a suppressor may enable the shooter to maintain a nearly-continuous sight picture, following the shot into the target. In addition, by reducing felt recoil (and muzzle blast), a suppressor can help inexperienced shooters avoid flinching.
Will you be traveling out of state this spring? Or do you have questions about your own state’s firearms laws? Then you’ll want to have quick access to summaries of gun laws in America’s 50 states. Here’s a very valuable online resource you may want to bookmark.
The NRA-ILA (Institute for Legislative Action) has a great feature on the NRA-ILA’s homepage. From the NRA home page, NRA-ILA.org, you can instantly access a host of information for all 50 states. There is a menu box that includes all 50 states plus the District of Columbia, New York City, and Guam. Look for the box that appears below the “NRA-ILA Top Stories Banner”:
Alternatively, look at the UPPER LEFT for three horizontal lines. Click that to open a drop-down menu. Then select the third line Gun Laws > State Gun Laws. That will open a page with all the 50 states listed in order A to Z. Or bookmark the NRA-ILA State Gun Laws Page.
Shown below is part of the NRA-ILA’s coverage for Texas. There is a summary of the most important Texas gun laws. Below that is a map showing the states that recognize Texas carry permits.
Today — September 26, 2026 — is National Hunting and Fishing Day (NHFD). We’re proud to recognize how important hunting is for millions of Americans — as a source of food for families and as an important connection with nature and the outdoors. The NFHD website has helpful resources for hunters, and in this article we provide links for Where to Hunt, How to get Hunting Licenses, and Hunter Education.
NHFD was first established by President Nixon in 1972. According to NationalToday.com, NHFD’s “roots go back more than 100 years to President Theodore Roosevelt, who introduced the first laws regulating the hunting of wildlife in the United States.”
This month we hope some of our readers can take new shooters afield and introduce them to hunting. Many hunters receive their first introduction to hunting from family or friends as a tradition passed down from generation to generation. There are over 9.2 million hunters in the United States.
To have a successful hunt you must first get to areas where game thrives. Finding the right places to hunt is essential. The NSSF offers a nationwide Where-to-Hunt database of hunting areas. You can click on a particular state, then specify the specicies you wish to hunt. This is a very useful resource.
In most states, when hunting game animals, you’ll need a hunting license and/or zone permit. The Federal Fish & Wildlife Service has state-by-state listing for hunting licenses on FWS.gov. Click the box below to learn how to get hunting licenses in your region.
For all hunters, whether they have mentors to guide them or not, the most important first step into the woods begins with a state-certified hunter education course. Click the box below to see hunting education opportunities around the nation.
Game Resources — To learn more about different game species, click these NSSF links:
To help you prepare for a fall hunt, here is a free, printable Deer Practice target. Hone your skills on a trio of bucks with a red bullseye centered on the animals. You can print the targets in black and white, but they look best in color. Right-click the image below to download a FREE printable target PDF file.
NRA publication Shooting Sports USA (SSUSA) has thousands of articles online, all free for the reading. Many of these stories have been written by top competitors, including National and Olympic Champions. You will find SSUSA articles spotlighted every week on the NRA Competitive Shooting Facebook page. We recommend you bookmark that page as a valuable resource. Here are four notable SSUSA articles that have been featured on Facebook this month. Go to SSUSA.org to see even more current articles, with new content every day.
CLICK Above Image to READ Mirage Article
Here is an insightful, fairly lengthy 1850-word article about the phenomenon we call mirage. The article explains how and why mirage appears, how it can best be monitored, and how mirage can indicate both wind velocity and direction. Top competitors follow the adage “Mirage is your friend”, because mirage can often be the most important indicator of wind variables — sometimes even more important than wind flags. “The mirage is more sensitive than the flags since it has less inertia and momentum”, wrote Desmond T. Burke, in his book, Canadian Bisley Shooting, an Art and a Science.
Well worth reading, this SSUSA article talks about the properties of mirage. Here is a sample:
“Mirage — can make all the difference between a shot landing squarely in the X-ring or being victimized by an undetected downrange breeze. The true power of mirage is found in its ability to betray the subtlest of breezes downrange. Its fluid movement… can not only provide wind direction, but speed as well.
Typically, the ability to detect mirage is maximized on warm, sunny and sultry days. Expect mirage to be most pronounced in mid-morning or early afternoon, although it ignores these rules with regularity[.]
Mirage is extremely powerful at identifying winds of less than 12 mph, particularly those gentle breezes subtle enough to not even bother moving the flags.
When there is no wind, or a gentle head or tail wind, mirage will appear to be ‘bubbling’ directly up from the ground. Many call this ‘boiling’, and it is probably the easiest of all to detect.
As a general rule of thumb, when wind speed increases, overall height of the waves produced by the mirage is reduced. Large peaks and valleys in the waves mean that particular mirage is being driven by a very slight breeze. Conversely, crest size is reduced with wind speed, making it harder and harder to detect, until the mirage disappears entirely at somewhere around 12 miles per hour. In other words, the taller mirage’s waves appear, the slower the breeze.”
Diagram from SouthTexasShooting.org.
CLICK Above Image to READ Barrel Break-In Article
Authored by the late Glen Zediker, this article covers barrel break-in procedures. It is particularly useful for dealing with factory barrels. We CAUTION readers — with outstanding, hand-lapped custom barrels from top barrel-makers, you may want to do very little break-in — clean sparingly and keep barrel heat low. Do NOT use abrasives aggressively. On our Krieger and Brux barrels, we simply wet-patched every 2-3 rounds for 20 rounds and the barrels shot superbly from the start with minimal fouling. But for factory barrels, a moderate break-in process may prove beneficial.
Zediker explains: “Lesser, lower-cost barrels are going to have more pronounced … imperfections within the bore[.] These imperfections are largely tool marks resulting from the drilling and rifling processes. And if it’s a semi-automatic, like an AR-15, there might be a burr where the gas port was drilled. The goal of break-in is to knock down these imperfections, thereby smoothing the interior surface.”
CLICK Above Image to READ Case Failure Article
As one who has experienced a cartridge case-head blow-out with a 9mm pistol, this Editor is very conscious of the risks involved and the damage a blow-out can do to the pistol, to the magazine, and (worst of all) to the shooter. Even with new brass, the possibility of a case failure is always present. And even if the case remains intact, we’ve seen primer failures that create a dangerous jet back towards the pistol shooter. That’s why shooters should always employ protective eyewear whenever they shoot.
CLICK Above Image to READ Revolver Forcing Cone Article
We love our wheelguns, but there’s no doubt that forcing cone damage can occur, particularly with hot loads and if your cylinder-to-barrel gap is excessive. This article explains how to inspect your revolvers, and how to mitigate the likelihood of forcing cone damage. The article also explains how to clean your revolvers properly. This is very important to avoid build-up of lead and powder residues.
With hunting season in full swing, many folks will be shooting factory hunting ammunition. In setting scope elevation clicks for various distances, it would seem logical to use the velocity listed on the ammo box with your ballistics App or drop chart. But that could be a problem. You SHOULD still chronograph the ammo to determine its true muzzle velocity (MV) in your rifle. Read on to understand why.
