Myth busting - General Reloading & Handloading Discussion

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I have done several myth busting threads with emphasis on factual data that were measurable and repeatable.

What "myth busting" have you come across (intentionally or unintentionally) during your reloading and handloading journey?
 
In the Long Range BR game we tune for positive compensation as when exit timing becomes optimized rounds will impact on the same horizontal plane despite and increase in charge. ( node)
I have found this to be true where in comparison a computer/ ballistic calculator would suggest an elevation change.
I don't pretend to know the reason why I just know what does.
 
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Myth 1: Glocks should not fire reloaded ammo because of un supported chamber

Myth 2: Powder makes good fertilized

Myth 3: 300 blk out will not chamber in 5.56

Myth 4: If you toss live ammo in a fire, it will take out the whole campsite
 
Speaking of Myths....Myth Busters on TV, supposedly busted a myth several years ago, that leaving a laser bore sight in the end of a high powered rifle barrel, and firing a round having forgot it was there would peel the barrel back like a peeled banana.

They couldn't repeat it, so called it "busted".

However .... I watched my wife's nephew's son do just that with a brand new Remington 700 BDL chambered for 7mm Magnum! He was wearing shooting glasses and nary had a scratch. (tough action!) I was tasked with taking the gun to my home town's best gunsmith to see if he would put a new barrel on it......the action looked fine. The gun smith took pictures of the rifle, but wouldn't touch it otherwise. He claimed the action was most likely compromised enough to make the gun unsafe......so I took back the bad news....and they displayed it for a while, then chucked it.

I'm guessing the Myth Busters crew, didn't try it on a high pressure round like the 7mm Mag.;) (I wish I had done what the smith did....take pictures! Then I could've shown them off here)
 
Speaking of Myths....Myth Busters on TV, supposedly busted a myth several years ago, that leaving a laser bore sight in the end of a high powered rifle barrel, and firing a round having forgot it was there would peel the barrel back like a peeled banana.

They couldn't repeat it, so called it "busted".

However .... I watched my wife's nephew's son do just that with a brand new Remington 700 BDL chambered for 7mm Magnum! He was wearing shooting glasses and nary had a scratch. (tough action!) I was tasked with taking the gun to my home town's best gunsmith to see if he would put a new barrel on it......the action looked fine. The gun smith took pictures of the rifle, but wouldn't touch it otherwise. He claimed the action was most likely compromised enough to make the gun unsafe......so I took back the bad news....and they displayed it for a while, then chucked it.

I'm guessing the Myth Busters crew, didn't try it on a high pressure round like the 7mm Mag.;) (I wish I had done what the smith did....take pictures! Then I could've shown them off here)
7mm is a way underrated round! what’s better,,, 7STW
 
Dillion is the ONLY equipment to buy and use, Has anyone really cried when they bought one??
Tears of joy ... Right after the "empty feeling" of wiping out a big chunk from bank account. :D

< And I have an agreement with wife that she gets to spend double what I spend on my hobbies ... And after retirement, she has "somehow" talked me into going 3x+ ... :p >

But remember. A reloading press is the thing that goes up and down? As long as your finished round's dimensions are within .001" of OAL, your pistol/barrel won't know the difference which color press the rounds were loaded from.
 
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I have done several myth busting threads with emphasis on factual data that were measurable and repeatable.

What "myth busting" have you come across (intentionally or unintentionally) during your reloading and handloading journey?
That large rifle primers are "fine to use" in large pistol cases. I never tried it but know at least a couple of fellas who did and regretted it.
 
Tears of joy ... Right after the "empty feeling" of wiping out a big chunk from bank account. :D

< And I have an agreement with wife that she gets to spend double what I spend on my hobbies ... And after retirement, she has "somehow" talked me into going 3x+ ... :p >

But remember. A reloading press is the thing that goes up and down? As long as your finished round's dimensions are within .001" of OAL, your pistol/barrel won't know the difference which color press the rounds were loaded from.
you beat me too it… dillion 750 or a new 10mm double stack???!!!! lol
 
That you shouldn't use small rifle primers in place of small pistol. Myth busted here.
https://www.thehighroad.org/index.p...m-and-small-rifle-in-pistol-ammuntion.881557/
Yup. That myth was busted a long time ago. The uncle who taught me to reload in the 70's told me to use standard small rifle primers in my 200gr cast Linotype .357Mag loads. I was loading over maximum per the Lyman manual (#45, still got it) and he said Unique needed a longer burn with such heavy charges and bullets in my Marlin '94 and they wouldn't hurt my 4-5/8" Ruger Blackhawk one bit. Same primer but with a slightly thicker cup and slightly longer burn time. Uncle was an Army chemist, a bio-weps man in Korea during the war, and learned a lot about ordnance in the process.
 
In the Long Range BR game we tune for positive compensation as when exit timing becomes optimized rounds will impact on the same horizontal plane despite and increase in charge.
I have found this to be true where in comparison a computer/ ballistic calculator would suggest an elevation change.
I don't pretend to know the reason why I just know what does.
barrel time and muzzle rise differences affect the trajectory arc of the bullet on the way to the target. the differences can add or subtract from one another. just another variable relationship to deal with in this game.

the british military did a study on why the smle rifle @ 1500 yards was more accurate than @ a shorter distance (1000 yards i think). the relationship of barrel time (variations in bullet muzzle velocity) and muzzle rise (variations in trajectory) matched better @ 1500 yards and gave better groups.

murf
 
Since I started 1k BR I have noticed my one thousand yard tune always shoots small at 500 yards but not the opposite.
Who tuned what and when at what distance may play a part as well, im just a ham and Egger so maybe im wrong.
 
Can you give specifics on why they regretted it? Didn't fit right, over pressure, inaccurate . . . just what?
One was a Winchester '92 in .44-40 that slamfired with the breech partially unlocked on cycling. The other was a 1991A1 .45ACP that slamfired on feeding and fired out of battery. Good news is nobody was hurt in either incident but it was definitely very bad for the guns and more than a little disconcerting. Large rifle primers are just too long for unmodified large pistol cases. Which makes them not just fine as a substitute.
 
Dillion is the ONLY equipment to buy and use, Has anyone really cried when they bought one??

Maybe not, then. Most likely that could happen when they find out it isn't as idiot-proof or perfect as the blue hype suggests, or if they break the aluminum arm linkage, or when they realize how expensive it is to add 4 more calibers especially with case feeder and a commercial bullet feeders involved. ;)

Good presses yes.....perfect presses no....no such thing. Another Myth.
 
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After spending over $160,000 on reloading equipment/components I told my wife, "But honey, I saved you like around $200,000 compared to buying factory ammunition ..." :eek:

Wife was not convinced ... :oops:

< We now have an agreement that wife gets to spend double what I spend on my hobbies. :p Several years ago, I spent over $7000 on gun stuff over Black Friday/Christmas ... Yup, wife proceeded to spend $14,000 the following year ... :p:p I buy a Dillon 550C and wife now has a BIG chicken house with automatic doors >

Believe me, reloading DOES NOT save money ... That myth was busted like within 3 months of me reloading 4000-5000 rounds a month compared to shooting 300-500 factory rounds a month. :D
 
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Myth: Higher velocity = Greater accuracy
Myth: 300 BLK won’t chamber in a 5.56
Myth: certain bulk propellants and canister propellants are identical
 
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