Texasgrillchef
member
- Joined
- Jun 29, 2019
- Messages
- 700
First off. I have a full understanding of the laws of physics and chemistry when it comes to how firearms & ammunition work and operate. Including many of the caveats.
Second I fully admit i am a reloading newbie and have only loaded about a total of 10,000 rounds so far in a combination of 9mm, 45 ACP and 45 Colt. I have several reloading manuals and data sheets from the makers of the projectiles i buy as well as from the various companies that make the smokeless powder.
I fully understand how to work up and test a load, or at least i believe i do!
However i do have some questions. Things I have noticed that leave me baffled as i dont understand the math &/or logic behind them in reference to the laws of Physics and chemistry.
We all know more powder equals a bigger bang, more energy released and more pressure in the chamber.
We also know the more mass an object is the more energy it takes to change its speed. Thus it takes more energy to make a 230 grain bullet move at 800fps then it does a 185 grain bullet.
So here are my current question to start. I will have more for this thread as answers start coming in.
The people who publish, make and test the loading manuals we purchase.... what education do they have? Are they “Balistics Engineers”? What mathematical formulas are they using? Are they looking at tables for powder and how much energy is released per grain of powder and tables of how fast it burns?
What i am trying to learn and ascertain is how do they come up with the figures before they even test them.
As we know there are 6 steps to a scientific procedure:
Which leads to another question. Commercial ammunition is made to work in most guns, for safety. So if i buy a box of 45 acp Winchester white box ammo. We assume it will work safely in all 45 acp
guns.
If i reload my own 45 acp ammo but have more then one 45 acp gun, i am assuming i should test it in all my 45 acp guns?
Thanks
Second I fully admit i am a reloading newbie and have only loaded about a total of 10,000 rounds so far in a combination of 9mm, 45 ACP and 45 Colt. I have several reloading manuals and data sheets from the makers of the projectiles i buy as well as from the various companies that make the smokeless powder.
I fully understand how to work up and test a load, or at least i believe i do!
However i do have some questions. Things I have noticed that leave me baffled as i dont understand the math &/or logic behind them in reference to the laws of Physics and chemistry.
We all know more powder equals a bigger bang, more energy released and more pressure in the chamber.
We also know the more mass an object is the more energy it takes to change its speed. Thus it takes more energy to make a 230 grain bullet move at 800fps then it does a 185 grain bullet.
So here are my current question to start. I will have more for this thread as answers start coming in.
The people who publish, make and test the loading manuals we purchase.... what education do they have? Are they “Balistics Engineers”? What mathematical formulas are they using? Are they looking at tables for powder and how much energy is released per grain of powder and tables of how fast it burns?
What i am trying to learn and ascertain is how do they come up with the figures before they even test them.
As we know there are 6 steps to a scientific procedure:
- Step 1: Ask a question. “Whats the min/max powder we can use for a 185gr bullet ...
- Step 2: Do background research. Previous reloading manuals, data test sheets of the powder testing maybe?
- Step 3: Construct a hypothesis. ...
- Step 4: Test your hypothesis by doing an experiment. ... checking the loads and working it up.
- Step 5: Analyze the data and draw a conclusion. ... checking all the indicators for over/under loading
- Step 6: Share your results. Publish a new loading manual version.
Which leads to another question. Commercial ammunition is made to work in most guns, for safety. So if i buy a box of 45 acp Winchester white box ammo. We assume it will work safely in all 45 acp
guns.
If i reload my own 45 acp ammo but have more then one 45 acp gun, i am assuming i should test it in all my 45 acp guns?
Thanks