Calculating Min/Max Pistol Caliber Loads
Posted: Mon Apr 26, 2010 2:57 pm
In a previous post I had asked about shooting 44 mag in the pistol caliber class. After realizing that there is no getting around it, I have decided to pull out all of my reloading stuff, set it up and start reloading for 44 mag.
Now, though, I am not exactly what I should be 'shooting' for in my loads. I have read through the threads where members have given loading information for some different calibers, and I am trying to get a handle on exactly what I need to be looking for.
I am sure there are a lot of members here who have been doing this for quite some time, and have it down to a science. So I am wondering if there is some kind of formula I can use in determining what my minimum and max loads should look like for pistol caliber class. Is there a formula similar to knockdown power that can be used to determine if a load is within a certain 'guideline' where it would not damage targets?
I'm looking at using 240gr RNFP bullets. I'm trying to determine what the maximum velocity would be that would put me in a safe zone, where I wouldn't go to a club and start ruining targets. Ideally I would like to have one load for CPTR, but if I need to have separate loads for turkeys and/or rams, I'm okay with that. I just don't know what I can get away with in regards to velocity, that would allow me to be confident.
If anyone has example loads for 44 mag, that would be great. Even better, though, would be some kind of formula or guideline that I could follow (such as FPE, Taylor Knockdown, etc.) that would let me know where I stand regardless of weight of bullet or caliber. I'm surprised the NRA rules don't have some kind of guideline for what they would consider to be 'safe' or within spec.
I feel like its the chicken or the egg problem. I don't want to go to a shoot until I sight in and practice with a load. But I don't know if I will be using a 'safe' load until I go (and possibly get asked to sit aside if the rounds are too hot). In the last thread I posted some recommended 44 Special level loads or Cowboy loads. Out of a handgun Ultramax Cowboy 44 Mag 240gr loads show a velocity of 750 fps. From what I have read this uses a small amount of fast burning powder, which might now really correlate to much higher velocity out of a 24" barrel. I would also imagine that shooting a load that has a velocity of 750 fps, might be crazy trying to sight it in at 100 meters. I'm not sure though, since I never tried.
How should I go about starting to find loads to begin sighting in with and loading for my first shoot?
Thanks for any thoughts - I'm a little confused on how to get started with this...
Now, though, I am not exactly what I should be 'shooting' for in my loads. I have read through the threads where members have given loading information for some different calibers, and I am trying to get a handle on exactly what I need to be looking for.
I am sure there are a lot of members here who have been doing this for quite some time, and have it down to a science. So I am wondering if there is some kind of formula I can use in determining what my minimum and max loads should look like for pistol caliber class. Is there a formula similar to knockdown power that can be used to determine if a load is within a certain 'guideline' where it would not damage targets?
I'm looking at using 240gr RNFP bullets. I'm trying to determine what the maximum velocity would be that would put me in a safe zone, where I wouldn't go to a club and start ruining targets. Ideally I would like to have one load for CPTR, but if I need to have separate loads for turkeys and/or rams, I'm okay with that. I just don't know what I can get away with in regards to velocity, that would allow me to be confident.
If anyone has example loads for 44 mag, that would be great. Even better, though, would be some kind of formula or guideline that I could follow (such as FPE, Taylor Knockdown, etc.) that would let me know where I stand regardless of weight of bullet or caliber. I'm surprised the NRA rules don't have some kind of guideline for what they would consider to be 'safe' or within spec.
I feel like its the chicken or the egg problem. I don't want to go to a shoot until I sight in and practice with a load. But I don't know if I will be using a 'safe' load until I go (and possibly get asked to sit aside if the rounds are too hot). In the last thread I posted some recommended 44 Special level loads or Cowboy loads. Out of a handgun Ultramax Cowboy 44 Mag 240gr loads show a velocity of 750 fps. From what I have read this uses a small amount of fast burning powder, which might now really correlate to much higher velocity out of a 24" barrel. I would also imagine that shooting a load that has a velocity of 750 fps, might be crazy trying to sight it in at 100 meters. I'm not sure though, since I never tried.
How should I go about starting to find loads to begin sighting in with and loading for my first shoot?
Thanks for any thoughts - I'm a little confused on how to get started with this...