quickload software users?

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  • Last Post 18 July 2023
linoww posted this 15 July 2023

I've had the program a year and just started fooling with it.Mainly to get pressure info for smokeless in antique guns.many times the rifle data is very close to the loading manuals and my chronograph data .

I'm finding on handgun data it's often not close. is there a setup im missing besides changing barrel length?

"if it was easy we'd let women do it" don't tell my wife I said that!

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Bryan Austin posted this 18 July 2023

I used Quickload to compare published loads vs my strain gage results. I no longer use Quickload

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Bud Hyett posted this 16 July 2023

Somewhere in the instructions, the "Shot Start Density" value can be tailored to the lead hardness.

Altering this value also affects velocity readings. 

Farm boy from Illinois, living in the magical Pacific Northwest

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RicinYakima posted this 16 July 2023

In a 1930's Belding and Mull unit, FWIW.

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linoww posted this 15 July 2023

I believe lyman used copper crusher.

"if it was easy we'd let women do it" don't tell my wife I said that!

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Aaron posted this 15 July 2023

Not necessarily. Lyman doesn't use QuickLoad. We don't know what they use. Too many variables and too many unknowns.

With rifle in hand, I confidently go forth into the darkness.

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linoww posted this 15 July 2023

I'm using NOE bullet files and have added for cylinder length. In 45 autorim I'm coming up 200 fps faster than Lyman and my chronograph. load is 5g Unique with 245g bullet. I get mid 500s out of my pistol yet quickload shows about 750. Barrel is 7.5" maybe I'm doing something wrong?

"if it was easy we'd let women do it" don't tell my wife I said that!

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Aaron posted this 15 July 2023

Barrel length must be tweaked to get correct "bullet travel" number. The software doesn't know about cylinders. Make barrel length inclusive of cylinder length to get close then tweak it for correct bullet travel length. Remember that some bullets set farther back in the cylinders too.

When picking a cast bullet, I use the Lee bullet file and then correct the data for the actual bullet (Accurate Mold) I am using. Shank length is important as is seating depth. Incorrect seating depth in high intensity cartridges will wreak havoc with your calculations. It must be correct since .10" in a 9mm can almost double chamber pressure depending on propellant.

My 32-20 loads with a 120gr cast bullet are very accurate calculations if you have the bullet measurements and seating depth correct.

Heavy crimps can alter the "shot start" pressure which can also wreak havoc with calculations. Since we don't know shot start pressure, we must accept defaults. If you have a heavy crimp, you can play with shot start pressure to affect MV that you record. Remember that V at 10 feet, is NOT MV.

Those are some of the things I play with. It's very neat software!

Notice to get the bullet to show travel in a 7.5" barrel for real, I had to specify the barrel length was 8.5" to get the travel length correct.

 

With rifle in hand, I confidently go forth into the darkness.

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