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Old May 25, 2019, 09:57   #1
kotengu
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QuickLOAD help?

I realize what I'm asking here, so "F&%k off and buy your own copy of the software, cheap a$$" is a perfectly reasonable answer. But it doesn't hurt to ask, right?

Can someone tell me the bore pressure just before the bullet leaves the muzzle of the following:

300 Blackout in a 1:7 twist 7.5" barrel:
220gr Sierra Match King over 11.7gr AA1680
125gr Sierra HP over 20.0gr of Enforcer

.308 in a 1:10 twist 18" barrel:
155gr Nosler Custom Competition JHPBT over 43.0gr of IMR8208XBR
175gr Sierra Match King over 45.0gr of Varget

Thanks in advance, and I'll buy the beer next time we meet up!
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Old May 25, 2019, 11:53   #2
tdb59
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Quote:
Originally Posted by kotengu View Post
I realize what I'm asking here, so "F&%k off and buy your own copy of the software, cheap a$$" is a perfectly reasonable answer. ...!
Please do that.

Then I can bother you for data....




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Old May 26, 2019, 17:15   #3
David N.
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Quote:
Originally Posted by kotengu View Post
I realize what I'm asking here, so "F&%k off and buy your own copy of the software, cheap a$$" is a perfectly reasonable answer. But it doesn't hurt to ask, right?

Can someone tell me the bore pressure just before the bullet leaves the muzzle of the following:

300 Blackout in a 1:7 twist 7.5" barrel:
220gr Sierra Match King over 11.7gr AA1680
125gr Sierra HP over 20.0gr of Enforcer

.308 in a 1:10 twist 18" barrel:
155gr Nosler Custom Competition JHPBT over 43.0gr of IMR8208XBR
175gr Sierra Match King over 45.0gr of Varget

Thanks in advance, and I'll buy the beer next time we meet up!
I'll pm you some numbers. Not sure I trust everything I'm seeing and I have no way to verify any of it.
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Old May 26, 2019, 19:09   #4
Mebsuta
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Is Quickload the Desktop Dyno of reloading?

I can design awesome camshafts that might run for 5 minutes before going flat.
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Old May 26, 2019, 21:18   #5
kotengu
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I'll pm you some numbers. Not sure I trust everything I'm seeing and I have no way to verify any of it.
This place rocks - thank you so much!!!

Quote:
Originally Posted by Mebs
Is Quickload the Desktop Dyno of reloading?

I can design awesome camshafts that might run for 5 minutes before going flat.
Kinda. But like all good design and theory, it needs to be tempered with a healthy dose of reality. I'm not using it for load development, but to check my suppressor designs and be sure the forces won't laugh at my material choices and wall thicknesses.
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Old May 27, 2019, 16:06   #6
David N.
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Originally Posted by Mebsuta View Post
Is Quickload the Desktop Dyno of reloading?

I can design awesome camshafts that might run for 5 minutes before going flat.
I certainly don't trust the data off hand, but I've found it to be useful. I will generally chronograph loads as I work up toward the book maxes. I can then compare that information to what QL predicts for the same charges. With accurate data about the bullet, cartridge, and load, it can be extremely accurate. When it is, I will trust its predictions for other loads and am willing to use it for load development. When it isn't accurate, I don't.

It can also provide other information, such as time to bullet exit and the pressure from ignition to exit. Are these perfect? I doubt it. But I bet they're a lot closer than any wild guess I'd come up with.
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