Author Topic: 45 ACP  (Read 840 times)

Black Mike

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45 ACP
« on: July 06, 2018, 08:06:48 PM »
Trying to determine a load for Wild Bunch. Using data published for clean shot powder I had min and max loads. Trying to get mid range load just above power factor of 150. I plotted min and max points on chart and estimated loads along the line between two points. Does this make sense?



https://imgur.com/a/3HkcyJQ]https://imgur.com/a/3HkcyJQ]https://imgur.com/a/3HkcyJQ
« Last Edit: July 06, 2018, 08:18:51 PM by Black Mike »

KingSnake

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Re: 45 ACP
« Reply #1 on: July 06, 2018, 08:26:04 PM »
I would load up 3.6 grains and go chrono and be happy with 161 pf.
I would never try to get close to 150 pf.


Kingsnake

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Re: 45 ACP
« Reply #2 on: July 07, 2018, 09:19:27 AM »
I only use WST for 45ACP, BUT I can tell you you do NOT want to load below 160pf.  Depending on the weather and the chrono in use it is not unusual to get 100fps difference and if you are close to 150 you could easily fail pf testing. PF testing results are not appealable.
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Garrison Joe

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Re: 45 ACP
« Reply #3 on: July 07, 2018, 02:04:37 PM »
To your original question, yeah, you can usually get close  to an intermediate velocity of your choice using a straight line interpolation between a published min and max load.  Be aware, though, that bullet seating depth, bullet diameter, alloy hardness, lube type, barrel groove diameter, and lots of other variables can add up to give you +/- 200 FPS on a .45 auto load compared to that "good published data."  ONLY testing over the chrony with your loads and your gun is good enough for WB.

And another big + to never TRYING to run at 150 PF.  I run at 167 PF and never look back at "bargaining with a MDQ" when a cold day or a backup gun has to be deployed.

Good luck, GJ

 
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Black Mike

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Re: 45 ACP
« Reply #4 on: July 07, 2018, 07:38:02 PM »
Thanks!  Good advice.

VICIOUS

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Re: 45 ACP
« Reply #5 on: October 07, 2018, 02:40:48 PM »
Hi Gang. I have been checked at 250 PF from the rifle. It can get real cold up north. ;D

Flash

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Re: 45 ACP
« Reply #6 on: October 07, 2018, 04:52:11 PM »
Hi Gang. I have been checked at 250 PF from the rifle. It can get real cold up north. ;D
Just above 150 is what you need, is that a typo?
« Last Edit: October 07, 2018, 04:55:25 PM by Flash »
Started CAS in 2012, WBAS in 2014 & have been to EOT twice & Winter Range once. Jedi Gunfighter #219 Have never shot any CA category but Gunfighter and any WB category but Traditional. In 2015 got top ten buckle Winter Range Senior Gunfighter & top ten at EOT Sen. Gunfighter & WB Traditional

VICIOUS

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Re: 45 ACP
« Reply #7 on: October 09, 2018, 07:06:25 PM »
NO.