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Old August 12, 2014, 08:22 PM   #1
chief99
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Bullseye load for 40 cal. plated

Loading 140 gn Missouri lead bullet in 40 cal. Was using 4.4 gns of bulleye but recoil was really snappy. Reduced the load to 4.2 and greatly reduced recoil, I like this load . Also load 40 cal . 165 grain plated bullets and will soon have to start using bullseye for those. My manuals does not have a load for this bullet using bullseye . They do have a load for jacketed or XTP's. Speer, Lyman and Lee are close on these numbers. Start 5.1 to 5.8 . So for plated should I start under the started load for jacketed or XTP's . Again using bullseye . Hope this makes sense.
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Old August 12, 2014, 09:53 PM   #2
bds
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Disclaimer: This post lists loads not currently published by Alliant. Use them at your own risk.


2004 Alliant load data has loads for 155 gr and 180 gr lead bullets. You can reference load data for slightly heavier bullet which lists 4.9 gr as max charge for 155 gr bullet and 4.5 gr for 180 gr bullet at 1.125" OAL - http://www.thehighroad.org/attachmen...7&d=1364769070

But since GSSF doesn't have power factor requirement, I would load as light as it will still reliably cycle the slide and still produce accuracy. So for the 140 gr lead bullet, I would test even lower powder charges like 4.0 and 3.8 gr. For the 165 gr plated bullet, you could try 4.0 gr as start charge and test 4.2 and 4.6 gr at the same OAL (If 4.0 gr cycles the slide, I would try even lower powder charges).

Bullseye has produced snappier recoil loads in 9mm and 40S&W for me and while I don't mind the snappy recoil of 9mm loads, I prefer not to use Bullseye for 40S&W. I would suggest slower than W231/HP-38 powder but during current shortage, if Bullseye is all you can get, Bullseye it is. And FWIW, I tested Herco with 180 gr Berry's plated and MBC lead bullets and got surprisingly accurate loads with 6.1 gr and longer than SAAMI max OAL shot with Lone Wolf barrel without leading. Even when shot with factory Glock barrel, accuracy was good without leading. Perhaps for the 165 gr plated bullet, you can test 6.1 and 6.4 gr? - http://www.thehighroad.org/showthread.php?t=743416
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Last edited by bds; August 12, 2014 at 10:17 PM.
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Old August 12, 2014, 09:56 PM   #3
Mad Chemist
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Are you looking for reduced recoil?

If so, I'd go with the starting jacketed load at 5.1 and work down in increments of .1gr until either accuracy or reliability begins to degrade. Once you reach that point, bump up the charge .1gr and load a larger test batch. If they are accurate and reliable, retain that charge as your practice load.
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Old August 12, 2014, 09:59 PM   #4
bds
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Duplicate.
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Last edited by bds; August 12, 2014 at 10:18 PM.
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