I find I can get by with about 60 gr. of burn in a 12-14" handgun barrel. Some slow powders actually still give faster speeds. Adding bullet weight does improve efficiency some, within reason.
My .375 Win. FA2008 would only do about 2000 fps with the 15" and a 230 gr. JSP. That's what I took to AK. A cast bullet would do more, and the .400's straight sides holds notably more powder. I re-chambered the FA to .378 GNR and burn that 60 gr. to push a 260 gr. Nosler at 2300+, with a shortened 12"+2" brake, current barrel.
Not that it helps but you should be able to shoot .401 Herter's through the .400 GNR. LOL The only difference other than length is a little bit of rim diameter, 0.475" vs 0.495".
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The .400 GNR sounds so intriguing to me
- WB, 2018-01-26, 13:29
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Straightwall extraction
- Leadhound, 2018-01-26, 17:17
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no, it was developed for lever guns. It is a 30-30 case
- Gary Reeder, 2018-01-26, 17:32
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What models
- Leadhound, 2018-01-27, 06:04
- either of those will work fine. (nm) - Gary Reeder, 2018-01-27, 15:57
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What models
- Leadhound, 2018-01-27, 06:04
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no, it was developed for lever guns. It is a 30-30 case
- Gary Reeder, 2018-01-26, 17:32
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From a 12” barrel.....
- Zach, 2018-01-26, 15:40
- It's basically a 25 gr. vs 40 gr. capacity - WB, 2018-01-26, 15:52
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I am right there with you,though I have a Marlin 36 waiting
- JPL, 2018-01-26, 15:27
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The Marlin is probably a better platform
- WB, 2018-01-26, 15:59
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That 400
- Kantos Krieg, 2018-01-26, 16:28
- FWIW, .38-40 dies will reload it fine as will .40/10mm - WB, 2018-01-26, 17:41
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That 400
- Kantos Krieg, 2018-01-26, 16:28
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The Marlin is probably a better platform
- WB, 2018-01-26, 15:59
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Straightwall extraction
- Leadhound, 2018-01-26, 17:17