one piece of brass to those specs. I always measure case capacity first before deciding to go with it or dump it before I spend a lot more money.The case was a 41 mag slightly tapered down to 40 caliber. It had a 12 degree taper and the case capacity was not enough to go ahead with the design.
I dumped that idea and went with the 44 Mag case necked to 40 caliber as the case capacity was considerably more than it's nearest competitor. That became the 401 GNR. I always save my original drawings to compare any new ideas with the old stuff to see if it actually is worth doing. From the time I draw up the specs, send them to David Manson, have a rough cut reamer done, chamber a barrel or cylinder to the new cartridge, test it for any problems that might crop up, like backing out, bulging brass etc, get a new finisher reamer made, chamber a barrel or cylinder, get 3 fired cases made, send them to Hornady, and have 12 sets of dies made, I will have taken around 1 year of my life,and spent between $2500 and $3000. That is for each GNR or custom caliber we have. So figure $3000 times 70 custom cartridges and you have almost a quarter million dollars I have blown in the last 35 years on custom cartridges, and reason enough to have me sent to the funny farm.
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1911 10mm project....
- WB, 2020-01-08, 11:27
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Yours must be totally different than my 6"
- Gary Reeder, 2020-01-08, 11:55
- I’m not joking, 30# easy to pull slide. - WB, 2020-01-08, 12:40
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Got an email from Lee Precision today. The 10mm dies...
- Huey, 2020-01-08, 11:39
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You know there is also a lot of variation in
- WB, 2020-01-08, 11:52
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maybe this will help
- Gary Reeder, 2020-01-08, 12:21
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Very cool! Was that the .400 Special? (nm)
- WB, 2020-01-08, 12:39
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Do you actually have that reamer?
- WB, 2020-01-08, 13:12
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I dumped that idea 10 years ago after doing
- Gary Reeder, 2020-01-08, 14:14
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I remember you having 3-4, all at once, going too.
- WB, 2020-01-08, 15:29
- if you mean 3 or 4 series, when we moved - gary reeder, 2020-01-08, 20:14
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I remember you having 3-4, all at once, going too.
- WB, 2020-01-08, 15:29
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I dumped that idea 10 years ago after doing
- Gary Reeder, 2020-01-08, 14:14
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Do you actually have that reamer?
- WB, 2020-01-08, 13:12
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Very cool! Was that the .400 Special? (nm)
- WB, 2020-01-08, 12:39
- Of course, I'm doing this for the 38-40s... - Huey, 2020-01-08, 12:16
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maybe this will help
- Gary Reeder, 2020-01-08, 12:21
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You know there is also a lot of variation in
- WB, 2020-01-08, 11:52
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Yours must be totally different than my 6"
- Gary Reeder, 2020-01-08, 11:55