Looking for CFE 223 load data for 6mm Rem
- Thread starter Brians356
- Start date
I don't have any 6 Rem data. I have, however, monkeyed around a fair bit with CFE 223 in various cartridges. Be wary of the stuff, it works great in the cartridges it was intended for. Extrapolating to other cartridges can get you into trouble- I know. In 6BR or 6 Dasher it's very peaky. Also, a lot of Hodgson's book loads for CFE are way hot, I've found.
Brians356
Silver $$ Contributor
jhord said:
Thanks. Not to worry, I'm not going for velocity. I need a starting load only, I want to fire-lap a barrel using CFE to minimize copper fouling. But here's the kicker - the bullets are 107-gr Sierras. Yes, very heavy, but Sierra has published IMR 3031 data for a 107-gr bullet, and 3031 is quite a bit faster than CFE. I figure about 32-33 grains of CFE will be ok at about 2700 fps, but still looking for some actual data. I'm interested in other, lighter bullets as well with CFE (for actual hunting) in 6mm Rem, which is why I didn't specify a particular bullet.
Brian
Brians356
Silver $$ Contributor
Update:
I do not believe there are yet any published data for CFE 223 in 6mm Rem., nor are any informally published on a bullet or powder maker's web site. Since Hodgdon publishes data for both 243 Win and 243 WSSM, I believe only business-related factors will preclude 6mm Rem data from eventually being developed and published. (And in the 2014 Hodgdon annual load periodical, they omitted 243 WSSM entirely, which indicates selectivity is certainly in play. There have simply been too many cartridges and powders introduced in recent years for some vendors to stay abreast in load development. A chap from Sierra told me on the phone last week the reason they have not completed a new load manual since 2003 - they simply cannot divert the resources from production QA what with the huge demand for product.)
However, a chap on another forum was kind enough to provide data from an internal ballistics modeling program which indicates I was right on the money at ~33 grains CFE 223 behind a 107-gr bullet as a starting load.
I do not believe there are yet any published data for CFE 223 in 6mm Rem., nor are any informally published on a bullet or powder maker's web site. Since Hodgdon publishes data for both 243 Win and 243 WSSM, I believe only business-related factors will preclude 6mm Rem data from eventually being developed and published. (And in the 2014 Hodgdon annual load periodical, they omitted 243 WSSM entirely, which indicates selectivity is certainly in play. There have simply been too many cartridges and powders introduced in recent years for some vendors to stay abreast in load development. A chap from Sierra told me on the phone last week the reason they have not completed a new load manual since 2003 - they simply cannot divert the resources from production QA what with the huge demand for product.)
However, a chap on another forum was kind enough to provide data from an internal ballistics modeling program which indicates I was right on the money at ~33 grains CFE 223 behind a 107-gr bullet as a starting load.
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