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Model P Magnum bolt face
Posted: Wed Apr 03, 2013 2:12 pm
by aaronraad
The new Barnard finally arrived.
I thought I'd take a photo of it before I disfigure it. Just to the left is the new case she is made to hold.
Posted: Wed Apr 03, 2013 7:28 pm
by DannyS
I like the Olivetti type writer, do you have it connected to your pc
Posted: Thu Apr 04, 2013 4:33 pm
by RDavies
What case is that, I cant make it out?
Posted: Thu Apr 04, 2013 5:04 pm
by aaronraad
DannyS wrote:I like the Olivetti type writer, do you have it connected to your pc
Couldn't get to work with the PC, but it works a treat on a touchscreen tablet!
Posted: Thu Apr 04, 2013 7:19 pm
by aaronraad
RDavies wrote:What case is that, I cant make it out?
Good one Rod, pick out the most important part of the project in the photo! The other critical item is back with the die maker.
The cartridge designer missed the chance to see the cartridge fired, so all the performace aspects are purely calculated estimates. I want to get it right before publishing anything.
It has inspired my 8mm design for later this year/early next year, which I hope to register under the same proprietary name used by the cartridge designer.
Posted: Thu Apr 04, 2013 8:23 pm
by AlanF
My measurements suggest a shortened 338 Lap case and and .270 (???) cal. Or maybe 7mm with a turned neck?
Alan
Posted: Thu Apr 04, 2013 11:14 pm
by aaronraad
AlanF wrote:My measurements suggest a shortened 338 Lap case and and .270 (???) cal. Or maybe 7mm with a turned neck?
Alan
Close, you have ot allow for a bit of parallax.
Posted: Fri Apr 05, 2013 6:56 am
by macguru
I think its a shortened 30-338 lapua, which is a good thing because the full case is a barrel burning monster
Posted: Fri Apr 05, 2013 7:38 am
by AlanF
On the photo, the neck diameter measures approx 52% of the head diameter. The 338 Lap has a 0.578" head diameter. Calculating 52% of 0.578" is about 0.306". I'd expect a 30 cal to be at least .330" at the neck? If its not a 7mm then is it a 6.5mm before neck turning?
Alan
Posted: Fri Apr 05, 2013 7:49 am
by macguru
well then its a 7mm-338 in a shortened case ......
Posted: Wed Jul 31, 2013 12:07 pm
by Quick
Aaaron, Care to share what this new case is?
Posted: Wed Jul 31, 2013 1:24 pm
by aaronraad
25/60 SMc based on a WSM case.
Hopefully I can do the late By Smalley justice.
Posted: Wed Jul 31, 2013 4:05 pm
by Seddo
Thats what you are making the new 25cal projie for.
Posted: Wed Jul 31, 2013 4:21 pm
by aaronraad
Correct. The 1:8" barrel should be able to stabalise something long.
Posted: Wed Jul 31, 2013 7:42 pm
by RDavies
Have you thought about a 7mm version as well?
