Search found 1657 matches

by mtngun
Fri Jun 14, 2019 5:47 am
Forum: General
Topic: As if 40 - 41 gas checks were not confusing enough
Replies: 0
Views: 36

As if 40 - 41 gas checks were not confusing enough

There is no governing body that enforces standards for gas checks, so we end up with total chaos. :lol: In the old days Lyman sold a slip-on "41" check for the 41 magnum. It was too thin to crimp on and nobody liked it. It required its own shank diameter, about 0.397", that was not compatible with a...
by mtngun
Tue Jun 11, 2019 8:56 am
Forum: General
Topic: 350 Legend Chamber
Replies: 4
Views: 469

Re: 350 Legend Chamber

Thanks for the info, CW.

I have a hard time wrapping my head around headspacing on the case mouth. I suppose it's no different than many pistol cartridges.
by mtngun
Sun May 19, 2019 6:55 pm
Forum: General
Topic: Let's see those cast bullet hunting pictures !
Replies: 5
Views: 9451

Re: Let's see those cast bullet hunting pictures !

Photos fixed ... until the next time a hosting service screws them up!
by mtngun
Sun May 19, 2019 8:08 am
Forum: General
Topic: Let's see those cast bullet hunting pictures !
Replies: 5
Views: 9451

Re: Let's see those cast bullet hunting pictures !

Some of the photo links have stopped working so I'm bumping this up to remind myself to fix the photos. :lol:
by mtngun
Mon Apr 22, 2019 12:06 pm
Forum: lever actions
Topic: Marlin 44 mag microgroove
Replies: 0
Views: 187

Marlin 44 mag microgroove

From Ron P. Finally got out to spend a little range time with the rifle and some loads I made up with bullets cast from the .44 mold you made for my Marlin 1894. The target shown in the file attached was shot at 50 yards. The stuff off to the left is my attempts at herding them around to get them wh...
by mtngun
Thu Apr 04, 2019 5:10 am
Forum: design & sizing
Topic: I keep getting an inside-out bullet with the design program
Replies: 4
Views: 1810

Re: I keep getting an inside-out bullet with the design program

A smooth option has been added to the design program, as long as the bullet has a crimp -- and I can eliminate the crimp if you include a note. For 45 caliber you have the Hornady 45 pistol check, which contrary to what Hornady claims was designed for the .452 pistol not a .460 rifle, and does not c...
by mtngun
Tue Mar 26, 2019 12:35 pm
Forum: design & sizing
Topic: Measuring BC's
Replies: 9
Views: 3934

Re: Measuring BC's

Received some BC data from Paul Pollard that was collected with a LabRadar. These are will cast spitzers, from memory his 6mm spitzer is about 77 gr. in lino. Chad shot the 300 Blackout with the MM 180 PB bullet, 25:1 alloy and breech seated. His cases weren’t all sealing well and the velocity was a...
by mtngun
Sat Mar 23, 2019 9:13 pm
Forum: General
Topic: Should we test for statistical significance?
Replies: 0
Views: 250

Should we test for statistical significance?

Using statistics for shooting data is a good thing, but there is a growing push back against using statistics to provide "yes or no" answers. Scientists Rise Up Against Statistical Significance We should never conclude there is ‘no difference’ or ‘no association’ just because a P value is larger tha...
by mtngun
Sun Feb 17, 2019 7:15 am
Forum: design & sizing
Topic: Design myths
Replies: 0
Views: 306

Design myths

There are many myths about selecting or designing cast bullets. In the internet age the newbie typically goes on an internet forum and asks the experts for advice. Except the "experts" are not really experts, and they give bad advice. That includes, but is not limited to, the CBA. "First thing, you ...
by mtngun
Fri Feb 15, 2019 8:53 am
Forum: General
Topic: 350 Legend Chamber
Replies: 4
Views: 469

350 Legend Chamber

I have no clue how this thing headspaces but setting that aside, it would appear to have a good throat so it may be a good candidate for cast bullets.
Image