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April 9, 2015
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Went to the range yesterday to shoot the 10" Barrel .357 Super Mag. I did not have any reloads worked up so I figured I would shoot some of the Jamison factory Ammo that I recently purchased. As I had mentioned in an earlier range report. This Ammo will simply not fire when shooting double action but most of the time it shoots when I fire single action.
However, the light primer strikes pale in comparison to what I consider a major issue of 3 overpressured rounds or weak brass as evidenced by the 3 split cases and difficult ejection I experienced. I have contacted Jamison Ammo and informed them of this issue. BUt in the mean time, be careful if you are shooting Jamison Ammo in your Dan Wesson or any other firearm.
“We cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.”
-Henry David Thoreau
“When some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes – remembering that it was
one of the best parts of my education – *make* them hunters.”
-Henry David Thoreau
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Dans Club
February 22, 2009
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Unfortunately, that's not uncommon for old stock Jamison Brass. It's not overpressure but bad brass. Probably not drawn or annealed correctly.
If you purchased from a local gun store, I'd take it back and ask for a refund. Then let the LGS deal with Jamison.
In the meantime, order a few boxes from Mike Bellm to tide you over.
Technically, the glass is always full; half liquid, half air....
DWF Supporters
April 9, 2015
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This is the reply from Jamison Ammo aka "Captech International"...I am certainly satisfied with their response. I will ship the Unused and shot up ammo tomorrow via UPS on their account and looks like they will somehow refund. Gotta love products made in America and Americans providing other Americans with customer service/satisfaction. .
Mr. ++PABOWHUNTER,
First I would like to reassure you that the ammunition is loaded below the SAAMI established 48000 CUP. We have had a few issues due to variations from chamber to chamber. We are in the process of tweaking draw design and dimensions to alleviate this issue. New redesigned brass is expected to be finished in the next 5-6 weeks. New production ammo will follow.
“We cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.”
-Henry David Thoreau
“When some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes – remembering that it was
one of the best parts of my education – *make* them hunters.”
-Henry David Thoreau
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Moderators
Dans Club
February 22, 2009
Offline
Technically, the glass is always full; half liquid, half air....
February 16, 2016
Online
I notice that those are 158-gr. bullets. I thought we were supposed to stay above 170-gr. to prevent topstrap flame-cutting issues?
DWF Supporters
April 9, 2015
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When I reload for 357 Max I do use the 180 grain bullets. I think the top strap flame cutting issue you were asking about occurred when using even lighter bullets like the 125 grain bullets. (This would all be just from things I have read and absolutely zero first hand knowledge) I do know that the older Remington Factory Ammo I have for 357 Max was also 158 grain bullets. You can find I am sure plenty of reading on the flame cutting top strap issue just by doing some searches, you could also maybe search about the discontinued Ruger Blackhawk in 357 Max.
“We cannot but pity the boy who has never fired a gun; he is no more
humane, while his education has been sadly neglected.”
-Henry David Thoreau
“When some of my friends have asked me anxiously about their boys, whether
they should let them hunt, I have answered, yes – remembering that it was
one of the best parts of my education – *make* them hunters.”
-Henry David Thoreau
February 16, 2016
Online
Sounds like a fun topic to research, since I have both a 40 & 740 and reload, it just makes sense.
Apparently, it is a combination of factors, such as muzzle velocity. The lighter bullets of 110 and 125 grains, pushed over 2,000 ft. sec. were the worst offenders and do the most damage.
158-gr. at your velocities is probably fine.
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