Mark_Mark
Member
- Joined
- Jan 9, 2021
- Messages
- 17,992
close enough for government workNot exactly the same case. The neck will be shorter if you use a .40 case for 357sig, and neck tension is something you need to watch when loading 357sig.
close enough for government workNot exactly the same case. The neck will be shorter if you use a .40 case for 357sig, and neck tension is something you need to watch when loading 357sig.
Not exactly the same case. The neck will be shorter if you use a .40 case for 357sig, and neck tension is something you need to watch when loading 357sig.
.357's formed from .40 will be a good bit shorter.you know that .40 can become a .357 Sig very easily
same case too... my next project
I noticed how short the neck was! you suggested loading the longer bullets? 147gn?.357's formed from .40 will be a good bit shorter.
I formed 1000's 20+ years ago, but if you can get the proper brass, don't reform .40's.
The Sig neck is already ridiculously short, going shorter increases the chances of bullet setback and skyrocketing pressures.
Good deal. I’m presuming these were TG and WSF? Any qualitative statements for the different powders? I started with TG and .40 and it was an acceptable combination but ended up shooting a lot of WST in .40. Just in case you see an opportunity to obtain some - and it works in other calibers as well. I stepped in 9mm quicksand so I haven’t shot .40 in a while but recently obtained a limited gun and now have to develop loads for that. Good luck!Just got back from test firing them all. everything worked. I didnt have a target as the wind made it moot. But I've shot my pistol enough to know that they were seemingly fairly straight shooting. Will analyze the cases later, have to run errands now though
But a difference a newbie, or at least a newbie to .357 Sig, should be aware of.close enough for government work
Good deal. I’m presuming these were TG and WSF? Any qualitative statements for the different powders? I started with TG and .40 and it was an acceptable combination but ended up shooting a lot of WST in .40. Just in case you see an opportunity to obtain some - and it works in other calibers as well. I stepped in 9mm quicksand so I haven’t shot .40 in a while but recently obtained a limited gun and now have to develop loads for that. Good luck!
I've never actually done it, but my assumption is that 10mm would be a better donor case than .40 since you'd have a full length case neck.If a guy was to trim and form a 10mm case, would that work, even with the lg primer pocket....?.....I don't know if .357 SIG is lg or sm primer....
I've never actually done it, but my assumption is that 10mm would be a better donor case than .40 since you'd have a full length case neck.
But to me it'd make a lot more sense to just offer a trade in the "Buy, Sell and Trade: Reloading Components and Gear" forum, your 10mm for .357 Sig.
I went with WSF in all of them. It seemed to burn cleaner less sooty than the CFEP I was using with the 9mm loads.