Palladan44
Member
- Joined
- Nov 7, 2020
- Messages
- 1,904
Ok.. Dillon 550B, factory dies, 9mm Luger...
(Not talking about bulging on once fired brass near case head from unsupported chamber, but the bullet bulging out the brass slightly more on one side than the other)
Certain Bullets may be slightly larger than others and thus will have more "case tension" and show the "bulge" through the brass. I dont mind it at all... if its symmetrical all the way around. But often it is not. Often the bullet bulges on one side of the case more than the other.. In rare cases the cartridge will be assymetrical enough to go into the chamber sticky. But, 99.9% of them are still in spec. and they function fine. Some of you may say "well what are you worried about then"???.. Well im a bit of a perfectionist, and this assymetrical bulge is annoying me...
Ive uses both the flat and round orphose of the seater stem with the same result. Ive used different amounts of belling with same result. Ive used different lock rings, and always raise the platform on the case to adjust as directed. Same results. Ive shimmed the toolhead to close the small gap between the machine and the toolhead with the same result. Its kind of annoying, as Im kind of a perfectionist with my reloading and feel ive perfected everything with these loads. I just cant get over the assymetry it really bugs me!!!
My next step is to get different resizing die, one which may size to slightly larger specs, and possibly have slightky less case tension.
Also, I may try new toolhead and seating die.
I cant get over how this happens with 9mm, but have no problems with 38 special, 357 Mag, 44 mag or 10mm. Just this 9mm giving me this problem with Winchester 147 Jacketed. And Zero 125gr jacketed bullets.
One last thought is this... if the once fired brass im using has the Glock bulge, or was fired in another gun with an unsupported chamber on the bottom, often the brass can be bulged on one side near the case head (you all know this already) I know some are fans of bulge busting 40s&w and 10mm, but I kind of think that because 9mm is a parabolic case, that there is no bulge busting or push through resizing 9mm, is that correct? All im doing is resizing on standard Dillon die.... Is there a chance that the brass is still slightly Assymetrical and the seating is thrown off due to the slight deformation of the once fired brass?
Help on this mystery would be greatly appreciated. (As you can see in this image, there is a greater protrusion on the right side of the case than the left)
(Not talking about bulging on once fired brass near case head from unsupported chamber, but the bullet bulging out the brass slightly more on one side than the other)
Certain Bullets may be slightly larger than others and thus will have more "case tension" and show the "bulge" through the brass. I dont mind it at all... if its symmetrical all the way around. But often it is not. Often the bullet bulges on one side of the case more than the other.. In rare cases the cartridge will be assymetrical enough to go into the chamber sticky. But, 99.9% of them are still in spec. and they function fine. Some of you may say "well what are you worried about then"???.. Well im a bit of a perfectionist, and this assymetrical bulge is annoying me...
Ive uses both the flat and round orphose of the seater stem with the same result. Ive used different amounts of belling with same result. Ive used different lock rings, and always raise the platform on the case to adjust as directed. Same results. Ive shimmed the toolhead to close the small gap between the machine and the toolhead with the same result. Its kind of annoying, as Im kind of a perfectionist with my reloading and feel ive perfected everything with these loads. I just cant get over the assymetry it really bugs me!!!
My next step is to get different resizing die, one which may size to slightly larger specs, and possibly have slightky less case tension.
Also, I may try new toolhead and seating die.
I cant get over how this happens with 9mm, but have no problems with 38 special, 357 Mag, 44 mag or 10mm. Just this 9mm giving me this problem with Winchester 147 Jacketed. And Zero 125gr jacketed bullets.
One last thought is this... if the once fired brass im using has the Glock bulge, or was fired in another gun with an unsupported chamber on the bottom, often the brass can be bulged on one side near the case head (you all know this already) I know some are fans of bulge busting 40s&w and 10mm, but I kind of think that because 9mm is a parabolic case, that there is no bulge busting or push through resizing 9mm, is that correct? All im doing is resizing on standard Dillon die.... Is there a chance that the brass is still slightly Assymetrical and the seating is thrown off due to the slight deformation of the once fired brass?
Help on this mystery would be greatly appreciated. (As you can see in this image, there is a greater protrusion on the right side of the case than the left)