I'm just curious - have no plans or need to do it. But for example would sizing the MP 360640 (130gr) plain base bullet down to .355 for 9mm loads be acceptable in the long run.
I'm just curious - have no plans or need to do it. But for example would sizing the MP 360640 (130gr) plain base bullet down to .355 for 9mm loads be acceptable in the long run.
I wouldn't take them down to .355. All my nines work best with .357, but answer your question, If you are powder coating and have a strong press it would be easy to do. I put a .358 pc'd bullet through a .312 die the other day by accident and the thing got longer but was otherwise fine.
NRA Benefactor Member NRA Golden Eagle
acceptable, as for sizing purposes, YES.
acceptable for your 9mm gun, probably not.
~~~~~~~~~~~~~~
“If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
― The Dalai Lama, Seattle Times, May 2001
most definitely , I size down many .360 bullets to.355 soI can paper patch them to .362 .
That bullet looks very similar to 357125MP that I use in 9mm and 38 special. Experiment with 357 and 358 sizing to find what your 9mm likes best.
Lyman said, sizing down more theN .003" will hurt accuracy, in their FAQ.
I just reamed a Lee 44 mag mold that was dropping .429 to .436 and bought a .432 sizer and beveled the top to keep from shaving lead. Works fine --My throats were .432 and improve the grouping a lot. My Lyman cast book shows .358 for 9mm.
Last edited by 45DUDE; 03-12-2023 at 01:25 PM.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
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