IMO it has more to do with the magazine it must fit into. I load my .40's long for my 1911 @ 1.180'' and therefor they will not fit my buddies .40 Beretta mags which more or less are designed for the actual .40 length of 1.130''. But even if they did fit, they wont chamber anyway as the length is to long.
COL on 9mm?
- Thread starter greywolf67nt
- Start date
IMO it has more to do with the magazine it must fit into. I load my .40's long for my 1911 @ 1.180'' and therefor they will not fit my buddies .40 Beretta mags which more or less are designed for the actual .40 length of 1.130''. But even if they did fit, they wont chamber anyway as the length is to long.
Bullet length and design, specifically the bullet Olgive are the two defining issues. Given the same weight of bullet of course, a bullet with a narrow or slim olgive will be longer than a stubbier design. A slim olgive will enter the barrels' rifling before hitting the end of the leade eg Lyman's 356402 truncated cone design. A fatter bullet though shorter may impact the rifling and not allow the cartridge to seat in the chamber. Loaded long enough cartridges can exceed the magazines length, not allowing them to be loaded in the mag, Either way, you are no further ahead when the cartridge is long for the chamber but loadable in the mag, than being able to chamber the round but not be able to load in the magazine.
The simple solution is contained in my previous post.
Personally I have found no advantage in accuracy shooting IPSC/IDPA loading the 9MM cartridge long. Get it just a tad to long and your shooting for the day is over. Guys requiring the maximum volume for the 9MM to be able to stuff enough powder to make major are up against a different problem, one I don't face shooting minor.
To the OP if all you have to do is make minor power factor load your 125 gr bullets out to 1.1" and you will be good to go.
Take Care
Bob
I just reloaded 30 to test a new cast load.
The issue with cast bullet loads (wheel weights), I need to size at 357.
So, I need a 38 expander for my cases so the bullet is not swaged down.
So, I need to crimp quite a bit to bring that case back to a width that fits the chamber with thicker brass. Thinner brass fits no matter what, but the thicker cases need more crimp to plunk.
Well, they "look" crimped, but they were expanded more than usual, so technically the mouth is not crimped, it's the body that is expanded... oh well.
It's in the crimp groove of my bullet anyway so it's not damaging the bullet, and there is still enough brass all around to headspace.
lee 125RF sized 357, 3.9 HP38, 1.040, crimp to plunk with the thicker cases.
The issue with cast bullet loads (wheel weights), I need to size at 357.
So, I need a 38 expander for my cases so the bullet is not swaged down.
So, I need to crimp quite a bit to bring that case back to a width that fits the chamber with thicker brass. Thinner brass fits no matter what, but the thicker cases need more crimp to plunk.
Well, they "look" crimped, but they were expanded more than usual, so technically the mouth is not crimped, it's the body that is expanded... oh well.
It's in the crimp groove of my bullet anyway so it's not damaging the bullet, and there is still enough brass all around to headspace.
lee 125RF sized 357, 3.9 HP38, 1.040, crimp to plunk with the thicker cases.
Kryogen I size my 9MM bullets .357 as you do but have never worried about the bullets swagging down. I just use the Dillon resizing die that came with the die. I think you are over thinking the process. The 9MM as you know only requires a taper crimp. All this amounts to is straitening out the case at the mouth effectively eliminating the belling you applied to the case mouth. Friction from the case will hold the lead bullet in place. I don't see a need to expand the case beyond what you would do for a jacketed bullet. After thousands of rounds I have yet to see how accuracy has been degraded by any swagging down of the lead bullet cast from WW. I do water quench mine from the mold to add hardness. Too, you got to drop the bullets somewhere and a pail of water is as good a place as any.
Take Care
Bob
Take Care
Bob
Everything I have tried with my OEM glock barrel has leaded some (wheelweights).
I'm now trying loads with a new rifled barrel from Wilson combat, seems much better. 358 was too large, trying 357 now.
Seating a 357 ww bullet in a case expanded for 355 jacketed bullets usually swages it down to 356 which is not enough to prevent leading(and tumbling) in my barrel.
I'll see how well it works with the Wilson combat barrel, and then I might be able to start doing some experiments to make the process simpler once I have a load that never leads.
I have 1000 posts on cast boolits if you want to read about it. But I think you are on cast boolits also?
Thanks
I'm now trying loads with a new rifled barrel from Wilson combat, seems much better. 358 was too large, trying 357 now.
Seating a 357 ww bullet in a case expanded for 355 jacketed bullets usually swages it down to 356 which is not enough to prevent leading(and tumbling) in my barrel.
I'll see how well it works with the Wilson combat barrel, and then I might be able to start doing some experiments to make the process simpler once I have a load that never leads.
I have 1000 posts on cast boolits if you want to read about it. But I think you are on cast boolits also?
Thanks
What are using for lube? Yup on the Cast Bullet Forum. We had our fun trying to get the Hi Tek to work using WW alloy in the 9MM. I have all but given up on it for 9MM amd really is hardly worth the effort for my 38spl and 45acp where I have had reasonably good luck with it.
Take Care
Bob
Take Care
Bob
Hitek didnt work for me so far, but i had the oem barrel and never found a load that did not lead even with lube.
Powdercoat seems ok but its a lot of work.
Right now i use yellow dragon but I might order some bac from the us if it works.
Or, i might try hitek again if those 357 bullets stop leading in the rifled barrel.
pc is nice but its really just too much work for mass production 9mm.
The issue with hitek is that it softens the bullets.... And softened wheelweights lead in 9mm...
The aussies buy premium lead alloy that is much harder and better for bullets. But it costs as much as plated bullets...
Didnt have much time in the last year with my business and baby.
Powdercoat seems ok but its a lot of work.
Right now i use yellow dragon but I might order some bac from the us if it works.
Or, i might try hitek again if those 357 bullets stop leading in the rifled barrel.
pc is nice but its really just too much work for mass production 9mm.
The issue with hitek is that it softens the bullets.... And softened wheelweights lead in 9mm...
The aussies buy premium lead alloy that is much harder and better for bullets. But it costs as much as plated bullets...
Didnt have much time in the last year with my business and baby.
Try a soft lube. I use xlox 2500 plus. I have done so for the pasr five years when I wasn't using Felix Lube. www.LaStuff.com. They shi[p to Canada.
If you have a desire to make your own try Felix Lube. Best lube I have found. Felix Robins was a very good friend of mine who passed away a couple of years ago. Do some searches using his name on the Cast Bullet Forum and you will be blessed with a fountain of excellent information on casting and cast bullets.
Take Care
Bob
If you have a desire to make your own try Felix Lube. Best lube I have found. Felix Robins was a very good friend of mine who passed away a couple of years ago. Do some searches using his name on the Cast Bullet Forum and you will be blessed with a fountain of excellent information on casting and cast bullets.
Take Care
Bob
I'm just back from the range, where I shot 50 rounds each of 2 batches that were identical except for the OAL.
Case: IMI 9mm fired once
Primer: CCI 550
Powder: CFE Pistol, 5.9gr
Bullet: CamPro 115gr FCP RN
One batch was made at 1.120" OAL, the other at 1.150" OAL.
The difference is not major, but the longer OAL seemed to make slightly tighter groups for me. One of them came to about 3MOA (just a tad over an inch at 38m) from a 10 rounds group.
Case: IMI 9mm fired once
Primer: CCI 550
Powder: CFE Pistol, 5.9gr
Bullet: CamPro 115gr FCP RN
One batch was made at 1.120" OAL, the other at 1.150" OAL.
The difference is not major, but the longer OAL seemed to make slightly tighter groups for me. One of them came to about 3MOA (just a tad over an inch at 38m) from a 10 rounds group.
