Getting closer to loading 9 and just curious what guys are using for alloy. I'd assume I don't need anything special as my soft cast coated bullets in 300bo fly fine on F/A with no problems.
Im using like 98/1/1 approximately. Maybe even more pure.
Getting closer to loading 9 and just curious what guys are using for alloy. I'd assume I don't need anything special as my soft cast coated bullets in 300bo fly fine on F/A with no problems.
Im using like 98/1/1 approximately. Maybe even more pure.
A common problem with reloading for 9mmP is that the brass can/will squeeze down the size of the CB when seated if not expanded properly. Standard expanders don't open up the brass enough for CB's. You may not get leading but accuracy will suffer if the projectiles are undersized when fired.
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Ww with 2% SN will do it, in my opinion only! I powder coat them, and have no leading problems at all. My .02 cents.
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When I load for the 9mm I use the expander plug for the 38/357 and then flare with the 9mm expander.
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I run an alloy a touch harder than ww's.
I use it for naked and for slick sided P/C boolits.
powder coat is not a jacket and the same fitment rules apply, you can get away with a bit softer alloy because of the coating but you can't go all crazy.
The softest I use with my 9's is a 1.5/1.5/97 air cooled they run around a 9-10 BHN normally.
I can use them either conventional lubed or PC'ed bit I can't push them too hard. I mainly just use these for plinking.
I have a touch harder alloy at around a 2/2/96 that I can run up to the upper end loads. I size all of them to .357".
Later,
Mike / TX
That sounds reasonable. However i must say the PC has protected my 10" AR barrel well pushing 150gr boolits 1800fps and they must not be that hard as it's same alloy. I mean, with powder coating what will happen if the host is too soft? It's still got the barrier coat on it.
I appreciate the recipes that include WW alloys but I'm kinda wondering how you can still have any WW because they just flat don't exist around here anymore. I got my first and only tire shop bucket score and it turns out it was about 10% or less useful material. Probably more like 5%. Definitely not worth it.
make a pseudo mix.
pure lead and lino or lead and super hard.
you can water drop or oven quench the alloy you have.
oven quenching would get you up near 14-15 bhn.
if you get things wrong you get leading same as non coated.
i know I've read debates but doesn't the powder coating remove the tempering that the water drop gives? They need 400° or so to cook. I still do water drop all my boolits to prevent damage to them though.
One of my future machines will be an auto powder coating machine that water drops them again maybe.
not really since you quench the entire boolit. [from the mold or the oven]
20 minutes PC cook time isn't enough time to get to the center of the boolit and let the antimony matrix re-set itself.
you might slightly affect the immediate area under the PC [shrug] but it's not gonna mess up your hardness.
I dump mine from the oven into the same pot I water drop in anyway so it becomes a wash at that point.
I shoot mostly range scrap in all my service handgun loads. I do water quench after baking the PC. It seems to add about 5bhn vs air cooled. The 9mm & sometimes 40 seem to like a bit harder alloy than say 45acp.
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Gotta disagree with you again on that one. The powder coating process absolutely will negate the effect of water dropping for hardness. Run a hardness test to compare, the evidence is plain. Someone even just recently posted their results showing this.
Drew P, if you want to quench for hardness, pour water on the bullets when they come out of the powder coating oven. 400* is plenty hot enough for heat treating.
Just a tip - pour water on the bullets, not bullets into the water. When they are hot, the coating is still soft, so if you dump the hot bullets in the water, the coating can get torn off in places where bullets stuck to each other or the tray.
I second the comments about using WW alloy equivalent or slightly harder for 9mm. You can go softer without leading, but it doesn't improve accuracy or consistency. Personally I use straight clip on WW alloy for everything from 170gr FN or 125gr HP subsonic loads to light 100gr +P+ fast loads up to ~1800 fps. I don't normally bother quenching any of my 9mm bullets; have tried it several times but never found a significant benefit unless trying to tailor a bullet for a specific impact velocity.
Good to know. Yes quenching the freshly pc bullets will mean a change in my system. I usually let them cool in the broaster.
What temp must the lead get to for heat treating if it were done as yet another step after pc cures?
If I could pile them up and heat to 300° for instance I don't think the coating would mind.
yondering I know we have gone over this...
I thought initially it would be affecting the alloy also.
after going over this with Glen Fryxell more than once. he has convinced me to come around to his point of view on the matter.
he has the metallurgist degree, I got nuthin, so I defer to what he is telling me.
300 would make a change but you need to heat soak them for a full hour.
dropping straight from the mold would get you to 375-400 easy enough.
I've found that under the right conditions almost pure lead will work in 9mm bullets. I just got a Lee 6 holer 158/.358 bullet mold with a round nose and it is seriously accurate in my 357's/38's. but it seem to be quite accurate with my CZ champion, A CZ 75B, a Tanfolio, a star model 30 and a Bersa thunder 9. they come out of the mold at 161 gr.s and 2.8-3 gr's of clean shot(pretty new powder, very fast). this load will work the action of the above pistols. this is a tumble lube bullet. I've found that 9mm lead bullets need to be between about 750 to not over 900 FPS MV. mostly just fast enough to work the action of a semi auto pistol.(ok, it's really nice when the fired case drops at your feet or on the table that your shooting from.) I'm still working with this load and yes, with a 161gr. bullet theres not much room left for powder in a 9mm case. but this is not a compressed load.(ok, there's not any air space either). I shoot a "plate" rack and these will knock down the plates just fine(that's 3/4" -8" dia. plate at 10 yards)
I tried the Lee 124gr's mold and the mold works just fine(good bullets for a .38 special) but I can't make them work in a 9mm automatic (not accurate and will not work the action.) I also have two other molds that pour a 151/153 gr' bullets and they kinda work the action but there is a lot of key holing. I also have a round nose mold that's pretty accurate, but the sides of the bullet shear off and leave a ring of lead in the chamber and the second round will not chamber. (maybe I could resize it.) but it's only a two hold mold. what I'm seeing is the bullet needs to be heavy enough to work the action but has to stay about 8-900 FPS. "O" using Alox or Xlox white lube on lubing the bullets. "O" ,,note number 2. I miked all the barrels and all but one mike at .356, the Bersa thunder mikes at .355(I had my Starett rebuilt at the factory last year and I have gage blocks to check it.)
Guess I've just been lucky.
I don't have the problems others seem to have with 9mm
I cast from 50/50 air cooled and powder coat. Final size .357
Lee dies and Win or •FC• brass only. No issues at all.
Just recently finished another 3k 9mm's as well as some 40 & 45.
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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" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |