Wanted 9mm Cast Hollow Point Load Data

[mycustom]

Hi! all,
Started casting 9mm hollow point bullets (Lyman #356637 HP mold)
Bullet after casting and powder coating and resizing to .356 are weighing 134 to 134.4 grains.
Hoping someone has a load data using VVN320 for a Glock 17 or 34.
I'm only able to load at approx. 1.065 OAL max.with this bullet design.
Looking to load on the light side for target shooting.
The Glock 34 gen4 is stock, the Glock 17 gen4 has a lighter recoil and firing pin spring.
Any help would be greatly appreciated.

[mycustom]

Any suggestions utilizing another powder?

[J-cat]

You undersized the bullet and it will lead like hell. People like WSF for 9mm with lead. I would use Lyman's 147gr data as your bullet is prolly the same length. 320 might be too bulky for that OAL.

I load 124 TC with 3.5grs of Bullseye at 1.040" OAL. It's very accurate but I use .358" 11BHN revolver bullets.

[mycustom]

J-cat, Thanks for the information.
I'm trying to find the new Lyman 9mm load data booklet, my local gun shop had all the other calipers, but the 9mm was sold out.
Will try calling Turners etc. to see if they have one in stock.

[Spaceghost]

J-cat, I am interested in your statement about undersizing the bullet to .356. I only load up FMJ's but am interested in casting. I was under the impression that .356 was the correct size cast bullets were sized to for 9mm application. Can you clarify for me please?

[thenodnarb]

J-cat, I am interested in your statement about undersizing the bullet to .356. I only load up FMJ's but am interested in casting. I was under the impression that .356 was the correct size cast bullets were sized to for 9mm application. Can you clarify for me please?

.357 for cast 9mm. .356 is for jacket bullets.

Always oversize the bullet by .001(sometimes .002 if its soft lead) when shooting cast. A bullet that is swaged into the barrel upon firing will fit better, seal against gas cutting, and generally reduce or eliminate leading.

[J-cat]

J-cat, I am interested in your statement about undersizing the bullet to .356. I only load up FMJ's but am interested in casting. I was under the impression that .356 was the correct size cast bullets were sized to for 9mm application. Can you clarify for me please?

.356" is not always the correct diameter for 9mm. It may be for one with a match barrel and match chamber, but not for a typical production gun where groove diameters run as loose as .358" and freebore/throat diameter .360". If you size your bullet to .356" it will not seal. Sizing for an auto is just like sizing for a revolver. You have to know the groove diameter and the freebore/throat diameter because that's where the gas cutting occurs. Remember that gas travels at 7000 FPS before the bullet even begins to move. You have to seal the throat.

In an auto the throat is always the same or larger than groove diameter. I have various 9s where I have to run .357"-.359" bullets. I don't get any leading that way.

[mycustom]

Would the powder coating of the lead cast bullet make a difference?
Wondering if I don't need to size them now.
Thanks for the info, still learning, just started casting and powder coating bullets with a Harbor Freight power coating gun, haven't loaded any yet.
I've been searching the internet for info too.

[ironhorse1]

Really fellas does anyone here actually read their manuals?

Jacketed bullets run .355". That's a fact!

Cast bullets at .356" are just fine unless you have an over sized barrel.

Now according to Lyman 45th addition the most common diameter is .354".

Lyman #45 lists some 158 grain cast loads so the data should be safe with a lighter bullet.

Bullseye start 3 grains max 3.5
Red dot 3 grains max 3.6
Unique 3.5 grains max 4.6

Check other sources for additional data.

irh

[ironhorse1]

Now for the real issue. Is it safe to shoot lead in a Glock?

I found the old thread and will post a link.

http://www.calguns.net/calgunforum/showthread.php?t=830272&highlight=polygonal+leading

irh

[mycustom]

Ironhorse1,thanks for the load data, I do have some Unique powder. Counting on the powder coating minimizing the leading, will have to shoot some of the reloads to find out.
By the way the Glock 17 has a Wolf barrel in it.

[J-cat]

Wolf has tight chamber throats. You won't have any leading with .356" bullets.

[mycustom]

Ordered a Lyman auto pistol reloading booklet off E-Bay, lets see if I get more data on this devastator hollow point bullet.

[rcschummers]

Careful loading lead for a glock, the octagonal barrel does not like lead!


"Right wrongs nobody"

[mycustom]

rcshummers, yes the Glock 34 has the stock barrel, thanks, I will be careful.
Has anyone shot cast bullets that have been powder coated, through a stock Glock barrel?