Boolits to big?

[Okie73]

Okay so here's the deal. I have some 357mag loaded with .359 diameter boolits for a pistol I no longer have.
My new pistol which is a Blackhawk needs a .358 diameter boolit. Would it be safe to shoot the .359 in this gun or should I pull them down. The barrel slugs .357 and the throats slug at .358.

Thanks for any advice.

[gray wolf]

********The barrel slugs .357 and the throats slug at .358.***********
Your .359 slug will be sized down to .358 from the .358 throats and that will still give you .001 over bore size. If the barrel leads form to small a bullet
( it may not ) then you can open the throats .001 As long as the rounds will chamber without any resistance.

[Larry Gibson]

Size of the cast bullet is safe and not the real question. Is the load safe for the new revolver is the question. Whatisthe load?

Larry Gibson

[felix]

Would be safe... Because it is a heavy duty BlackHawk from the older days? Assuming here.... The load is using slow powders, or loaded medium with fast powders. ... felix

[MtGun44]

.359 in .358 throats is PERFECTLY SAFE as far as boolit diameter goes.

Whether the amount of powder is safe is not something that I can comment
on.

Bill

[Okie73]

New model BH. The load is Lyman 170 SWC over 14.5 grains of H110 and CCI 550.
Sorry I forgot to include that pertinent information. ;-)
These do drop in cylinder with no hesitation.

[gray wolf]

The black hawk is a reasonably safe pistol as to it's heft and strength.
If it were me and I was SURE my loads were not over book max, and they chamber like you say they do--I would shoot them. Lets see what the big guns have to say.

[rststeve]

Don't change a thing and let'm rip.

[MtGun44]

Just fine, I have run out past 16 gr with H110, not a book max, even then.

Bill

[williamwaco]

Yeah!

What they said!

Ditto!

I expect you will not notice any difference in performance between the .358 and .359 sizing.


.

[Okie73]

I learned a long time ago that when in doubt seek wise council.
Thank you very much Gents!!!

[Moonie]

Lots around here will tell you that if it chambers you are good. I shoot 125gr Lee Boolits in my Security Six as cast, this is around .360-.361. They chamber just fine in this pistol and they shoot very well. I size them to .358 for use in 9mm as I haven't found a 9mm yet that will let them chamber if left unsized.

I've seen it on here that your barrel is the best sizing die, if it fits it ships ;)

[GP100man]

If all is what you say it is & the chambers/throats are good , I bet they`ll give a good starting point !!

[Okie73]

Update
I finally made it to the range to shoot the rounds in question and they worked great! Thanks for all of the input.