Hi,
Slugged my 9 millimeter Taurus PT 99 AF bore to .358". Thought I might try Hornadys XTP 125 grain in .357 - if it chambers.
Anyone with experience of this, suggestions or points of interest?
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Most 9s have generous bores and I shoot cast bullets at .358 diameter. If you worked up carefully the .357 bullets would probably ok, but why shoot a bullet that has a cannelure and is made for a revolver in your 9mm?

Now that I think of it, I shot my 38 Super with 125 gr 357 JHP for years before I found out it should be shot with 9mm (.355) bullets.
But that was back when it was tough to find JHP or JSP in 9mm

Well, Matt, didn´t thought of it! Haven´t looked at the bullet. I just grabbed it because the shopowner (and staff; I think it was 5 persons hanging over me), wanted me out of the shop to go home for the evening - cant´t blame them ... This was their only .357 bullet - longarms was their speciality.
The .355 XTP I shot before had no cannelure and I didn´t thought of this.
So - I will, of course, have trouble with my COL because of the cannelure? And perhaps crimping/feeding to?
I want to shoot my TL-356-TC calibrated to .358" too, but I must have a jacketed/semi jacketed for one of the two diciplines that´s possible to shoot were I live.
I shall perhaps try to make an exchange with .38/.357 club members for a .38 bullet?
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why you are gonna taper crimp anyways.
just pay attention to how much cartridge spae the correct [almost] sized bullet takes up in the case and adjust the powder charge accordingly.
the extra .002 in size if all else is the same will only raise pressure maybe 1k.
i used cast boolits in my taurus and it finally started coming around with a load of 2.0 grs titegroup and a 158 swc sized to 358.
i was gonna try going to 359 but the gun had other issues [it liked to keep shooting further right and lower as i went along shooting steel plates] so i just traded it off.
don't miss it at all except it held a lot of rounds, which done me no good when they all went wherever they wanted to.

Lamar, that was what I was going to try. Sized .358" but with the Lee TL-356-TC 124 gr. which drops (in water) .361-.363" from the mold (WW + 1 % tin; BHN around 18; 132 gr,). Dont´t tell me it wouldn´t work ...
Reason for this belief is that I had the best two 5 shot group ever (around 28 yds.; 1,5") with this bullet siezed .356". Bad bullet lube though ... series 3-5 spread like you referred.
Could these two good (for the weapon!) series have its explanation in obturation? Chance? The velocity was about 1150 fps and the powder Vihtavuori N340 (4,4 gr.; COL 1,142")
Does the fast twist, 1-9,84", with its shallow grooves make it unsuitable to shoot cast bullets (132 gr.)?

no.
it'll shoot the cast just fine.
mine actually shot them better than jaxketed.
the trick as you'll see is to get them large enough.
i was able to get them down in the 850 fps range.
with no issues.
it never occured to me to shoot a larger jaxketed bullet.
as all i ever really shoot is cast in most everything.
the lee boolit is gonna have to be groove size at minimum.

Thanks, I will even try it uncalibrated!
And the revolver bullets will be shot!
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Just because a revolver bullet has a cannelure is no reason you can't shoot it in s semi auto pistol. I've always felt it best to match the jacketed bullet diameter to the groove diameter of the barrel. Now with cast bullets I'll always try to shoot the largest bullet that will let the loaded round chamber. Now as fat as your Lee bullets are dropping from the mold I doubt that they would chamber uncalibrated. You can take a fired case and try to slide one of the uncalibrated Lee cast bullet into the case. Remember that is a fired case unsized. That will give you a good idea of how fat a bullet you can load. Also remember that your case has to have a little room to expand in the chamber to release the bullet or very high pressure will occur.

Valuable piece of advice - sounds obvious when you hear it, but isn´t for the inexperienced! I have a lot of answers within reach in my fired cases...
"Fit is king" I read somewhere! Is BHN 18 an OK approach?

quote:

Originally posted by Arvensis:
Valuable piece of advice - sounds obvious when you hear it, but isn´t for the inexperienced! I have a lot of answers within reach in my fired cases...
"Fit is king" I read somewhere! Is BHN 18 an OK approach?

Yes 18 BHN sounds fine.

Sounds promising! The great tit started up a week ago, but lost his tune in the snow yesterday - not really spring yet ... I cast outside, you see.
I´ll cast some when he will be heard again, and will hopefully report some results soon ..
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