using .357 dia bullets in 9mm

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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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bradaz11
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using .357 dia bullets in 9mm

#1 Post by bradaz11 »

HI

founds some posts that say its fine having lead .357 bullets through a 9mm barrel.

i have some 140gr lead RNFP bullets from jon at JD reloading and some 137gr TC. would these be ok to use? and if so, what sort of load data do i need to use?

in the lyman 49th, it shows 147gr bullets, but not 140gr

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here is a pic of the bullet types

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any help is appriciated
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meles meles
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Re: using .357 dia bullets in 9mm

#2 Post by meles meles »

Paging Dromia...
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Re: using .357 dia bullets in 9mm

#3 Post by saddler »

Have at it

Gilly Howe is the chap you need to read up on...
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Re: using .357 dia bullets in 9mm

#4 Post by bradaz11 »

i have bullseye, unique, N320 and winchester WST to hand for loading....
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Re: using .357 dia bullets in 9mm

#5 Post by dromia »

You need to slug your barrel to know how appropriate the bullets may be.
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Re: using .357 dia bullets in 9mm

#6 Post by dodgyrog »

Viht 340 or 3N37 is best for these heavy boolits in 9mm (or Alliant Blue Dot)
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Re: using .357 dia bullets in 9mm

#7 Post by Laurie »

Loading 158gn 0.357" JSPs or JHPs in 9mm Para was a common practice pre Dunblane by the Long-Range Service Pistol guys. The use of the 9mm Browning GP35 in nearly out of the box spec was mandatory and they shot at not particularly large targets at 200 and 300 yards.

The guy (Clive somebody) who wrote pistol / revolver handloading articles in the old 'Target Gun' magazine for years and years when it was the NPA journal pioneered this technique and the accuracy was in a different league from standard 9mm jacketed ammo. Loads were 'hot', but you had to know what you were doing as pressures spiked to dangerous levels very quickly - a 0.1gn charge increase could push the load over the edge.
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Re: using .357 dia bullets in 9mm

#8 Post by bradaz11 »

i can't slug it yet as ovenpaa has it atm.

i'm just looking to see if there were established loadings for some out there, to enable me to empty a few mags (lead only) at the range on monday night, until i can get to the other range week after next where i can shoot fmj. also to get more time to buy some bits etc.
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Re: using .357 dia bullets in 9mm

#9 Post by tackb »

I used to use 140g truncated cone in my glock 17 , with blue dot.

I even managed some 158g lswc loads that made major but we're unreliable feeders .

I'll see if I can dig my data out ?
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Re: using .357 dia bullets in 9mm

#10 Post by bradaz11 »

yes please Tackb, any info is useful

but looking in my manuals, and with what rog says, N340 may be a way to go. i see blue dot has a about 1/3 higher grain count to n340, is the vhit tubular like n320? what consistency is bluedot? would the bluedot work easier in an autodisk for eg?
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