.357 indoor load

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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 treated as suspect and not used.

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Forum rules
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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hobbesy
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.357 indoor load

#1 Post by hobbesy »

I have 500 .357 SWC bullets in 180gn, I can't find any load data that keeps them under the 475 FPE limit my range has, some help or a point in the right direction would be most appreciated.

They're going to be used in a 16" Winchester 94 trapper.

Thanks
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
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dromia
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Re: .357 indoor load

#2 Post by dromia »

Have a look at 38 special loadings.
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For fine firearms and requisites visit

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hobbesy
Posts: 630
Joined: Sat Jan 05, 2013 7:56 pm
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Re: .357 indoor load

#3 Post by hobbesy »

Only showing 170gn cast in the Lyman book, starting @ 3gn of titegroup. Shall I start there?
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
hobbesy
Posts: 630
Joined: Sat Jan 05, 2013 7:56 pm
Contact:

Re: .357 indoor load

#4 Post by hobbesy »

Sorry, my bullets are truncated cone not SWC
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
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WelshShooter
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Re: .357 indoor load

#5 Post by WelshShooter »

hobbesy wrote:I have 500 .357 SWC bullets in 180gn, I can't find any load data that keeps them under the 475 FPE limit my range has, some help or a point in the right direction would be most appreciated.

They're going to be used in a 16" Winchester 94 trapper.

Thanks
Using this calculator:
http://www.airgundepot.com/airgun-calcu ... ticle.html

And the information you provided, 180gr projectile and FPE of 475, the calculated velocity to achieve this energy is 1,090 fps. There is plenty of data on Ramshot website under .357 magnum for lead bullets at 180gr, but there's not much within the velocity limit. There is a load with Accurate No2 powder and a 187gr lead bullet which produces a starting velocity of 855fps from a 6" barrel which might be suitable.

There is also load data on Reload Swiss' website (RS Loading Data, not customer) for .38 special using RS12 and RS20 powders to produce starting velocities of 459fps and 568fps respectively, from a 7.5" barrel. But this is with a 180gr H&N coated bullet.

Due to you having a longer barrel compared to loaded data, you would need to chrono your loads.
hobbesy
Posts: 630
Joined: Sat Jan 05, 2013 7:56 pm
Contact:

Re: .357 indoor load

#6 Post by hobbesy »

WelshShooter wrote:
hobbesy wrote:I have 500 .357 SWC bullets in 180gn, I can't find any load data that keeps them under the 475 FPE limit my range has, some help or a point in the right direction would be most appreciated.

They're going to be used in a 16" Winchester 94 trapper.

Thanks
Using this calculator:
http://www.airgundepot.com/airgun-calcu ... ticle.html

And the information you provided, 180gr projectile and FPE of 475, the calculated velocity to achieve this energy is 1,090 fps. There is plenty of data on Ramshot website under .357 magnum for lead bullets at 180gr, but there's not much within the velocity limit. There is a load with Accurate No2 powder and a 187gr lead bullet which produces a starting velocity of 855fps from a 6" barrel which might be suitable.

There is also load data on Reload Swiss' website (RS Loading Data, not customer) for .38 special using RS12 and RS20 powders to produce starting velocities of 459fps and 568fps respectively, from a 7.5" barrel. But this is with a 180gr H&N coated bullet.

Due to you having a longer barrel compared to loaded data, you would need to chrono your loads.
Thanks for all that info

Haven't got either of those powders, I've been using 158gn with titegroup and getting decent groups.

Got Unique and lil'gun as well, I've got access to a chrono so can check anything I shoot.
S&W M&P 15-22
Stoeger Sec 1
Adler a110 Sec 1
Winchester 94 .357,
Marlin 45-70
Savage 10 FP-SR .223
AI AE .308
.357 Westlake Alpha

Have slots open for.....
.22 LB pistol
.22LR rifle
User avatar
Sim G
Posts: 10752
Joined: Sat Nov 06, 2010 9:09 pm
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Re: .357 indoor load

#7 Post by Sim G »

3.5gns of Tightgroup or 4.5gns of Unique....

5.0gns of HS6 worked well, but I used all of your HS6 up! lol
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?

Guns dont kill people. Dads with pretty Daughters do...!
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