Getting There with R92 357 Mag and Lead Bullet

Extend your shooting experience while reducing the cost of your ammunition!

Re: Getting There with R92 357 Mag and Lead Bullet

Postby mr surveyor » 22 Feb 2018 21

GasGuzzler wrote:I pulled six of 12 I had. Pretty much nothing I quoted from memory is correct.

I have OAL, charge weight, bullet weight as loaded. I need the case capacity (Starline). I guess I need to ruin six good primers by filling with water?



why do you need to ruin "six good primers"?

I'm not sure how perfectly water proof they might be, but I'd assume that spent primers would more than do the trick. I put spent primers into resized brass to build test/dummy rounds, mainly to check for cycling in the gun(s) before loading them hot. If the spent primers can hold up to the abuse I've given the dummy rounds (particularly breaking in the R92s in .44 mag and .357 mag) I'd imagine they'll hold the pressure of a cc or two of water.

Maybe I missed something in the translation?


jd
-----------------------------------------------------------------------------------------
Guns - They aren't really yours until you void the warranty!
User avatar
mr surveyor
1000 Shots
1000 Shots
 
Posts: 1341
Joined: 16 Mar 2013
Has thanked: 271 times
Been thanked: 227 times
My Rossi Choice: M92
Location: NE Texas

Re: Getting There with R92 357 Mag and Lead Bullet

Postby Ranch Dog » 23 Feb 2018 00

GasGuzzler wrote:I pulled six of 12 I had. Pretty much nothing I quoted from memory is correct.

I have OAL, charge weight, bullet weight as loaded. I need the case capacity (Starline). I guess I need to ruin six good primers by filling with water?

Do You have any decapped primers? Punch the good ones out, they can be reused, and reseat the spent primers.
Michael
Image
User avatar
Ranch Dog
Site Admin
Site Admin
 
Posts: 8638
Joined: 23 Jan 2012
Has thanked: 1431 times
Been thanked: 1944 times
My Rossi Choice: Rio Grande
Location: Cuero, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby GasGuzzler » 23 Feb 2018 06

I have half a large pickle jar full of spent primers. I keep them for some yet to be determined reason. Now I have one use for them.
__________________________________________________________________________________________
I've always been crazy but it's kept me from going insane.
User avatar
GasGuzzler
Supporter
Supporter
 
Posts: 1883
Joined: 02 Nov 2015
Has thanked: 136 times
Been thanked: 204 times
My Rossi Choice: Revolver
Location: Cooke County, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby Archer » 23 Feb 2018 21

GasGuzzler wrote:I have half a large pickle jar full of spent primers. I keep them for some yet to be determined reason. Now I have one use for them.


I've heard they are brass so you should be able to recycle them.
Of course the lead oxides that are likely to be on them are poisonous.
Archer
2000 Shots
2000 Shots
 
Posts: 2681
Joined: 04 Feb 2014
Has thanked: 87 times
Been thanked: 361 times
My Rossi Choice: M92
Location: SoCal Loco

Re: Getting There with R92 357 Mag and Lead Bullet

Postby GasGuzzler » 24 Feb 2018 09

Ranch Dog wrote:
GasGuzzler wrote:Measure enough bullets and weigh enough cases to form an average.


Only had 12 made so I pulled six to measure. These are the averages. The only parameter with worrisome deviation was the charge weight but it was hard to measure at the flakes were stuck to the bullet base/gas check from sloppy lube treatment.

OAL: 1.657" (hence R92 only, won't chamber in the Blackhawk)

Charge: 17.0 gr.

Bullet weight: 189.6 grains

Case weight: 76.8 grains

Case water capacity weight: 26.7 grains
__________________________________________________________________________________________
I've always been crazy but it's kept me from going insane.
User avatar
GasGuzzler
Supporter
Supporter
 
Posts: 1883
Joined: 02 Nov 2015
Has thanked: 136 times
Been thanked: 204 times
My Rossi Choice: Revolver
Location: Cooke County, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby Ranch Dog » 24 Feb 2018 10

GasGuzzler wrote:
Ranch Dog wrote:
GasGuzzler wrote:Measure enough bullets and weigh enough cases to form an average.


Only had 12 made so I pulled six to measure. These are the averages. The only parameter with worrisome deviation was the charge weight but it was hard to measure at the flakes were stuck to the bullet base/gas check from sloppy lube treatment.

OAL: 1.657" (hence R92 only, won't chamber in the Blackhawk)

Charge: 17.0 gr.

Bullet weight: 189.6 grains

Case weight: 76.8 grains

Case water capacity weight: 26.7 grains

What was is the average bullet length with the checks installed?
Michael
Image
User avatar
Ranch Dog
Site Admin
Site Admin
 
Posts: 8638
Joined: 23 Jan 2012
Has thanked: 1431 times
Been thanked: 1944 times
My Rossi Choice: Rio Grande
Location: Cuero, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby GasGuzzler » 24 Feb 2018 12

0.748"
__________________________________________________________________________________________
I've always been crazy but it's kept me from going insane.
User avatar
GasGuzzler
Supporter
Supporter
 
Posts: 1883
Joined: 02 Nov 2015
Has thanked: 136 times
Been thanked: 204 times
My Rossi Choice: Revolver
Location: Cooke County, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby Ranch Dog » 24 Feb 2018 15

GasGuzzler wrote:0.748"

Thanks, will generate some number in a bit.
Michael
Image
User avatar
Ranch Dog
Site Admin
Site Admin
 
Posts: 8638
Joined: 23 Jan 2012
Has thanked: 1431 times
Been thanked: 1944 times
My Rossi Choice: Rio Grande
Location: Cuero, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby Ranch Dog » 24 Feb 2018 17

Okay, here is what QuickLoad says you have with the 17.0-grains of Lil'Gun:
  • Case filled to 103% of the useful capacity (compressed) with the bullet seated.
  • 44.9K PSI
  • 1860 FPS at 70°
I think the rifle can handle it, but as far as the bullet is concerned; it depends on your alloy as that is a lot of pressure for a wheel weight bullet even if it was water quenched at the drop.

If your bullet is a wheel weight based alloy, the predominate mix, and air cooled, I would suggest 15.4-grains of Lil'Gun. That is a case fill of 98%, 30.6K PSI, and 1690 FPS.

If the bullets are water quenched at the drop, you would be good with 16.0-grains of Lil'Gun. With that, you have a 102% case fill, 42.0K PSI, and 1755 FPS. I doubt you will be needing to clean the lead out of your barrel with either of the above suggestions if your bullet is meeting the alloy and treatments that I indicated. Not sure with the 17.0-grain load.
Michael
Image
User avatar
Ranch Dog
Site Admin
Site Admin
 
Posts: 8638
Joined: 23 Jan 2012
Has thanked: 1431 times
Been thanked: 1944 times
My Rossi Choice: Rio Grande
Location: Cuero, TX

Re: Getting There with R92 357 Mag and Lead Bullet

Postby GasGuzzler » 24 Feb 2018 20

I figured it was hot and so did the person I asked a year or more ago when I assembled them.

BUT!

Now I have better data.

I kinda wanna let one go just to see but then if I say that all the reloading mafia will come after me.

Backing off by that much powder (efficiency) and only lose a theoretical 170 FPS is fine with me at such a heavy for caliber bullet.

I do have 300-MP as well.

Grin

I got no pats on the back for my R92 being able to cycle 1.657" +corn

The Brazilians made that happen not me. +guns
__________________________________________________________________________________________
I've always been crazy but it's kept me from going insane.
User avatar
GasGuzzler
Supporter
Supporter
 
Posts: 1883
Joined: 02 Nov 2015
Has thanked: 136 times
Been thanked: 204 times
My Rossi Choice: Revolver
Location: Cooke County, TX

PreviousNext

Return to Handloading

Who is online

Users browsing this forum: Google [Bot] and 9 guests

  • Advertisement