12 Calibers vs Cast Iron Peerless 2300 Transmission, How Many Will It Take?

I recently broke a hub off a Peerless 2300 transmission in a junk Sears Custom 6. The whole tractor is junk, doesn't run and hasn't in years. I paid $135 for the tractor. The transmission is full of water, rusted inside, 58 years old and declared obsolete by Peerless.
All that to say yes I destroy it.
How many rounds will it take to break up this old cast iron unit?

Calibers I use in order:

.22LR Ruger 10/22, Beretta 9mm, Beretta 40S&W, S&W 44 Magnum, S&W 500 Magnum, 12 gauge 1oz slug in Mossbeeg 500, AR15 in 5.56, 12 gauge 1oz slug in VEPR AK, AK47 RPK in 7.62 x 39, AR15 in 450 Bushmaster, 30-30 lever action, SOCOM 16 in .308, Mosin Nagant M39 in 7.62x 54R, M1 Garand in 30/06

My Facebook link:

https://www.facebook.com/profile.php?id=61556739981923&mibextid=LQQJ4d

Tennessee Mountain Homestead Facebook link:

https://www.facebook.com/profile.php?id=61556522222600&mibextid=opq0tG

#firearmsafety #ar15pistol #pistolfiring #ammunition #homestead #tennessee #9mmluger #ak47gun #mosinnagant #guns #9mm #45acp #12gauge #molotvepr #vepr #ar15 #556 #shotgun #Beretta #smith&wesson #ammunition #fullmetaljacket #shotgunslug #boomstick #socom #socom16 #springfieldxd #barnyard #firearmstraining #shrapnel #m1garand

00:00 -Intro
00:50 -Gun show
03:41 -Predictions
04:30 -22LR
05:10 -9mm Beretta M9
06:20- 9mm FX9 10" barrel
07:41 -40 S&W Beretta 96
09:08 -XD45 45ACP
10:40 -S&W Model 29 44 Mag
12:30 -S&W 500 Magnum
14:53 -Mossberg 500 12 gauge
16:40 -AR15 5.56mm
21:22 -Molot VEPR AKM 12 gauge
23:10 -AK47 RPK 7.62x39
25:05 -AR15 450 Bushmaster
26:34 -Marlin 30-30 lever action
29:00 -SOCOM 16 in .308
31:14 -Mosin Nagant M39 7.62x54R
33:04 -M1 Garand in 30/06
33:22 -Tribute to Larry Toler
35:23 -Load & Shoot the M1 Grand
38:07 -Outtro