
SIRES
When it comes to our bulls, we seek to use sires from proven cow families. Using modern genetics from time-tested pedigrees and industry leading sires.

GCC MASTERMIND 2104K
ASA #4173692 / PB SIMMENTAL
bw: 85 / ww: 606 / scrotal: 38 / rea: 16.9% / imf: 6.25
YARDLEY UTAH Y361
SIRE. W/C RELENTLESS 32C
MISS WERNING KP 8543U
W/C LOADED UP 32C
DAM. GCC RIOOFMERCEDES 8243F
JS BLACK SATIN 9B
Mastermind is the kind to make females. He has enough play on just how he's bred on paper that you should like but when you see him in real life, you will soon realize that he is carrying on the Boots legacy. He's top of the pen kind. He's big legged, powerful made, good structured, and flat out nice. Great cattle make great cattle.
MEYER RCC DRIVING FORCE G1361
ASA #4180989 / 1/2 SIMMENTAL
bw: 88 / ww: 645 / scrotal: 43
CNS DREAM ON L186
SIRE. WAGR DRIVER 706T
3C MELODY M668 BZ
OCC JOKER 620J
DAM. DUFF JOK 6106DIXIEERICA 9613
DUFF GN814G DIXIE ERICA 6105
Driving Force is a cornerstone herd sire here at RCC. He's a female maker. He's thick, masculine and the type of bull to change a cow herd.


Duff Jok 6105DixieErica 9613 - dam of
Meyer RCC Driving Force G1361 & Meyer RCC Hindsight G1500

MEYER RCC HINDSIGHT G1500
ASA #4180991 / 1/2 SIMMENTAL
bw: 78 / ww: 620 / scrotal: 39
MR CCF VISION
SIRE. MR CCF 20-20
HTP SVF DEW THE STROKE
OCC JOKER 620J
DAM. DUFF JOK 6106DIXIEERICA 9613
DUFF GN814G DIXIE ERICA 6105
Hindsight packs a punch in a moderate package. He's calves have the bone structure, overall mass and capacity. They're efficient.
GCC EXTERNAL LAW 3511
AAA #20905401 / PB ANUGS
bw: 88 / ww: 827 / scrotal: 42
DUFF NAPOLEON 232
SIRE. BLAIR'S EXTERNAL LAW
BAR-E-L ERICA 74A
COLEMAN BRAVO 6313
DAM. COLEMAN DONNA 9309
COLEMAN DONNA 4203
An External Law son that brings the POWER! Raw shape, expressive in his center body, level topped and sound as a cat. This guy will add pounds to any calf crop.
Griswold Cattle and Sadler Ranch captured the fall champion pen of three bulls at the 2025 NWSS's Angus Pen and Carload Show. The September 2023 sons of Blair's External Law, Hummel Argentine and Hummel South America posted an average weight of 1,588# and an average scrotal circumference of 39.2 centimeters.
All sons of Coleman Donna 9309.


Coleman Donna 9309 - dam of GCC External Law 3511

GCC HERITAGE 3544
AAA #20905372 / PB ANGUS
bw: 74 / ww: 670 / scrotal: 39
COLEMAN CHARLO 0256
SIRE. SADLER HERITAGE
COLEMAN DONNA 8113
S A V RESOURCE 1441
DAM. COLEMAN DONNA 504
COLEMAN DONNA 714
Long-bodied, heavy-muscled and bred to make females! A sure fire, sleep-all-night heifer bull that will not sacrifice power and substance.
GCC ARGENTINE 4065
AAA #20997053 / PB ANGUS
bw: 70 / ww: 710 / scrotal: 35
DON APARICIO SERRUCHO57 MAXI
SIRE. HUMMEL ARGENTINE
TUBETA FONTANA 7567-T/E-
COLEMAN BRAVO
DAM. COLEMAN CHLOE 9146
LAWSONS CHLOE C815
The cow power behind 4065 is unrivaled. Be on the lookout for progeny from him! He's perfect to breed heifers.

Coleman Chloe 9146 - dam of GCC Argentine 4065