Sinclair Cattle Company, based in Buffalo, Wyoming, is dedicated to raising problem-free, functional, fertile Angus cattle that perform in real-world conditions. Our program is built on the proven Emulation 31 lineage, developed at the historic N Bar Ranch and carried forward through the lasting influence of N Bar Emulation EXT.
More than 25 years ago, Sinclair became stewards of a significant portion of the N Bar cow herd. Today, those genetics continue to define our cattle—moderate, efficient, and built with the maternal strength and adaptability our customers rely on.
Focused on the Cow
Everything we do centers on the cow. We select for fertility, longevity, sound structure, and strong maternal ability. Our cows are expected to calve unassisted, raise a quality calf, and do it consistently with minimal input.Cattle are developed in practical ranch conditions, grazing as much as possible and calving primarily on grass. This environment ensures only the most functional cattle remain in the program.
Proven Genetics, Practical Approach
Our breeding program emphasizes consistency over trends. Through disciplined linebreeding and strategic use of AI and embryo transfer, we build predictable cattle backed by generations of proven females. Steers are retained through harvest to validate carcass performance.
Replacement heifers are developed in Pennsylvania, exposing them to a different environment and strengthening adaptability across our cow herd.
Only the Best Make the Cut
Each year, a large group of bulls is developed, but only the top end is offered for sale. Every bull is rigorously evaluated for fertility, soundness, and genetic merit. The result is a set of cattle designed to add value and reliability to our customers’ programs.
All cattle sell with Sinclair’s no-excuses, unconditional guarantee.
Built to Last
For generations, these cattle have been selected for live calves, pounds of beef, and superior mothering ability. Sinclair Cattle Company remains committed to that standard—producing cattle that are efficient, durable, and built to work.
We’re proud to carry on the N Bar legacy and deliver genetics that stand the test of time.
"We’re not chasing trends—we’re building cattle that last, just like the
N Bar cattle before them."
Fred Saunders
