  Results of the first validation of large guide field, $B_g / \delta B_0 \gg
1$, gyrokinetic simulations of magnetic reconnection at a fusion and solar
corona relevant $\beta_i = 0.01$ and solar wind relevant $\beta_i = 1$ are
presented, where $\delta B_0$ is the reconnecting field. Particle-in-cell (PIC)
simulations scan a wide range of guide magnetic field strength to test for
convergence to the gyrokinetic limit. The gyrokinetic simulations display a
high degree of morphological symmetry, to which the PIC simulations converge
when $\beta_i B_g / \delta B_0 \gtrsim 1$ and $B_g / \delta B_0 \gg 1$. In the
regime of convergence, the reconnection rate, relative energy conversion, and
overall magnitudes are found to match well between the PIC and gyrokinetic
simulations, implying that gyrokinetics is capable of making accurate
predictions well outside its regime of formal applicability. These results
imply that in the large guide field limit many quantities resulting from the
nonlinear evolution of reconnection scale linearly with the guide field.
