The highest-capacity magazine currently available is the Beta Company’s C-Mag. It’s been around a while and has been used by the military. It has proven reliable and capable. It avoids the long length problem by using twin 50-round drums.

With two 50-round drums, one to each side of the central mag tube, the short length, top to bottom, allows prone or bench use and balances the weight evenly. Since pushing two columns of cartridges together creates friction, graphite lube is recommended for best results.

The Beta C-Mag has an elegance and panache unmatched by the various box magazines. When you need a lot of ammunition ready to go, the Beta C-Mag will deliver. Long-term storage loading is not a problem with the Beta, either.

 Beta offers two loading tools depending on your needs. The Personal Loader loads loose cartridges and the Speed Loader uses stripper clips to load the magazine. The Personal Loader was used here and worked well.