GM Hardcast Bullets

GM Hardcast Bullets have been manufacturing bullets here in the UK for around 25-years, producing high quality cast projectiles in a range of calibres, types and weights. Their alloy ‘recipe’ is a closely guarded secret, but it produces truly hard bullets ideal for most shooting applications. For the purposes of this review .38/.357 bullets in 148-grain wadcutter, 158-grain semi wadcutter and 158-grain round nose flat point were tested along with the 405-grain round nosed flat point bullet in 45-70-calibre.

The .38/.357 bullets come in boxes of five hundred and the 45-70 in boxes of 100. As the name suggests, these bullets are indeed ‘hardcast’ and testing using the Lee Lead Hardness Test Kit showed them to be approximately 16.6 BHN, which is at the high end for a lead alloy hardness.

A sample of each bullet type was checked for weight and diameter and the results were very consistent. All diameters were as shown on the box, with the exception of the full wad cutters which actually measured .357, and weights were generally within just under a half of one percent of each other. The weights were all very slightly higher than stated on the box, the difference being the weight of the lube, and the consistency was truly impressive.

Conclusion

The GM Hardcast bullets are great quality and the consistency is very impressive, even surprising, for a mass-produced product. It is good to open a box of bullets and find them all to be in top condition with no rejects. All of the bullets tested performed very well and they are my go-to lead bullet brand.