I got my hands on some 73 grain A-Max bullets and decided I'd post what I have learned about them. I could find very very little about them online. Apparently they were a special run done by Hornady and sold only at Midsouth Shooter's Supply.
75 A-Max's will not load mag length in most factory rifles, but these 73 grain bullets will. They are about 0.070" shorter than the 75 A-Max and look like they have a tangent ogive rather than a secant ogive. In my Remington 700 5R Milspec, which has a fairly long throat, they still fit mag length even when jammed 0.010" into the rifling. They seem to shoot just as good as the Hornady 75 grain HPBT do in that same gun.
Here are a few pictures to show what they look like compared to a 75 A-Max and a 75 HPBT. The 73 grain A-Max is in the middle.
75 A-Max's will not load mag length in most factory rifles, but these 73 grain bullets will. They are about 0.070" shorter than the 75 A-Max and look like they have a tangent ogive rather than a secant ogive. In my Remington 700 5R Milspec, which has a fairly long throat, they still fit mag length even when jammed 0.010" into the rifling. They seem to shoot just as good as the Hornady 75 grain HPBT do in that same gun.
Here are a few pictures to show what they look like compared to a 75 A-Max and a 75 HPBT. The 73 grain A-Max is in the middle.



