Models include:
Browning (except calibers .243 and .308): BF-11 (front) and BR-33 (rear)
Colt Coltsman F.N.: BF-11 (front) and BR-33 (rear)
Husqvarna (lg. receiver ring): BF-11 (front) and BR-33 (rear)
Jefferson 158 F.N.: BF-11 (front) and BR-33 (rear)
Marlin 455; BF-11 (front) and BR-33 (rear)
Mauser 1898 (except small ring carbine), 1909 (Argentine 7.65mm) & VZ 24: BF-11 (front) and BR-33 (rear)
Savage 99 (all models, including those with thumb safety): BF-12 (front) and BR-36 (rear)
Sears (J.C.) Higgins 50 & 51-L: BF-11 (front) and BR-33 (rear)
Remington 740, 742 & 760: B-2
Weatherby F.N. Action: BF-11 (front) and BR-33 (rear)
Western Field 750: BF-11 (front) and BR-33 (rear)