ascast wrote on Apr 25^th, 2026 at 1:38pm:


I have a similar firearm, I have never fired it. I ask myself why did I want it, I don’t shoot a shotgun, but I did buy 40 rounds of S&B ammo. I read the same information as you. Basically 280 Remington reduced do to the weaker break open action. It has a single set rifle trigger.
Mike

As I understand it, the 7x65R loads are already reduced from the 7x64 loads because the rimmed cartridges were expected to be used in all kinds of break open rifles (singles, doubles, combos, drillings) of many vintages. Mine happens to be a strong falling block single (Heeren) but I felt no need to even think about exceeding the data published for the 7x65R. It is a potent cartridge as is. That said here are some velocity figures I recorded for loads with the Speer 160 grain Grand Slam bullets at an OAL of 3.41 inches: 4350 47 to 50 grains 2280 to 2611 fps; 4831 49 to 51 grains 2205 to 2358 fps. Some of the loads I tried with the Lyman 287308 at an OAL of 3.457 used the following powders and amounts just for fun: Unique 11 and 12 grains; 2400 16 and 17 grains; 4759 22 and 24 grains; Red Dot 11 grains. I didn't record the results on target with any of these since before I got serious with anything my friend talked me into trying his 6.5x57R barrel on the rifle. From memory though, the Speer loads shot very well. (The 6.5x57R factory loads are real whip crackers, too.)