Get an LPGear ZuPreme headshell. It weighs around 14 g on its own, is more rigid and less resonant than the stock headshell, comes with higher quality wires, and enables azimuth adjustment. It will be an excellent match for that cartridge.
Yes, it's more expensive than a couple of pennies, but it's a much better headshell and its additional weight matches the compliance of your DL301. I used one with a Denon DL-160 and currently use it with an AudioTechnica AT150MLX. Both have around the same compliance as the DL-301.
As a lower cost alternative, I don't know about yours, but the stock headshell for my SL1210 M5G came with a 5g additional weight that screws onto the top of the headshell.
Yes, it's more expensive than a couple of pennies, but it's a much better headshell and its additional weight matches the compliance of your DL301. I used one with a Denon DL-160 and currently use it with an AudioTechnica AT150MLX. Both have around the same compliance as the DL-301.
As a lower cost alternative, I don't know about yours, but the stock headshell for my SL1210 M5G came with a 5g additional weight that screws onto the top of the headshell.