Paper Patch vs Grease Groove Bullets

[Furharvester]

To start with I have a J W Tolley double rifle chambered in .500/.450 no 1 Express. Not a cartridge you can buy at your local gun shop or any where for that matter. I was lucky enough to find and purchase 6 loaded cartridges for it on gunbroker. They were Eley brand cartridges. The bullets in the cartridges were/ are paper patch bullets. My question is do I have to use paper patch bullets when reloading the brass or can i get away with using grease groove bullets? Any help is greatly appreciated.

 

[GeorgeGibbs505]

I had a Tolley 500-450 single shot and used grease grooved bullets in it with good success. What type of rifling does it have?

 

[Furharvester]

 

[Furharvester]

I had a Tolley 500-450 single shot and used grease grooved bullets in it with good success. What type of rifling does it have?

Henrys rifling