All,

Thank you for the warm welcome and feedback.

When I began researching the .303 Velox round round, I was hoping the the cartridge was simply the 7.65x53 round loaded with Fraser's patented serrated projectiles. According to Kirton's book, this is not the case. The book states the bolt on .303 Velox rifles will not close on standard 7.65 mauser cartridges due to the longer length of the cartridge. The book mentions that the factory often re-reamed earlier .303 Velox rifles to accept the 7.65 round in the early 1900s. Kristen's book also provides a very detailed schematics of the dimensional differences in the the two cartridges.

I do not have the rifle in hand yet, but hope to have it by Christmas. The first order of business will be to do a chamber cast to confirm the original .303 Velox chambering. If the cast shows the gun has been modified to accept the 7.65 round, that is what I'll shoot. I suspect though that the chambering is the original .303 Velox. I'd like to keep the rifle this way and need to figure out what I will take to create rounds for it. I suspect that will involve having cases made for the gun which I expect to be very pricey. Hopefully someone has been down this road already and can provide their thoughts and guidance.

Thanks again for the input,

Ken