Thread: 500 BPE load advice

Well I have just fired the Hollis Martini
Set up with sand bags and a string on the trigger
It went bang like I had expected
Primer was fine
Still sitting where I put it so not to much recoil
Shot clearly hit roughly where I had aimed it at a full sheet of ply wood
Very easy to see which hole was the 500 !

Load was
Large rifle primer
70 grains by volume of FFG
Compressed slightly with a card wad
Length of PEF rod slightly compressed
Card wad
Lubed and sized 450 grain projectile
Hard finger pressure into expanded neck
Perfect ignition
Case came out with a light tap from a cleaning rod ( no extractor )

When I get some time I will trim the rest of the cases and do the same loads again and run it through the chronograph and see what its doing.
Just want to show the case to a friend and get his take on where to seat the projectile etc.
I'm picking if this was a 500 Express that was firing 340 grain paper patch projectiles that they would have been seated well out to be able to fit the original 136 grain load in there
Because the lead area seems quite long even for the 450s
Lots to learn