For cheap shooting try Maxam CSB5.

A lot of us in my club have bulk bought Vectan AS in the past 15years but it doubled in price and became scarce.

We have started to use the Maxam powder and like most moderate pistol cartridges use, its a fast burning shotgun powder.

Available in 14kg bulk for about £450.

TBH just about any fast shotgun/pistol powder is more than adequate for paper punching out to 100 yds.

I can see no point in paying stupid money on 1lb tubs of Bullseye etc.

Viht n320 is a great powder. Just a pity we cant get it in money saving 2kg tubs like in Europe.