Hello my friends I have since returned from a brief hiatus and I am ready to continue where I left off. I have since been working on a new project one of the more interesting things I got from my grandfather in the slew of rifles was a Remington xp-100 in .221 fireball. I have never worked with this cartridge before so I am very interested in seeing what it is truly capable of. In the pistols current state it is performing rather lack luster, I have shot 2 groups of a load known to be accurate in multiple other pistols and I struggle to get under 4" at 100 yards. I feel this is mainly due to the flimsy nylon stock Remington put on them in the 60's but I can't do anything about it atm. I plan on making a new stock out of some cherry lumber I have hidden away. I have since replaced the 6x Burris scope with a 24x target scope, and re-installed the rings and base. I hope to get that shooting under an inch for crows and wood chucks, and maybe even just to turn som heads at a benchrest shoot. Now enough rambling on that subject I am aware that the action of this pistol would make one heck of a benchrest rifle action, I believe it is based off the Remington 40x target action. At some point when the barrel goes out I want to use the action to make a new benchrest rifle but I want opinions on .221 fireball as a benchrest cartridge. I see some advantages and disadvantages of using it it's small case capacity strikes me as a plus for accuracy, but I see it lacks in velocity compared to say a .22 ppc. Would the loss of velocity really be an issue? my guess would be less resistance to wind. Another thing I like about this carttridge is it is a very efficient cartridge. I know there is a lot more to it, that's why I want you guys to inform me. I look forward to speaking with you all at the next shoot. I'll bring my 6ppc next time