https://www.buffalobore.com/index.php?l=product_detail&p=402
Here's what Tim Sundles, the owner, has to say about this ammo:
45 ACP +P OUTDOORSMAN
255 gr. Hard Cast FN (925 fps/M.E. 484 ft. lbs.)
50 Round Box
ITEM 45-255
45 ACP +P ammo is externally/dimensionally identical to 45 ACP ammo and can be fired in any 45 ACP firearm that is in normal operating condition. However, the greater pressures and power of the +P ammo will give you greater slide velocity and if you are going to shoot more than a box or two of +P ammo, you should consider replacing your recoil spring with a Wolf Spring that gives roughly 4 to 6 lbs more spring weight than factory stock springs. A shock buffer might also be a good addition although it is not too necessary if you use the stronger spring.
I wouldn't worry about it in a 220 as long as you weren't running a full box through at a time. I would, however, run a magazine or two through before you go to make sure it feeds and ejects and shoots well in your particular gun.
