"I live in SC, it was in the low 70's here today but a little wet, when the wife isn't here on days like this I setup the Ironing Board in the Kitchen, set targets out the back sliding glass door and shoot from inside to out..."Rub it in Al!!!One of these days when our obligations are complete in South Dakota, you will see a BIG cloud of dust heading SOUTH! That will be ME getting back to my "Tribe"!The Cold Texan
Frankly, the Accu's I have are way more accurate than I so I never attempted targeting anything closer than 20 yards. Therefore I can't speak for 10 meter shooting but I see no reason why an Accu wouldn't drive pellets on top of each other at 10 meters.I have found my biggest issue with the Accu (after teardown, debur, degrease, and so on..) is the transfer port seal. The Accu design by nature, causes the piston to slam the breech against the barrel block each time its fired. Eventually the transfer port (tp) flattens out.The OEM transport seal is garbage and the only off the shelf replacement is shipped from Down Under at $14 plus shipping. So I've been seeking alternatives. The OEM transfer port seal is a square seal, 6mm ID, 1.5mm cross section, and 3mm depth. Nothing stateside close to those specs. So I've been using shims and a 70D o'ring (7/32" ID, 11/32", 1/16" cross section). Problem with that o'ring is the ID is too small and must be forced on and over barrel leade, stretching the o'ring. Seals okay initially but flattens out after 100 rounds or so. So I tried a similar size o'ring & shims but with 1/4" ID which is too large.However.. that o'ring can be squeezed into the recess and protrude enough for a good seal but... the oversize tension forces the o'ring to pop out. Not a problem if the o'ring is installed after the rifle is assembled. By removing the plastic rotating tab (bolt) and pulling the cocking lever down a few inches, the breech can be pushed back enough to then install the shims/o'ring. Then return the cocking lever and reinstall the black rotating lever. The breech will hold the o'ring in position in the groove where it will remain during loading and firing....But eventially too, maybe 200 pellets later, that o'ring flattens out, lowering the fps and opening up the extreme spread.Where I'm at now... Ordered a variety of o'rings of different sizes and hardness to experiment with (O'Ring Store).Why go to all this trouble instead of biting the $14 plus shipping bullet? Because I've no idea how long the Down Under seal will last either, I want a cheaper, closer source where I can get 10 seals for $1.The problem is much more noticeable in .22 than .177. I'm talking 50-70 fps drop, big time extreme spread, in a gun (.22) that only maxes out at @725 fps on the best of days, full moon, and stars aligned. The long breech transfer port of the Accu affects the .22 more negatively than in .177 so the .22 needs all the air/pressure it can get (maximum sealing).