Very nice offer, LoonWulf!
Before I got a chronograph I timed a BB from when shot straight up until it hit the ground (I didn't even use a stopwatch- just "one-thousand one, one thousand two...") and multiplied the time by 32.8 and that gives a close approximation of the FPS. Obviously this requires a still day, if there's any wind to speak of the BB may be blown too far away to hear it hit. And use caution around anything that might be damaged by the falling BB, including kids, pets, etc.
@hinz57 I believe smoothing the airway has to help a little, and everything adds up. Good tip about the height of the magnet- that's also something I will be sure to check. I was wondering about that stock, it didn't look like my Red Ryder stock did when I had it sanded down. Now that you mentioned the base gun being the 1998 it makes sense! haha
On the trigger, I have set up all but one of my Daisys w/o a rear return spring installed. I have one gun set up w/a return spring in place of the sear spring and it is VERY light, but I don't recommend doing that because if the gun was in the wrong hands an accidental discharge could occur. But on a well broken in trigger assembly, this makes for a sweet trigger for bench rest shooting. Not so much for field work, though.
I hope to get the Crosman rifled barrel installed into the abutment today. I will leave it full length for early testing. I have a couple spare sights, I'll use one of them to modify to let the barrel extend out the front.
In the end I suspect what will be found is the 499 barrel will offer the best performance for both velocity and accuracy, especially if using the good Avanti ground shot made for it. But if there's one thing I've learned through this, it is to expect the unexpected!