That is a thing of beauty! At any distance, just think of all the factors that need to come together to get all the pellets through the same hole! That's the beauty of this exercise.
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One hole group challenge - smallest group size
- Thread starter rsfrid
- Start date
ok first time 10 shots one large hole 
thought after the last post id try for real . Edge to edge , haven't time to figure ctc .
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Yes, or you can do overall in mm and subtract 4.5. Goal of this exercise is to try for overall measurement equal to diameter of the pellet used.
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Here is target sheet using same pellets at 23 yards with my new FX Impact M3 600mm barrel on power level 1:
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ThomasT
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- Apr 25, 2021
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Hello @rsfrid
A perfect One Hole could be posted as the diameter of the pellet in inches, ie., 5-shots in one hole with a 4.5mm pellet could be posted as .177 inches. OR take the .177 inches and divide by two?
This is going to be another fun target to shoot.
ThomasT
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But we are documenting spread. If spread is zero, then that should be what we post? Average will almost never be zero, tho.
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Bet if we went to one of those PB benchrest gurus, they'd use plugs and find the tinyest bit of variation just so there would be a. number greater than zero.Hey again Ross,
You are 100% correct, zeroed is what it is
ThonasT
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ThomasT
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- Apr 25, 2021
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Hello Ross,
It has been a while since I offered a card for the One Hole Challenge, but the outside weather is storming so I was forced inside my shop. Look at the lower left and the first sighter, which I shot 5 rounds with Crosman Match Wadcutter pellets and with my Crosman Challenger.
ThomasT
It has been a while since I offered a card for the One Hole Challenge, but the outside weather is storming so I was forced inside my shop. Look at the lower left and the first sighter, which I shot 5 rounds with Crosman Match Wadcutter pellets and with my Crosman Challenger.
ThomasT
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Good to know!
Would you be willing to share the regulator settings for 14gr .22 pellets with me? I settled on 50-75 to keep groups small, 45-75 gave me 850fps but POI shifts.
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I sure would! I am collecting tunes so I can make short work of adjusting the barrel swaps.
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OK here goes:I sure would! I am collecting tunes so I can make short work of adjusting the barrel swaps.
First watch this
I got all my info from Steve on that video. My tune is as follows:
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