Whew what a day. I was trying to sight in my Slingshot rifle today and that was quiet a effort. My shots where going from one side of the paper to the other and I could not work it out. I tried leveling the forks, changing scope rings, eliminating parallax error. I could not work out why my groups where so poor. I even watched Bill Hayes's video on how to shoot a sling shot and applied his release method to the trigger, no jerking motions and following thru (a USMC gunnery training video I got that from).
Some shots I was stacking them one on top of the other then the group would move 5 centimetres. "Wow what in blazes is this?" I thought. The last thing I noticed was there was some slop in the pica tinny rifle base. I had tightened it down to where I was afraid of snapping the screw. "No, this is no good" then I remembered seeing info on shimming scope rings for MOA (minutes of angle). So I looked it up and I found info on shimming a pica tinny rifle based on a AR-15. So I tried it. A piece of coke can cut to size and placed under and to the sides of the pica-tinny rail. So what you know? no more slop, no more extreme wind-age adjustments. Beautiful.
The groups started to stack on top of each other again. All of this was at ten yards and as Murphy's law would dictate my bandset snapped. It was the second one today. Each set got about forty to fifty shots. I was nearly at my wit's end with this rifle, thinking I had wasted my money or I was going to have to buy some expensive adjustable scope rings but luck would have it, the pica tinny was fixed with less than 1 cent worth of aluminium can.
Sorry, I don't want to show the groups I am too ashamed. They look like Swiss cheese.
The little bit of black in this picture is graphite to help the pouch slip cleanly from the mechanical release. The first bandset snapped and I thought it might be because of some silicon grease I applied. Turns out these bands only last for about 40-50 shot's. If these rolls of Sheshou guru 1mm continue like this I will try GZK 1mm next time.
Jeez, I learnt a'lot in 8 hours of trial and error.
Thank you you to all who read, like and comment on this post. Salutations to all.
PK.
Whew what a day. I was trying to sight in my Slingshot rifle today and that was quiet a effort. My shots where going from one side of the paper to the other and I could not work it out. I tried leveling the forks, changing scope rings, eliminating parallax error. I could not work out why my groups where so poor. I even watched Bill Hayes's video on how to shoot a sling shot and applied his release method to the trigger, no jerking motions and following thru (a USMC gunnery training video I got that from).
Some shots I was stacking them one on top of the other then the group would move 5 centimetres. "Wow what in blazes is this?" I thought. The last thing I noticed was there was some slop in the pica tinny rifle base. I had tightened it down to where I was afraid of snapping the screw. "No, this is no good" then I remembered seeing info on shimming scope rings for MOA (minutes of angle). So I looked it up and I found info on shimming a pica tinny rifle based on a AR-15. So I tried it. A piece of coke can cut to size and placed under and to the sides of the pica-tinny rail. So what you know? no more slop, no more extreme wind-age adjustments. Beautiful.
The groups started to stack on top of each other again. All of this was at ten yards and as Murphy's law would dictate my bandset snapped. It was the second one today. Each set got about forty to fifty shots. I was nearly at my wit's end with this rifle, thinking I had wasted my money or I was going to have to buy some expensive adjustable scope rings but luck would have it, the pica tinny was fixed with less than 1 cent worth of aluminium can.
Sorry, I don't want to show the groups I am too ashamed. They look like Swiss cheese.
The little bit of black in this picture is graphite to help the pouch slip cleanly from the mechanical release. The first bandset snapped and I thought it might be because of some silicon grease I applied. Turns out these bands only last for about 40-50 shot's. If these rolls of Sheshou guru 1mm continue like this I will try GZK 1mm next time.
Jeez, I learnt a'lot in 8 hours of trial and error.
Thank you you to all who read, like and comment on this post. Salutations to all.
PK.
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