Todays groups with two different alloys, enlighting
285 yards, tethered to 4000 PSI, I had fired 10 shots on a clean barrel before these two groups, so they are #11 thru #31 shots on a cleaning.
I shot the group on the left with the 25%Lyman#2 and 75% lead, then only doing a 3.5 MOA windage correction and a change to 40-1 alloy did the group high and right.
The velocity for the first grop was from 1109 to 1124 for the Lyman#2 and lead, for the 40-1 it was 1134 to 1145.
The group on the left is one of my all time best but I may have lost count and fired only 9, it does look like there is a couple of doubles or superimposed hits, hard to tell since we don’t have ejected cases.
RC
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Looks like the firelapping in your JH really tightened things up. Truly Rock solid. Very very nice. I forgot how many inches your barrel is?
Also am curious, if you shot a 3 or 4 shot group untethered at the 285 yards if you expect the later shots in that group to drop much?
Andy,
Sorry, I want back and edited to add the information you asked for.
I was testing different alloys today. With this rifle at that range, 2 maybe 3 shots is all your going to get on one fill in a tight group if not tethered, so I almost always shoot tethered.
RC
How many yards was that from?
Also wondering if you are taking 8 shots before refill? and it brushing inbetween each shot, or after each group?
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Andy,
My barrel is 36 inches.
I would suspect that if I shoot a 5 sot group, shots one two and possibley three would be inside a group like you see in these pictures, but shots four and five would be dropping considerably.
But fortunately I have a really good way to find out 😛 .
I will go out and give it a try if the weather permits today.
Shooting at hunting ranges, at least hunting ranges for most of us, inside 50 yards, five shots will be inside the kill zone of a ground squirrel.
RC