Out to the range on this pretty southwest Virginia afternoon with the Nitro. Had some targets, some steel and two pumpkins to shoot at. Of course there were other anxious pumpkin shooters out there so the damage to the pumpkins was not limited to the Nitro, thus no pics of exploded pumpkins, but the Nitro delivers lots of energy at 100 yards.
I am starting to learn that the rifle likes the 450 grain K8 slug. I cast them out of 20:1 lead:tin alloy and size to .464". I have tried a variety of pressures and it settles down at 3100 regulated PSI at about 800 fps.
The attached photo shows three shots each at 50, 75 and 100 yards. Rifle was rested on a rolled up furniture pad. I adjusted the windage after the first three shots at 50 yards. I used the same point of aim for all three groups, thus you can appreciate the 15 inch drop at 100 yards as compared to 50 yards. the groups are (getting) respectable. I think a scope with mil dots or a graduated reticle will be next to avoid any adjustment of the scope while at range or hunting. Range can be closely estimated using the paralax adjustment on my current scope as a rangefinder.
Next experiments will be with an honest rifle resting sandbag to see if things can be tightened up a little bit more. I'll post pics.

Great job Hugh. I've also found that when you start getting really dialed in, your 100 yard groups will look like your 50 yard groups. Just an odd effect of good benchcraft.

Iphone

What's this?!?

Actual targets yet again?

Keep this up and people are going to think it's an airgun shooting forum.

Nice work there. I'd say that one of the scopes with the multiple aim points in the reticle would be just the ticket. No fiddling around with the knobs once you've got it dialed in.

Hugh, That's some nice shooting there! I agree that a mil-dot or other ballistic reticle will be just the ticket. I hung a Burris varmint scope on the Grizzly. It has open cirles that work out really well at 14X. I mention that as some of the manufacturers have their non-mil-dots that give you a few more choices in scopes. Again, great post.

Kent

I also find that most any type of reticle which gives multiple points of aim is great. An open circle should be wonderful. Like a ghost site and I've always loved that design.

Gary

Nice targets Hugh, especially when roughly rested. I like the way your 100 yard group beats the 75 yarder.
Cheers
Neil

Looking good!

Hugh,

You state that the charge is regulated. You're shooting tethered?

Lon

Hooked to the airhog via my regulator off the bench.

Hugh