Here's goose call number two. Well actually there were a couple failed inserts and barrels mixed in, but I ended up here. Here's version two. Not any improvement over the sound of version one, but I modified the internals of the barrel somewhat and that made it workable. I wouldn't sell it, but it does run ok. I tried a couple mystery guts I have and one of them worked a little better than the SR1's, at least in this one.
Starting to figure out what changes what, but I have a long way to go. I bored the barrel 7/8" just past the end of the guts and then went straight down to 5/8". I had stepped it down with 3/4" around the guts' length but that wasn't working. Boring it out did improve things some. I think on the next one I'll go a little deeper with the 7/8".
The insert is 5/8" with a very slight flare at the exhaust end. Also went with a fatter insert because the first one felt way too small in my hand. It is about 2-1/8" long, not counting the gutsert's length. I made the gutsert from electrical conduit, which is mighty easy and beats the heck out of paying several bucks for one.
My uncle is trying to learn to call geese and has been wanting a call. Told him this one isn't perfect but will get him started until I can get the sound right where I want it. Then this one can be a paper weight.
Critiques please!