This may be my last stripper post for a while because I think I found the magic.
"Previously, on Tales About Strippers,"... I've been noodling around 3D printing strippers for my HW97. After going through different designs, I had settled on one that is basically a Hatsan/Rowan style stripper with a fixed cone. It's been working good, but it's a little loud for shooting in the house or back yard. So I printed a 4" moderator. Accuracy was OK, slightly bigger groups compared to the stripper. But the shot cycle felt weird, almost like the air in the moderator was causing a little recoil. A have a file for a moderator with air holes at the muzzle end that I had printed for my LGV. The previous print did not do well, the sides were too thin and you could see the outline of the baffles. So I went into design mode and thickened the walls, increased the pellet hole, removed the 1/2" female thread and added a male HW97 thread. Here's what's going on inside this moderator. Just past the muzzle there is a cone (like the stripper) with air holes. The cone transitions into 10 baffles configured like nested chevrons. Here's a picture:
I was happy with the print and I chronoed it to make sure there was no velocity loss. Nope, right at 790 fps, just like the stripper.
Then I shot it a few times in the house at 10 yards, there was a slight POI difference. And the sound is much reduced.
I went to the range today to try it at 50 yards, even though there was a pretty nasty wind. As I was sighting it in with the moderator, I had to come down about 10 clicks. Not up, down. Not sure if this is due to the wind or if it's shooting more efficiently, I'll need to wait for a less windy day to check this out.
Once I got it sighted in, I switched to the stripper and shot this group. Not a bad group for 50 yards off the knee in the wind.
Then I put the moderator back in and shot this group.
Wow. At the time, I thought I put 4 through the same hole but after looking at it I think it was probably 3 through the top hole and 2 through the bottom. Still, I think the time for tinkering has come to an end. I have found my huckleberry.
Here's a photo of the stripper and the moderator lounging sexily on a bum bag.
If anyone wants either STL file to print these yourself, send me a DM and I would be happy to oblige. I think I'll put a 1/2 female thread back into the new moderator design and try it on the LGV.
"Previously, on Tales About Strippers,"... I've been noodling around 3D printing strippers for my HW97. After going through different designs, I had settled on one that is basically a Hatsan/Rowan style stripper with a fixed cone. It's been working good, but it's a little loud for shooting in the house or back yard. So I printed a 4" moderator. Accuracy was OK, slightly bigger groups compared to the stripper. But the shot cycle felt weird, almost like the air in the moderator was causing a little recoil. A have a file for a moderator with air holes at the muzzle end that I had printed for my LGV. The previous print did not do well, the sides were too thin and you could see the outline of the baffles. So I went into design mode and thickened the walls, increased the pellet hole, removed the 1/2" female thread and added a male HW97 thread. Here's what's going on inside this moderator. Just past the muzzle there is a cone (like the stripper) with air holes. The cone transitions into 10 baffles configured like nested chevrons. Here's a picture:
I was happy with the print and I chronoed it to make sure there was no velocity loss. Nope, right at 790 fps, just like the stripper.
Then I shot it a few times in the house at 10 yards, there was a slight POI difference. And the sound is much reduced.
I went to the range today to try it at 50 yards, even though there was a pretty nasty wind. As I was sighting it in with the moderator, I had to come down about 10 clicks. Not up, down. Not sure if this is due to the wind or if it's shooting more efficiently, I'll need to wait for a less windy day to check this out.
Once I got it sighted in, I switched to the stripper and shot this group. Not a bad group for 50 yards off the knee in the wind.
Then I put the moderator back in and shot this group.
Wow. At the time, I thought I put 4 through the same hole but after looking at it I think it was probably 3 through the top hole and 2 through the bottom. Still, I think the time for tinkering has come to an end. I have found my huckleberry.
Here's a photo of the stripper and the moderator lounging sexily on a bum bag.
If anyone wants either STL file to print these yourself, send me a DM and I would be happy to oblige. I think I'll put a 1/2 female thread back into the new moderator design and try it on the LGV.
