That was my first thought. Nope. Tried two scopes. Checked bases. Checked stock bolt. Checked fore-end tightness. Tried another barrel, too, with yet another scope. Thanks for offering a suggestion.Something is loose.
Have several, what do you need?Anybody have experience with a repurposed small Martini action with a 22 Hornet barrel?
Is there too much head space?That was my first thought. Nope. Tried two scopes. Checked bases. Checked stock bolt. Checked fore-end tightness. Tried another barrel, too, with yet another scope. Thanks for offering a suggestion.
Overall length? Carbon ring?That was my first thought. Nope. Tried two scopes. Checked bases. Checked stock bolt. Checked fore-end tightness. Tried another barrel, too, with yet another scope. Thanks for offering a suggestion.
Tiratore, thanks for the dm,I think you should post that information in the thread to give everyone the bigger picture.
When trying to assist information is the key to getting good responses.
Ignition can cause vertical, ie weak firing pin spring.
But before replacing the spring, I would stop using the graphite in the necks and lightly crimp the bullet in place. Many found that crimping the bullet improved consistency.
What are the readings from your Garmin?
Did the groups change when the barrel was replaced?
Btw that’s a nice looking Martini.
Kiwi

October 8 group sizes - m.o.a., 100 yd, 5-shots each. In order fired. First 2 shots were sighters.
| 0.782 |
| 1.052 |
| 1.486 |
| 1.508 |