LocoPatrick
12-14-2014, 12:43 AM
Howdy, Folks,
Longtime lurker. First post.
I have a Lyman 90gr .358 mold, and have created some loads for my wife's Ruger LCR in .38sp. The LCR hits dead on with factory ammo, usually 124gr loads. I wanted to try and create a lightweight load for my wife to get used to shooting and become proficient.
The loads chronograph at ~750fps, but they hit 3" or 4" low at 7 yards. 7 yards isn't enough distance to get significant bullet. I have a theory as to what might be causing this, and I want to see if you agree.
A firearm begins recoiling as soon as the bullet starts to move (equal and opposite reaction). The sights are calibrated to a heavier bullet. With the lighter bullet, the revolver recoils less, leading to less muzzle flip, meaning the revolver is not pointing as high when the bullet leaves the muzzle as when a heavier load is used. Therefore, the point of impact is lower.
Does this hold water with other people's experience?
Longtime lurker. First post.
I have a Lyman 90gr .358 mold, and have created some loads for my wife's Ruger LCR in .38sp. The LCR hits dead on with factory ammo, usually 124gr loads. I wanted to try and create a lightweight load for my wife to get used to shooting and become proficient.
The loads chronograph at ~750fps, but they hit 3" or 4" low at 7 yards. 7 yards isn't enough distance to get significant bullet. I have a theory as to what might be causing this, and I want to see if you agree.
A firearm begins recoiling as soon as the bullet starts to move (equal and opposite reaction). The sights are calibrated to a heavier bullet. With the lighter bullet, the revolver recoils less, leading to less muzzle flip, meaning the revolver is not pointing as high when the bullet leaves the muzzle as when a heavier load is used. Therefore, the point of impact is lower.
Does this hold water with other people's experience?