I will try to make my question clear and concise, but I understand there are MANY variables involved.
If a Blackhawk is sighted in so that a 125gr self-defense .357Mag round impacts the target at about .7" low of POA [at 7 yards], how does changing the weight of the bullet affect POI?
Three 'basic' weight scenarios:
125Gr self-defense hallow point
158gr SP ammo [like S&B]
180gr RNFP 'bear' load [Like HSM].
I can find ways to plot the ballistic trajectory for each one, but each one of those systems asks what distance it is 'sighted in' at.
My goal is to set up the revolver to be very flat POI from 15-25 yards with 158gr strong loads [not cowboy stuff].
However, if using 125gr fast self defense, will it strike the target lower or higher, usually?
Will firing a 180 gr strike the target lower/higher than the POI for 158 grain.
Again, I am NOT talking of 158 wadcuttters or cowboy lead.
My .357mag all-purpose round of choice is the S&B 158 SP round.
Unfortunately, my LGS was bought out by another, and the range there changed its rules, to ban metallic rounds, even though the original LGS/range designed the range to handle it.
This is about consistency of rules at both indoor LGS/ranges that they own, and the only indoor ranges in town.
Thus, I am trying to use your comments to allow me to fine-tune my height of impact based on other ammo I have.
I have 500 rounds of the S&B, so I don't want to just buy new 158gr rounds, thank you very much.
If a Blackhawk is sighted in so that a 125gr self-defense .357Mag round impacts the target at about .7" low of POA [at 7 yards], how does changing the weight of the bullet affect POI?
Three 'basic' weight scenarios:
125Gr self-defense hallow point
158gr SP ammo [like S&B]
180gr RNFP 'bear' load [Like HSM].
I can find ways to plot the ballistic trajectory for each one, but each one of those systems asks what distance it is 'sighted in' at.
My goal is to set up the revolver to be very flat POI from 15-25 yards with 158gr strong loads [not cowboy stuff].
However, if using 125gr fast self defense, will it strike the target lower or higher, usually?
Will firing a 180 gr strike the target lower/higher than the POI for 158 grain.
Again, I am NOT talking of 158 wadcuttters or cowboy lead.
My .357mag all-purpose round of choice is the S&B 158 SP round.
Unfortunately, my LGS was bought out by another, and the range there changed its rules, to ban metallic rounds, even though the original LGS/range designed the range to handle it.
This is about consistency of rules at both indoor LGS/ranges that they own, and the only indoor ranges in town.
Thus, I am trying to use your comments to allow me to fine-tune my height of impact based on other ammo I have.
I have 500 rounds of the S&B, so I don't want to just buy new 158gr rounds, thank you very much.