Thread: Best zero for a .357 rifle.

Originally Posted by hotbarrels

I've sighted min in at 75m. 75m zero using 125gr HP at 2220fps gives you a trajectory peak of 43mm high at 40m, 95mm low at 100m.

That cant be right. As stubby as a 357 125 grain is, a 22LR with CCI stingers at 1600fps has better trajectory than that. And both bullets have similar ballistic coefficient.

The trajectory just off the velocity and BC is going to better than most 22WMR loads.

Off a shooting calculator

125 HP Federal JHP, ballistic coefficient .140.

100 yard zero
Peak height less than 1 "
Drop 4" at 150 yards.

Personally I zero my 357 for about 100 yards like this. Being a 4 moa red dot and the gun shooting about 3moa I dont try and shoot too far anyway, but I have taken pigs to 150 yards.

All the 1000ftlbs energy minimum stuff the yanks talk about for deer is a little over the top too. At longer range the shock power of the 357 drops off yes but its still killing. For the record the 357 can be pushed to 1500ftlbs at the muzzle from strong actions like the Marlin 94 and Rossi/win 1892 too.

Originally Posted by sixtus

That cant be right. As stubby as a 357 125 grain is, a 22LR with CCI stingers at 1600fps has better trajectory than that. And both bullets have similar ballistic coefficient.

The trajectory just off the velocity and BC is going to better than most 22WMR loads.

Off a shooting calculator

125 HP Federal JHP, ballistic coefficient .140.

100 yard zero
Peak height less than 1 "
Drop 4" at 150 yards.

Personally I zero my 357 for about 100 yards like this. Being a 4 moa red dot and the gun shooting about 3moa I dont try and shoot too far anyway, but I have taken pigs to 150 yards.

All the 1000ftlbs energy minimum stuff the yanks talk about for deer is a little over the top too. At longer range the shock power of the 357 drops off yes but its still killing. For the record the 357 can be pushed to 1500ftlbs at the muzzle from strong actions like the Marlin 94 and Rossi/win 1892 too.

You are correct! Too used to converting imperial to metric, I took the ballistics table values in cm and multiplied them by 25.4 thinking they were inches

That said, I still sight in at 75m because I'm using open sights and its about the best I can do with my eyesight.

Originally Posted by Sh00ter

.................................................. .................................................. .................................................. .................................................. ....I sold a bunch of junk to the govt for silly money and thought it was a point of principle to turn "not a gun" into a gun, just doing my bit to keep NZ safe

If you lived near me I would buy you a beer for doing something like that, simply AWESOME

With that comment He's got me rummaging through my parts boxes.