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Something to consider when you are shooting 22lr is that each bullet from different manufacturers has a different type of coating on it. Those coatings are applied to the barrel under firing and require a good cleaning or can be shot out with different ammo.
27yds - 1/2" dots
Prior to shooting these groups, the rifle had approx 350rnds of various different ammo comprising of wolf MT, CCI Sub HP, winchester sub HP, CCI blazer, and about 5 other brands of ammo. Then I put a new target up and decided to illustrate this "seasoning" for you guys.
Each group is 25 shots fired at 27yds with CCI SV. The group on the left was shot first, followed by a subsequent 25rnd group to the right. You can plainly see the second group is much better. The two bullets on the left edge of the group on the right were called. Shooting off a wobbly table has its challenges!
As you can see, it takes a solid 25rnds or so after switching to a different ammo for the coating in the barrel to change out. Once it does, it will start to settle in. So don't buy some new ammo, fire 10rnds, and expect to see how it will perform. It can take as much as 50-100rnds of a specific ammo before it will be shooting its best. It's always a good idea to start with a clean bore and if you switch ammo, clean the bore again.
It is also noteworthy that when switching from ammo with a heavy waxy coating such as that on CCI SV to a light oily lube such as is on wolf MT, it will take a lot more firing to get the wolf to settle in. Going from wolf MT to CCI SV doesn't take much firing at all. Again, for the most consistent results, simply clean the bore when switching ammo.
On a clean bore, you will still need to "season" the barrel with multiple shots before it will come in nicely.
27yds - 1/2" dots
Prior to shooting these groups, the rifle had approx 350rnds of various different ammo comprising of wolf MT, CCI Sub HP, winchester sub HP, CCI blazer, and about 5 other brands of ammo. Then I put a new target up and decided to illustrate this "seasoning" for you guys.
Each group is 25 shots fired at 27yds with CCI SV. The group on the left was shot first, followed by a subsequent 25rnd group to the right. You can plainly see the second group is much better. The two bullets on the left edge of the group on the right were called. Shooting off a wobbly table has its challenges!
As you can see, it takes a solid 25rnds or so after switching to a different ammo for the coating in the barrel to change out. Once it does, it will start to settle in. So don't buy some new ammo, fire 10rnds, and expect to see how it will perform. It can take as much as 50-100rnds of a specific ammo before it will be shooting its best. It's always a good idea to start with a clean bore and if you switch ammo, clean the bore again.
It is also noteworthy that when switching from ammo with a heavy waxy coating such as that on CCI SV to a light oily lube such as is on wolf MT, it will take a lot more firing to get the wolf to settle in. Going from wolf MT to CCI SV doesn't take much firing at all. Again, for the most consistent results, simply clean the bore when switching ammo.
On a clean bore, you will still need to "season" the barrel with multiple shots before it will come in nicely.