Danny Creasy
New member
At least occasionally.
This CZ 452 American's 50 yard groups were beginning to edge up over a half inch in spite of still using the same lot of SK Std Plus that it was previously shooting quarter inch groups with. By the way, I was careful to avoid the poison ivy in the pic
as it has been our creeping tenant for a quarter century.
I carried the .20 caliber Dewey rod along with my cleaning box and three CZs (the American in question, a Special, and an UltraLux) to the range this morning for a cleaning and shooting session. Actually, I cleaned the two open sighted rifles but decided to bag em back up with shiny bores and concentrate on the scoped American.
Here is the cleaning regimen I used today. I started with a wet Hoppes #9 patch. Then, two strokes with a bronze brush. Then, another wet Hoppes patch. Then, three dry patches and next ......... something I haven't used in years. I used a 25 year old tube of Iosso Bore Cleaner. For those unfamiliar with it, it is a white paste (looks like and old fashioned tube of toothpaste) that you work into a patch and after stroking the bore with it a time or two, you run dry patches until they come out white. This takes a while because they start out black and stay black for a while. I think it may be mildly abrasive (not so much as JB). I recalled from years past when I used it, that I may have a bore that was yielding clean patches after another solution and then the first Iossa treated patch would produce a black shoe polish appearance. Some chemical reaction I take it.
Anyway, here are the three 50 yard five shot groups that I fired with rounds from the same lot of SK Std Plus:
I had last zeroed the rifle with some Aguila Std Vel for some silhouette practice after shooting a crappy USBR target with SK last Sunday. The clean cold bore's first group is on the top 1" dot. There really wasn't a discernible cold bore flyer as the five rounds are in a half inch group skirting the edge of the dot. A nice characteristic to say the least.
I took the 6-20X40 Grand Slam down two clicks and over three clicks and shot the second dot. A sweet group but a bit to the right.
I went back left two clicks and then right one (a fine adjustment method oft recommended by friend Jim Watson) and shot the bottom dot. When I traded for this rifle about five years ago it simply would not produce groups like this with any ammo. The previous owner had done a bang up job smoothing the action and installing a Brooks Trigger Kit (13 ozs) but the barrel made serious contact with the barrel channel. I used a dowel rod wrapped with sandpaper and free floated the barrel. It improved accuracy some at that time but the rifle seems to have finally come into its own with this brick of SK Std Plus. And, the Grand Slam glass isn't hurting anything either.
By the way, I would say that the rifle has had about 300 rounds of Aguila Std Vel and about 100 rounds of SK Std Plus fired through it since the last cleaning.
This CZ 452 American's 50 yard groups were beginning to edge up over a half inch in spite of still using the same lot of SK Std Plus that it was previously shooting quarter inch groups with. By the way, I was careful to avoid the poison ivy in the pic
as it has been our creeping tenant for a quarter century.
I carried the .20 caliber Dewey rod along with my cleaning box and three CZs (the American in question, a Special, and an UltraLux) to the range this morning for a cleaning and shooting session. Actually, I cleaned the two open sighted rifles but decided to bag em back up with shiny bores and concentrate on the scoped American.
Here is the cleaning regimen I used today. I started with a wet Hoppes #9 patch. Then, two strokes with a bronze brush. Then, another wet Hoppes patch. Then, three dry patches and next ......... something I haven't used in years. I used a 25 year old tube of Iosso Bore Cleaner. For those unfamiliar with it, it is a white paste (looks like and old fashioned tube of toothpaste) that you work into a patch and after stroking the bore with it a time or two, you run dry patches until they come out white. This takes a while because they start out black and stay black for a while. I think it may be mildly abrasive (not so much as JB). I recalled from years past when I used it, that I may have a bore that was yielding clean patches after another solution and then the first Iossa treated patch would produce a black shoe polish appearance. Some chemical reaction I take it.
Anyway, here are the three 50 yard five shot groups that I fired with rounds from the same lot of SK Std Plus:
I had last zeroed the rifle with some Aguila Std Vel for some silhouette practice after shooting a crappy USBR target with SK last Sunday. The clean cold bore's first group is on the top 1" dot. There really wasn't a discernible cold bore flyer as the five rounds are in a half inch group skirting the edge of the dot. A nice characteristic to say the least.
I took the 6-20X40 Grand Slam down two clicks and over three clicks and shot the second dot. A sweet group but a bit to the right.
I went back left two clicks and then right one (a fine adjustment method oft recommended by friend Jim Watson) and shot the bottom dot. When I traded for this rifle about five years ago it simply would not produce groups like this with any ammo. The previous owner had done a bang up job smoothing the action and installing a Brooks Trigger Kit (13 ozs) but the barrel made serious contact with the barrel channel. I used a dowel rod wrapped with sandpaper and free floated the barrel. It improved accuracy some at that time but the rifle seems to have finally come into its own with this brick of SK Std Plus. And, the Grand Slam glass isn't hurting anything either.
By the way, I would say that the rifle has had about 300 rounds of Aguila Std Vel and about 100 rounds of SK Std Plus fired through it since the last cleaning.
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