Procedure for testing different brands of .22 LR

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Procedure for testing different brands of .22 LR

Post by bkincaid on 8/5/2018, 8:26 am

I'm preparing to test my Smith 17 (and some rifles) with various brands and styles of .22 to find the best one for my gun. When you guys perfom such tests, do you clean the barrel when switching from one brand/style to another? Maybe just fire several fouling shots? In the case of a revolver, do you worry about the chambers being properly fouled between groups?

Thanks for any help.

bkincaid

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Re: Procedure for testing different brands of .22 LR

Post by Chris Miceli on 8/5/2018, 8:48 am

some will say you need to have the barrel in the exact same condition for testing each ammo. They mean a spotless chamber and barrel followed by a few fouling shots then test for group. I fire 10 shot groups, pull a dry patch with the patch worm a few times then fire 5 fouling shots. You can repeat the test in a different ammo order again if you like to verify. If i'm testing the same ammo but just different lots i'll just fire a fouling shot or two between lots.
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Re: Procedure for testing different brands of .22 LR

Post by Sa-tevp on 8/5/2018, 11:04 am

This article on testing a 22 pistol at an Eley facility may help. http://www.nxtbook.com/nxtbooks/nra/ssusa_201303/index.php#/22

Most articles on testing I have been able to find online are as maddening in their methodology as actually testing 22. Most of the good data I have found was from the 3 position rimfire rifle target group, and I think that may be due to their closer connection to members in their groups testing at Lapua and Eley and learning how to minimize variables in the testing.
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Re: Procedure for testing different brands of .22 LR

Post by BE Mike on 8/5/2018, 12:49 pm

bkincaid wrote:I'm preparing to test my Smith 17 (and some rifles) with various brands and styles of .22 to find the best one for my gun. When you guys perfom such tests, do you clean the barrel when switching from one brand/style to another? Maybe just fire several fouling shots? In the case of a revolver, do you worry about the chambers being properly fouled between groups?

Thanks for any help.
I think the testing method has more to do with comparing accuracy than the preparation of the barrel/ cylinder.
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Re: Procedure for testing different brands of .22 LR

Post by fc60 on 8/5/2018, 2:32 pm

Greetings,

Years past, I Random Rest tested many 22 pistols.

I did not clean the barrel; but, I did notice that the first two shots down range with a different brand were out of the group. I attributed this to different bullet lubricants.

Once the barrel was "seasoned" with the ammo being tested, three ten shot groups were fired and they were generally quite close in group size.

With the economy ammunition, there will be the occasional "flier" that ruins a good x-ring group.

On the positive side, we did test economy ammo that shot inside the x-ring at 50 yards consistently. Here, we would jump in the car and drive to where we bought the ammo and purchased several more cases of the same lot number.

Cheers,

Dave
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Re: Procedure for testing different brands of .22 LR

Post by Slamfire on 8/14/2018, 9:50 pm

I had my Anschutz rifle tested by Eley and Lapua. I got to watch the Lapua testing. The barrel was not cleaned at any time during ammunition testing. If it is un necessary in a rifle, the only reason I can think of cleaning a pistol barrel, would be due to failures to eject due to a dirty chamber.

I can say, I always shoot two fouling shots out of my rifle at the start of every match. The first two shots, from a clean and oiled barrel, land in a different location from the shots from a fouled barrel.

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