Accurizing 22 long rifle

IMO they are really not worth the money. I have tried sorting by rim thickness and it didn't seem to do too much. I don't think weight sorting does anything becuase although there are differences in weight it could just be the weight of the bullet or the casing, and not the powder which is generally what you want to sort into groups.

Having siad that I have heard of people who have had good luck with sorting by rim thickness and they claim they have shot better after rim sorting. Of course, that could be all phycological ;).

There are many other variables that are going to affect how well (or bad :eek:) you shoot other than rim thickness. Wind, humididty, temperature, ect really affect how accurate a gun is, and the big one - the shooter. I think for a start that you would just be better off to try out a bunch of different types of ammunition and see which one works best for you. Try some target ammo as well like Lapua superclub and you will be quite surprised.

If you really want to get into the ammo testing thing order several differnt lot numbers of a given brand (i.e. Eley Match EPS) and see which lot shoots the best :)
 
I tend to agree w. cz. I've tried sorting by rim thickness, and did not see any difference in my groupings. Also tried weighing them; sorted Am Eagle by weight and saw no diffence even though the weights were substantially different.
Agree again, the variables outdoor are substantial. Where I shoot it does not even pay to go from Eley Target/Club to EPS, etc. the wind is too much of a fctor to worry about 1/4" difference.
It is a good exercise to try various ammo and match up the ammo to the rifle. Try as best to shoot under calm conditions and keep good records to digest afterwards.
 
You will gain exactly "squat' by sorting quality rimfire ammo, either by weight or by rim thickness. BUT......Run of the mill, inexpensive, bulk-type ammo may be different. I have tried using both methods on some Standard velocity PMC that I had a couple of bricks of. When shooting at targets, the stuff that I applied both methods to did shoot tighter groups in a 20 group sample. That being said, it was a lot of work to get results somewhat inferior to those I could have got from just shooting a good quality round. I don't bother these days. Just shoot a good quality round (Super Club), like CZ452 says. Regards, Eagleye.
 
The only thing that I have seen that makes a diff with my two Cooey (YUP, not Walthers or Anschutz) is the brand and bullet weight. Both prefer standard velocity 40Gr. bullets (not hollowpoints) with a small preference for Winchester brand although the CCI really come close. Best group from my scoped single shot Cooey was 1.375" at 50 Meters. Not Olympic precision but it's my first rifle and I paid it $39.95 back in 1962 (NEW) !!
 
i have never gone to the extent of measuring the weight of the round and the rimn thickness.
accurizing for me is pumping as many different brands of .22 ammo through each rifle to see which groups the best ( i like to use 60 meters)
my next step is to beg, borrow or steal a machine rest.
 
Well, I'm a believer in sorting by rim thickness. Im not talking about sorting Eley rounds, I'm talking about sorting basic, inexpensive stuff like Federal Champion. I believe that I get less flyers and so tighter groups by doing this. It is also interesting to see which brands or lots are more consistent because it says something about the care used in manufacturing.
 
Or, you could "cheat", and simply smash (read: re-size) the bullets to the point where they are wide enough in diameter to hug the rifling. This is the thinking behind the "Paco tool".

This is also the thinking behind those who buy the Lapua L (.224 in diameter) as oppose to the Midas M (.223 in diameter) without testing the M in their rifles/handguns first - they simply assume that the larger diameter of the L will automatically add to accuracy.

Oh, and just to show that I'm not dodging the "true theme" of this thread (rim-thickness-measuring tools), here's a website of semi-dubious origin:

http://www.gun-tests.com/performance/sept96rimthickness.html

There you go.
 
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