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Sorting .22LR Ammo (Read 12011 times)

SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Sorting .22LR Ammo May 30^th, 2014 at 7:32pm	Print Post
	Which is it? Sort by weight or sort by rim-thickness for .22LR ammo.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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ron Oldtimer Offline Posts: 576 Location: Augusta Maine Joined: Nov 15^th, 2009	Re: Sorting .22LR Ammo Reply #1 - May 30^th, 2014 at 8:14pm	Print Post
	I sort by rim. ron


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colo native Oldtimer Offline Posts: 760 Location: Barren Ridge, Va Joined: Dec 27^th, 2007	Re: Sorting .22LR Ammo Reply #2 - May 30^th, 2014 at 8:47pm	Print Post
	RIM....


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: Sorting .22LR Ammo Reply #3 - May 30^th, 2014 at 9:08pm	Print Post
	What is your bin-size when measuring the rim thickness? 0.001", 0.002", whatever? Thanks.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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pdshooter Ex Member	Re: Sorting .22LR Ammo Reply #4 - May 30^th, 2014 at 9:47pm	Print Post
	Bullet runout is considered by some to be the best indicator of accuracy. Gauges are not cheap, but then neither is good 22 ammo


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Lefty38-55 Senior Forum Member Offline Posts: 366 Location: New England Joined: Sep 11^th, 2013	Re: Sorting .22LR Ammo Reply #5 - May 30^th, 2014 at 10:45pm	Print Post
	SSShooter wrote on May 30^th, 2014 at 9:08pm: What is your bin-size when measuring the rim thickness? 0.001", 0.002", whatever? I just started measuring rim thickness. Measured 50 Wolf match and got 27 at '0', 9 @ +1, 8 @ +2, 4 @ +3 and 2 @ -1. Where '0' just happened to be where the gauge was set on the 1st one measured. Without sorting, they were good for a sporadic 1-1/2" or less group at 100-yards. 10 of the 0s printed into a nice rounded 7/8" group last Thursday night, fairly distributed around for the 10-shots, so I might be on to something! Will sort more and post some results.

	All of my single shots shoot one tiny ragged hole with cast bullets ... it's just the following shots that tend to open up my groups ...
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boats Frequent Elocutionist Offline Posts: 7725 Location: Virginia Joined: Apr 23^rd, 2004	Re: Sorting .22LR Ammo Reply #6 - May 31^st, 2014 at 5:47am	Print Post
	I sort by price. Boats


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colo native Oldtimer Offline Posts: 760 Location: Barren Ridge, Va Joined: Dec 27^th, 2007	Re: Sorting .22LR Ammo Reply #7 - May 31^st, 2014 at 6:33am	Print Post
	First the headspace should be known, then sorting rim thickness for groups of same + or - then a testing of run out does help if bench rest shooting is the game.. For formal off hand work (rifle) rim sorting probably is enough.. Boats has a point, altho I have tested several brands of HI dollar 22's and find both rim and runout is some what better.. nuf said..


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: Sorting .22LR Ammo Reply #8 - May 31^st, 2014 at 9:00am	Print Post
	Sorted 505 CCI Green Tag by weight and got 14 bad ones (8 too light, 3 too heavy and 3 with ‘nodules’ on the bullet). Not too bad for what was $4.50/50 ammo when I bought it two years ago (about double that today when one can find). Am wondering if our rather ‘sloppy’ falling/dropping block actions actually benefit from doing the rim-thickness measurements? I’m interested in stopping the occasional long-distance flier that is well out of the group and am hoping that sorting by weight will do that. Guess I’ll see next time out..

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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Schuetzendave Frequent Elocutionist Offline Retired Ex-Shooter Posts: 4227 Location: St. Albert, Alberta Joined: Jan 28^th, 2005	Re: Sorting .22LR Ammo Reply #9 - Jun 2^nd, 2014 at 5:36pm	Print Post
	Eley does a fabulous job of sorting the Tenex rimfire components. For them the rim is very consistent with only 0.3 grains weight variation. I weight sort them into three .1 grain lots. Anything outside the .3 grain weight range are the flyers that I discard. Even with Eley's fabulous weight sorting you can get one to two per 100 that fall outside the normal weight range. These ones drop out of the group and can cost you the match. 0.1 grain variation in the bullet weight does not effect accuracy; however 0.1 grain variation in powder in a .22 LR can have an impact on accuracy. Poorer quality ammo definitely needs to be sorted by rim thickness.


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frnkeore Frequent Elocutionist Offline Posts: 7611 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Sorting .22LR Ammo Reply #10 - Jun 3^rd, 2014 at 1:54am	Print Post
	Quote: Am wondering if our rather ‘sloppy’ falling/dropping block actions actually benefit from doing the rim-thickness measurements? Here is a idea that I will try on my next 22rf. It could eliminate the rim checking but, who knows for sure. I don't believe it would or could have any safety issues but, againt it will have to be proved out. I will set the head space at .040, .003 short of the standard .043 head space for both sporting and match chambers. The rifle will be my Model 44/45 Stevens so, closing the breech block won't be a issue, either. Frank

	ASSRA Member #696, ISSA Member #339
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Chuckster Frequent Elocutionist Offline Posts: 2306 Location: Colorado Joined: May 15^th, 2008	Re: Sorting .22LR Ammo Reply #11 - Jun 3^rd, 2014 at 9:27am	Print Post
	Frank, Sounds like a good idea and would probably work well. Do you think there would be any chance of a "slam fire" if someone was over aggressive? Chuck


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frnkeore Frequent Elocutionist Offline Posts: 7611 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Sorting .22LR Ammo Reply #12 - Jun 3^rd, 2014 at 11:52am	Print Post
	Chuck, In the case of a 44, 44 1/2, RB and HW, I doubt it. Actions that raise the BB at 90 deg should be a little more gentle in closing the BB and make sure that the cartridge is fully seated before raising the block. I personally (just last month at the match) have raised the BB w/o the rim in the chamber and crushed the rim w/o anything happening. I don't recomend it though Frank

	ASSRA Member #696, ISSA Member #339
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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Sorting .22LR Ammo Reply #13 - Jun 3^rd, 2014 at 2:06pm	Print Post
	I have found best results by weight sorting when I used to compete in the Schuetzen rimfire bench events. Gave up on chasing the best lots off the right machines to remain competitive. Bottom line is the man with the most money wins if one is not finding and buying the best lot for his rifle and buying it by the case. It became a rich mans game and that took all the enjoyment out of it for me. You can run with the cheaper ammo and then sort it but one is simply kidding himself if he thinks it will be as competitive as the good stuff. JLouis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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Seanmp Senior Forum Member Offline Posts: 294 Location: Land O Lakes Joined: May 19^th, 2014	Re: Sorting .22LR Ammo Reply #14 - Jun 3^rd, 2014 at 2:15pm	Print Post
	Here is a fun fact....completely irrelevant to most of us but interesting. If you have some spare change in your pocket you can go to the Eley test facility and they will machine mount your rifle in a test fixture and fire Lot#'s of ammunition through your gun until they find a Lot # that will essentially put 50 rounds in a hole. If you have an Anshutz and they cant find an acceptable lot Anshutz will rebarrel the gun. At that point you have the opportunity of purchasing the rifles expected lifetimes worth of that Lot #

	Sean
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