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Post by twomoons on Jul 20, 2012 11:18:59 GMT -5
Here is a dandy tool to help make good groups with any ammo but especially with bulk ammo. This is a rim guage to sort 22 ammo by rim thickness. The bulk stuff especially can vary up to 2 thousnads or more and if you shoot it in batches with all the ammo matched to thickness you will get tighter groups. This one was made with a cheap dial indicator and scrap aluminum from the junk drawer. Without the guage Federal bulk ammo will shoot into about 3/4 to 1" at 50 yards and by gaugng the rims I can get under 3/4" consistantly. Attachments:
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Post by Jack on Jul 20, 2012 12:12:09 GMT -5
Nice rig, Twomoons. I may have to try cobbling up something like that.
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Post by jmarriott on Jul 20, 2012 21:02:36 GMT -5
Yes i have a few of those cheap dial indicators. I have been known to weigh them on a scale before. Lots of varation in weight alone on the lead nose rounds.
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Post by Purebred Redneck on Jul 21, 2012 19:49:33 GMT -5
This is a little over my head So do you end up with 2 different batches - superior and inferior? What is the likelyhood of the inferior batch shooting better in a different gun?  |
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Post by jmarriott on Jul 22, 2012 2:38:28 GMT -5
I shoot all the ones that weigh the same weight. It seems that you can tell alot via weight. The bullet right grain, the powder correct charge Now rim thickness.
Some rounds like the winchester 333 or 555 bulk packs all weight the same. My only gun that likes those 38 grain holowpoints is the marlin and it likes about anything. They are clean and not waxy. they are copper plated and the marlin is a microgroove so maybe they like each other.
I also think that some of the bulk packs are already the round a bit out of spec over the 50 round boxed ones. Maybe not but the seem to be.
Back when they made guns like a k22 smith when the rim of the cylinder has been milled out and the round rest in a cavity it can make a heck of a difference. Others not so much.
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