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Posted: 5/13/2009 11:27:19 AM EDT
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The instructions state that I need a virgin piece of brass (no problem) which is trimmed 0.100" below the published trim length for the cartridge. Uh.. ok, how do I trim the .223 brass below 1.75"? All I have is a Lee trimmer which won't go below this... (please tell me I don't need to buy yet another tool to use the Sinclair tool...)  |
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Find someone else to trim the case. Or, cut it off with what ever tool you have, the case mouth doesn't need to be dead square for this measurement.
If you shoot more than one rifle in the same caliber, you should trim the cases to near the trim to length. If not, you damn sure want to keep the long cases segregated for each rifle. |
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Quoted: Find someone else to trim the case. Or, cut it off with what ever tool you have, the case mouth doesn't need to be dead square for this measurement. If you shoot more than one rifle in the same caliber, you should trim the cases to near the trim to length. If not, you damn sure want to keep the long cases segregated for each rifle. So a hack saw and a file would work? |
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Ok, got it, got the measurements, repeated 3 times within a few thousandths of an inch, so I think I'm good. 1.775 1.777 1.778 So by this data, I can accept the "suspect" rounds I have (which are all below 1.770) in my rifle, and if I understand this correctly, I could use 1.770 as my "new" point at which to trim brass so long as the brass is only used in this rifle. Which sounds great to me, I hate trimming... |
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I also notice the instructions for the Sinclair tool mention that Maximum case length should be a minimum of 0.024" shorter than the chamber length. Based on a 1.775" chamber length, this would mean I should never use anything beyond 1.751"... which is a bit ridiculous, I wouldn't even be able to fire factory ammo if this were the case. So does that mean my measurement is off in some way, or that Sinclair is being very conservative and just doesn't want to get sued? Based on what I've read from others, I think my measurement is in the right ballpark for this type of rifle, so I think it's good... |
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Quoted:
Just buy the Stoney Point gage and the respective "screw on" case. So, much easier. 
Then put the Sinclair on E-Bay. LOL! You are mistaken about which tool is being discussed here. They are referring to the Chamber Length gage. This chamber measures the chamber length from the bolt face to the end of the case neck. |
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