Same as the regular .243.
Max length, 2.045"
Trim to length, 2.035 according to Speer.
Hey guys what's the trim length of 243 ai cases?
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Model 12 btv .204 nikon monarch 4-16x50<br />Model 110La 243ai 26"brux 1:8 twist sss comp trigger leupold vx3 4.5-14x40 tack driver!!
Same as the regular .243.
Max length, 2.045"
Trim to length, 2.035 according to Speer.
You'll find most AI cases will shorten slightly after fireforming. I didn't trim new cases but once they were fireformed, I trimmed them to a uniform length dependent on the shortest case in the batch.
+1 i do the sameOriginally Posted by trappst
Got ya thanks Guys
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Model 12 btv .204 nikon monarch 4-16x50<br />Model 110La 243ai 26"brux 1:8 twist sss comp trigger leupold vx3 4.5-14x40 tack driver!!
+2!Originally Posted by calib
Vietnam Vet, Jun 66 - Dec 67
I don't trim untill after fireforming,then just square up the mouths,or .015 +/- less than the measured chamber,with a sinclair chamber length gage.I've
found most brass to be much shorter than the chambers.I never depend on the recomendations for trim length,in the manuals.
Same here. Those little plugs have saved me a lot of time and work.Originally Posted by Joe O
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