I just posted this on BR cemtral...
Got some new Lapua brass...
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I recieved my new Lapua brass on Wednesday...and sorted 300 by weight ...283 of them weighed 126gr..8 weighed 126.5 and 9weighed 125.5...I took the 8 heavy ones and the 9 light ones and loaded them and shot a group with the 8 in one auxiliary bull and the 9 in the other one right beside it and got two nice groups in the same area of the bull....would have been same point of impact if using the same point of aim....then when attempting to reload the fired cases the 5 of the 8 heavy cases would not go in the shellholder..!!!!!! ...I figured that the cases were soft and had swelled due to pressure....but they measured just rite....then I measured the extractor groove and found it to be shallow..,not cut deep enough by aprox .005") ---then I measured the 9 "light" ones and found them to be aprox.,on average) .005" deeper than the 283 other cases.....I havent did the water volume test but it looks like the weight difference is caused by the deep or shallow extractor grooves ....I'm bettin that there isnt one lil drop of rain water dif. between the cases..it is in the machine work....the brass seems to be of excellent quality ...the primer pockets are just a lil bit bigger ...I can seat a Federal 205 with less resistance than the lot of brass I have been using for the last 2yrs...no problemm.....Just wandering who at Lapua or kaltron/pettibone to send the ones to that I cant resize...thank good ness the all didnt have the shallow grooves....or they wouldnt be reloadable....
Should I send the cases to Lapua in Europe,,,????))) or call ....not really a compalint just want them to know of the problem and maby do a lil QC improvements....does anyone know the address or e-mail addy...
Check your extractor grooves ....just wanted to head off a problem for everyone else....Roger
Got some new Lapua brass...
--------------------------------------------------------------------------------
I recieved my new Lapua brass on Wednesday...and sorted 300 by weight ...283 of them weighed 126gr..8 weighed 126.5 and 9weighed 125.5...I took the 8 heavy ones and the 9 light ones and loaded them and shot a group with the 8 in one auxiliary bull and the 9 in the other one right beside it and got two nice groups in the same area of the bull....would have been same point of impact if using the same point of aim....then when attempting to reload the fired cases the 5 of the 8 heavy cases would not go in the shellholder..!!!!!! ...I figured that the cases were soft and had swelled due to pressure....but they measured just rite....then I measured the extractor groove and found it to be shallow..,not cut deep enough by aprox .005") ---then I measured the 9 "light" ones and found them to be aprox.,on average) .005" deeper than the 283 other cases.....I havent did the water volume test but it looks like the weight difference is caused by the deep or shallow extractor grooves ....I'm bettin that there isnt one lil drop of rain water dif. between the cases..it is in the machine work....the brass seems to be of excellent quality ...the primer pockets are just a lil bit bigger ...I can seat a Federal 205 with less resistance than the lot of brass I have been using for the last 2yrs...no problemm.....Just wandering who at Lapua or kaltron/pettibone to send the ones to that I cant resize...thank good ness the all didnt have the shallow grooves....or they wouldnt be reloadable....
Should I send the cases to Lapua in Europe,,,????))) or call ....not really a compalint just want them to know of the problem and maby do a lil QC improvements....does anyone know the address or e-mail addy...
Check your extractor grooves ....just wanted to head off a problem for everyone else....Roger
