- Sep 3, 2015
I have a Howa 1500 chambered in 6.5 Creedmoor. I recently took a LR class and needed to buy some brass in a hurry so I would not have to go home after day one and reload for day 2. Anyway, the only thing I could get at the time, and have it in time, was Lapua SP or Hornady. I went with the Lapua SP. Because these were virgin and I had never used Lapua brass before I reduced my load from my normal load with ADG and Hornady 147 eld-M. I don't have my book in front of me but I was getting ~2630 fps with the reduced load, so not a stiff load by any means. This rifle has never pierced a large primer, even when I was doing pressure tests and probably went way hotter than I should have, 3k, granted that was with Unicorn Dust so it was okay. Anyway, shooting the new Lapua brass with reduced loads I've gotten several pierced primers. I've used both CCI 400 and Winchester WSR and both have been pierced. The primers are not flattened at all. If I shoot one of my normal loads with the large primers, CCI 200, on the same range trip, no pierced primers. I've seen some others mention replacing the firing pin with a small pin but when I do a search for a small pin for a Howa, nothing comes up. Is that the avenue I need to research or is there something else going on? Do I just sell my once fired Lapua brass and buy more ADG?