I had a TL Classic hunter action, same as the 704 that LAW uses. It was complete garbage. Multiple trips back to TL for correction. They wouldn't accept returns because the machinist says it lad lug setback.....after 7 rounds of otc 7mag ammo. Maybe you're experiencing the same crap I did. The ideal behind swapping bolts being very risky, is that the distance from the bolt face to the front lug, and thickness of lug abutment all determines proper headspace. You're particular rifle could be different headspace and could be 20-30 thousandths with someone else's bolt, case head separation on high pressure/charge ammo like a 28N could cause serious injury. I personally will never buy another Law or TL action again. There are just a lot better options available in a similar price bracket.