That sucks, and is ironic that your having a manufacturing defect issue with your Accumark... At least Weatherby offered to look at your's.
I bought a brand new Accumark .257 Wby back in 2008... I took it to the range, zero'd it with my brand new Zeiss 3-12x56 FFP scope... Shot a beautiful pin-wheel cold-bore shot. Got her dialed in, and then over the next 5-6 years I only shot a single shot, or a 3-shot group at the beginning of season to check zero, before taking it hunting, and then shot a few deer each year with it. So, it took me quite a while to get to 50-75 rounds down the bore. At around 50-75 rounds I noticed that it started tossing fliers during the 3-shot groups... Then it started tossing every shot after the cold-bore shot. At first I figured either the load, or atmospheric changes/weather/temp, or something strange was causing the issues. After a while it persisted, so around 2014 I took it to my gunsmith who borescoped it, and told me the barrel was caving in (manufacturing defect). He recommended I call Weatherby to get it fixed. So I did... They pretty much (in churched-up terms) called me a liar and told me to screw-off. So, I got rid of the gun, bought another Rem 700, and been happy since. I wasn't mad about the rifle being a lemon, as that happens with every brand. I was ****ed at how they treated me when I brought their ****** barrels to their attention. After MUCH research, I found that sometime in the mid-2000's Weatherby had stopped using the same cut-rifled Krieger barrels they had always used in the Mark V series rifles, and had started using MUCH cheaper and inferior button-rifled Criterion barrels...And didn't bother to tell anyone, hoping to improve their profit margins, while steadily climbing the MSRP's of all their rifles.
So, that's why I say Weatherby is living off a name. They no longer take pride in the rifles they build, now it's all about numbers, profit margins, board members, and lining their own pockets at the expense of the end-product the customer gets.