Absolute junk - Birchwood Casey Shooting Rest Weight Bags

I bought the first one and it arrived in a badly battered box and the bag itself was also damaged. I returned it and OP replaced it immediately. I took it to the range today and it disintegrated from the blow back from a pistol with a muzzle brake. I have an Armageddon bag that I paid twice as much for and it is still in fine shape after lots of heavy use. I also have sand bags my widfe sewed with heavy canvas material that work with heavy use for years. This BC product is horrible junk.