May need some adjustment.
I recently put my rifle in a chassis that uses Accuracy International magazines. I was happy to see a single round loading block on the market that mimicked the fit of an Accuracy International magazine. I was not so happy to find out that the Bob Sled did not fit after I received it. It seemed the block could not quite go deep enough into the magazine well for the magazine catch to snap over the metal tab on the block. So, I decided to make it fit. I sanded on the top of the block hoping it would allow the block to seat deeper and engage the magazine catch. I don't think I made much progress doing that. I finally took a flat file and incrementally filed the tab on the sled, while test fitting multiple times. After a few attempts, I was able to make the sled lock into the chassis. After several loadings with dummy rounds, I would say it works well. However, there is absolutely no excuse for the sled not fitting in the first place. The dimensions of an Accuracy International magazine should have not been difficult to duplicate. You have to wonder if the makers ever actually test their products for fit and function. However, it does work, even though I had to make it fit. I would say if you want a single loading block for your chassis that uses Accuracy International magazines, this will (probably) work. But, be prepared for the possibility that you might have to do some modification.
