I would like to vent a little...
I little over a year ago I started this thread: Rifle cartridge "headspace" on case mouth
I wanted to build a .510 caliber subsonic/suppressed rifle using my Savage LA, and decided to go with the 300 Ultra Mag case cut down. I have seen two cartridges similar, the .50 Razorback and 500 RAM. Getting some info on anything like this is like pulling teeth. The guys that make the Razorback are from Arkansas and not too far from me. I called them to have a rifle put together but was told it would be at least two years before he could even think about it, too busy making 300 Blackouts. The next person I tried is a fella on this site, his buddy built one for himself. He has youtube video's about it and one of them posted here about hunting some antelope with it. The problem is they were not exactly helpful, at all. I have tried messages and emails on several other sites he visits, as well as his own business site. I guess I'm on my own.
After a 9 month wait my suppressor paperwork came in and two months later the barrel arrived from Kreiger (yep that's 11 months). A month or so later, the builder did all the prep and assembly. I got to pick it up the weekend after Christmas, but it isn't exactly ready to go.
For starters, a loaded round will not chamber correctly! The reamer was made too small (diameter and throat length). I have to seat the .50 BMG projectiles so far into the case that I might as well have made the case length almost a half inch shorter. Then the brass needs to be reamed and turned so much that it is rediculous. I wouldn't even think about firing anything but lower subsonic loads. What makes me mad is that I was going to send a dummy round to have the reamer based off of but the builder spoke with PT&G and he said they had it worked out and the dummy wasn't needed. Last week, after trying to call for a couple weeks, I got a text from him that he ordered another reamer. This is after we agreed on me sending in a dummy round to make sure it is right this time. I have been trying to call PT&G all week to make sure they don't build it without talking to me first.
When I first picked up the rifle I thought "That is the longest 20" barrel I've ever seen!". There is a reason for that, it's 25" long. What I wanted was 16", but told him no longer then 20 just in case something got messed up and that would leave several inches to play with. Remember, this is mostly going to be for subsonic loads. Now it's longer than my .338 Edge. Even the twist isn't what I ordered, it's a 1-8" and I said 1-9". Whatever, I can handle that. Just wonder how it's gonna treat full power cast bullets.
The rifle was supposed to have been coated, but he knew it wasn't right and said when we get it shooting correctly he will put a coat on it.
When I picked it up the trigger wasn't working correctly. Several years ago I replaced the factory with a Rifle Basixs. He messed with it for a while and I have too, it will not cock unless the safety is on. JUST FREAKING GREAT!
He builds several suppressors every year but this was his first .510 caliber. He basically just built one of his .308 cans but with a larger channel. I have loaded and shot about a dozen very low velocity rounds through it and it doesn't have enough internal volume to get the noise level down to where it should be so he is going to build me a larger/longer one and scrap this one.
I shot several loads through it using different primers and bullets, the accuracy is the worse I ever seen. And I mean EVER. Hope that changes in the future.
I had CH4D build me some dies, the bullet seater die isn't exactly working properly. My gun builder was supposed to make me a new one using the VLD stem that came with the CH4D die, but he hasn't.
Needless to say, I'm not very happy. I'm actually pretty pi$$ed off about this whole thing. It'll be another month or two, at least, till this is remedied. I have actually thought about getting a builder on this site to help me fix this, but I've got a lot of money invested in this project and just want my builder to make it right.
Thanks for letting me vent. Did it help? Not really