I am not good with full stock inlets. I have done two. The first had the tang and a barrel groove cut. The other was a flat top. The first has shot okay, the second one shot very well. These are both LRBR stocks. My own personal ones. I'd never do an inlet for a customer.
The first was for my light gun. Being my very first full inlet I made mistakes. The biggest was not inletting deep enough. I had the load port parallel with the stock, which put the ejection port about .250" high. I finally got everything fixed on my milling machine last weekend, so I decided to fix that stock today.
I started out by leveling the stock in the mill. I zeroed the quill dial just touching the first pillar. I decided to take a .100" cut in the pillars with a 3/8"
end mill at the max rpm of my PM 833T, which is 1500 RPM. I started into the cut, it was rough, and I stopped. I slowed the speed down to 800 rpm and the depth to .050." It cut fine, then I remembered that I had made steel pillars for this stock, not aluminum.
Well, I cut both pillars down .250", and then put the 1.5" ball cutter in. That was a mistake. It's only my heavy guns with their 1.45" barrels that need my big ball cutter. The light barrel starts at 1.25 for 5" then straight tapers to .9".
So I over cut everything. Oh well, I can fill all that back in with Marine Tex when I bed it. I am decent at bedding......at least I get them stress free and they look okay.
I think I am a tad bit deep with new inlet, but so am going to run with it. It isn't pretty right now, and I have a couple more relief cuts to make--for the load port and the bolt release. I'll do those in the mill, maybe I can make them look okay.
So here is the roughed in and overdone new inlet. I'll post final pics when I get it done next week. Maybe I'll have it painted if I do a good enough job. Regardless, I do expect it to shoot better with the lower CG.
The first was for my light gun. Being my very first full inlet I made mistakes. The biggest was not inletting deep enough. I had the load port parallel with the stock, which put the ejection port about .250" high. I finally got everything fixed on my milling machine last weekend, so I decided to fix that stock today.
I started out by leveling the stock in the mill. I zeroed the quill dial just touching the first pillar. I decided to take a .100" cut in the pillars with a 3/8"
end mill at the max rpm of my PM 833T, which is 1500 RPM. I started into the cut, it was rough, and I stopped. I slowed the speed down to 800 rpm and the depth to .050." It cut fine, then I remembered that I had made steel pillars for this stock, not aluminum.
Well, I cut both pillars down .250", and then put the 1.5" ball cutter in. That was a mistake. It's only my heavy guns with their 1.45" barrels that need my big ball cutter. The light barrel starts at 1.25 for 5" then straight tapers to .9".
So I over cut everything. Oh well, I can fill all that back in with Marine Tex when I bed it. I am decent at bedding......at least I get them stress free and they look okay.
I think I am a tad bit deep with new inlet, but so am going to run with it. It isn't pretty right now, and I have a couple more relief cuts to make--for the load port and the bolt release. I'll do those in the mill, maybe I can make them look okay.
So here is the roughed in and overdone new inlet. I'll post final pics when I get it done next week. Maybe I'll have it painted if I do a good enough job. Regardless, I do expect it to shoot better with the lower CG.
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