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| One of Us |
How fast or slow as the case may be should you driver a chambering reamer, My lathe will only go down to 70 turns. Being a gear head I don't have back gear. Never rode a bull, but have shot some. NRA life member NRA LEO firearms instructor (retired) NRA Golden Eagles member | ||
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| One of Us |
Reamers don’t need to be run as slow as many people would like you to believe. Call Dave Kiff at Pacific, Clymer,or Dave Manson and ask them what speed they suggest...it will be much faster than 70 rpm. | |||
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One of Us |
they're High speed steel and can tolerate 50 surface feet in 4140 steel....calculate the RPMs to be about 400 RPM for most cartridges. I'd still keep them to 100 rpm or less to avoid chatter. /////////////////////////////////////////////////////////////////////////// "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery." Winston Churchill | |||
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I start out at 190 about half way in I drop to 140 and then cut the last quarter of an inch at 108. There's never any reamer chatter because the setup is rigid, 4 jaw chuck bore dialed in. Timan | |||
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one of us |
I run at 90 RPM's  Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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| One of Us |
If you run reamers too slow they are going to chatter and not cut a smooth chamber. | |||
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| One of Us |
I normally run my reamers at 105-175 RPMs untli the last .010 then I speed it up to 610 RPMs. Get great chambers. I use piloted reamers with a floating reamer holder and a high preasure flush system with extreame preasure coolant. Longshot | |||
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| One of Us |
Gee that's too bad. Say like 60 rpm with a feed rate of about .030 per rev all hung out with a super long light contour barrel in f!@#$%^g steady rest, It's like trying to shove a reamer into a piece of spagetti. Damn right it's going to chatter. The barrel flexes between the chuck and the steady rest as you feed the reamer in. | |||
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| One of Us |
LOL.......... | |||
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| One of Us |
Reamers don't chatter because of barrel compliance. It is because of reamer compliance. That is why I hold the tap handle with a pipe that reacts to the cutting torque, and that pipe tranfers the torque to the ways. I lift the pipe with my compliant finger to check for torque. The reamer always chatters getting started. | |||
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| One of Us |
Hey as long as you get it cut and its right in the end. point B is point B. Nobody Really cares how you get there, just as long as you get there, and it's correct after you get there. Timan | |||
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Thanks for all the information I knew you guys were full of it (information that is). Now as soon as they ship my tooling back to me I will finish the project. Never rode a bull, but have shot some. NRA life member NRA LEO firearms instructor (retired) NRA Golden Eagles member | |||
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| One of Us |
Thanks for all the advise got the barrel threaded and chambered, now for the next part the stock. Never rode a bull, but have shot some. NRA life member NRA LEO firearms instructor (retired) NRA Golden Eagles member | |||
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| One of Us |
Reamers don't chatter if you are doing everything right. 1. Correct and rigid set up. 2. Correct cutting speed and feed 3. Good coolant and frequent cleaning 4. Good floating reamer holder 5. Most importantly piloted, sharp, reamer 6. Patients Longshot | |||
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| One of Us |
Is there such a thing as using two or three steady rests? | |||
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