Bolt handle questions

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12 January 2015, 01:18

faraim

Bolt handle questions

Which makers Oberndorf style bolt handle is the most popular? I picked up one recently and the knob seems to be too small compared to any of the military bolts I have on the bench.

12 January 2015, 03:45

ab_bentley

https://myersarms.wordpress.com/for-sale/

Adam

12 January 2015, 05:40

kcstott

The Leonard Brownell one from Brownell's that or the Talley

13 January 2015, 03:49

montea6b

quote:
Originally posted by ab_bentley:
https://myersarms.wordpress.com/for-sale/

Adam

The unfinished blanks in the photos are shaped differently than the ones attached to a bolt.

13 January 2015, 04:51

Fal Grunt

They are in fact slightly different. The bolt I have pictured is from a worn and torn Oberndorf sporter from 1906.

The bolt handles pictured were machined from a CMM scan of a 1932 sporter that was in mint condition. While I will admit they are not perfect, they are the closest thing I have found. I would love to find one closer.

Nathaniel Myers
Myers Arms LLC
nathaniel@myersarms.com
www.myersarms.com
Follow us on Instagram and YouTube

I buy Mauser actions, parts, micrometers, tools, calipers, etc. Specifically looking for pre-WWII Mauser tools.

13 January 2015, 08:13

Nick Hughes

Half Moon

13 January 2015, 18:38

Glen71

First of all, let me be clear that I can't fabricate, fit, or weld on a bolt handle. I also am not sure I can clearly describe the geometry of a bolt knob, but this is just my observation and opinion as to the shape of many Oberndorf bolt handle copies I have seen. Most of them seem to have a small straight section between the "ball" and the reverse curve transitioning into the shaft of the handle. Original Oberndorf bolt knobs have continuous curves with no straight section between their tangents. Clear as mud, right?

13 January 2015, 19:47

lindy2

quote:
Originally posted by Nick Hughes:
Half Moon

this is what one looks like installed.

14 January 2015, 00:48

montea6b

quote:
Originally posted by Glen71:
First of all, let me be clear that I can't fabricate, fit, or weld on a bolt handle. I also am not sure I can clearly describe the geometry of a bolt knob, but this is just my observation and opinion as to the shape of many Oberndorf bolt handle copies I have seen. Most of them seem to have a small straight section between the "ball" and the reverse curve transitioning into the shaft of the handle. Original Oberndorf bolt knobs have continuous curves with no straight section between their tangents. Clear as mud, right?

That's exactly what I noticed, just didn't have time for a longer comment. Very nice looking by the way. They look a bit like a Talley.

14 January 2015, 04:41

J Wisner

Glen71.

Correct on your view about the many radius all blending in on the Obendorf ball shape.
If I recall my CNC lathe program has 5 or 6 radius's to make that shape.

Also as far I have found the true Obendorf shape is the only .850 ball diameter I know of.

J Wisner

19 January 2015, 06:42

Fal Grunt

And I think it looks great. I have made them manually and can appreciate the work that goes into them. Unfortunately I found that noone wanted to pay me for making them manually.

I believe however, that most people would have the same complaint about yours as mine. The back side is tapered instead of a radius. Mine is actually a radius but due to the insert and tool nose radius it is very minimal.

20 January 2015, 04:03

Fal Grunt

quote:
Originally posted by dpcd:
I have been copying yours all these years.

Ha ha! I would say copying anything I do would be your FIRST mistake!

I would have to agree, I actually like the pear shape.