Go Back   CMP Forums > CMP Sales > CMP Bolt Action Rifles > Mann Accuracy Device
Register FAQ Members List Calendar Mark Forums Read

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 02-27-2014, 05:04 PM
NMC_EXP NMC_EXP is offline
Join Date: Jul 2010
Location: New Mexico
Posts: 297

Originally Posted by Logdog View Post
Does anyone have a picture of the fixture a Mann Device rides in. I have a very heavy base with two fixtures for securing a tube. I bought it 10 years ago near Aberdeen Proving grounds from a gent who said it was a mann device base. I'll post pictures later
Col Brophy's book "The Springfield 1903 Rifles" has a chapter called "Pressure, Velocity and Accuracy Devices". It contains several period photos of machine rests.

On page 223 in a section called "Accuracy Tests" it has a reproduction of a test procedure including the equipment to be used. It states:

Rest "Woodworth: Type -
Mann Type "V" Block**
Rest, Recoil, Accuracy, Cal.30 Ordnance Drawing 49-6-40B

**For cal. .22 cartridges

Further down the procedure says:

"If however the basic Frankford Arsenal rest be available, then only the "V" blocks indicated are need to satisfy the requirement."

Block "V", Recoil, Cal. .30 Assembly Ordnance Drawing D-45100

The way I read it there was a "Woodworth Rest", and a "Frankford Arsenal Rest".

The "V" block fitted the rests interchangably (?). There may have been (2) different "V" blocks: one for .30 cal and one for .22 cal.

You might want to check out the Brophy book and Hatcher's books as well for photos and information.

Also, I believe you can get copies of obsolete Ordnance Drawings from the govt, maybe the National Archives and records Administration?

Good luck

Last edited by NMC_EXP; 02-27-2014 at 05:12 PM.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 02:06 AM.