40-65

wtroper

April 01, 2007 10:27

Last night I acquired a modern Marlin lever that has been rebarreled to 40-65 and was used in the cowboy-action long range shooting. Anyone had experience loading for this round? I am told that simply necking down 45-70 will give me the brass & the load that was suggested was about 32 gr of 4198 behind a soft lead bullet (350 gr????). Any thoughts would be appreciated.

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  shooter93

  April 01, 2007 15:07

  If it's chamberd to the 40/65 Winchester then yes 45-70 brass will work. New brass with the right headstamp is available from Starline though which is probably a better route. Google for load data...it's everywhere for that round.

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  wtroper

  April 01, 2007 18:31

  Thanks Shooter.

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  I.Shute

  April 02, 2007 21:43

  Accurate Loading Guide no. 2 lists this round with 5744 powder for lever action rifles.
  
  260 gr. lead fn- starting- 23.4 grs., 1452 fps. Maximum- 26 grs., 1651 fps.- 20,000 psi.
  300 gr. lead fn- starting- 21.6 grs., 1333 fps. Maximum- 24 grs., 1515 fps.- 19,200 psi.
  
  I would think that modern rifles could use a little hotter loads than these. ?? Don't quote me on this though.

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