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Normal Topic 25-20ss,28-30s 300mp load data (Read 3336 times)
jonskorepa
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25-20ss,28-30s 300mp load data
Dec 21st, 2014 at 12:46pm
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rifle 44 1/2 cpa stevens. I would like 300mp starting  load imformation. Thanks for any help. Jon
  
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frnkeore
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Re: 25-20ss,28-30s 300mp load data
Reply #1 - Dec 21st, 2014 at 12:54pm
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I ran a QL for Waterman with 4227 and it was only 8300 psi for 11.6 and 1308 fps. 300MP is slower and you can start at 13.0 gr.

You'll need a chronograph to make sure you know where you are. With a 44 1/2, you won't need to worry about to much pressure, just to much velocity.

Frank
  
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JLouis
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Re: 25-20ss,28-30s 300mp load data
Reply #2 - Dec 21st, 2014 at 2:07pm
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I would not try 13 grains in the 25!
  
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frnkeore
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Re: 25-20ss,28-30s 300mp load data
Reply #3 - Dec 21st, 2014 at 2:11pm
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Watermans data was a 28/30, only.

Frank
  
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jonskorepa
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Re: 25-20ss,28-30s 300mp load data
Reply #4 - Dec 29th, 2014 at 3:42pm
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Frank what would you sugest for the 25-20ss 300mp start load? thank you for your help. jon
  
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jeffer1942
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Re: 25-20ss,28-30s 300mp load data
Reply #5 - Dec 30th, 2014 at 4:26pm
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What primers would you recommend using for both the .25 and the .28?  J Louis:  what do you suggest ?

Jeff
  
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