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Thread: T/C Contender 45-70

  1. #1
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    Default T/C Contender 45-70

    I need a load with the 300 XTP using IMR-3031

  2. #2
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    Start at 56.0 grain,load 3 rounds,raise 1/2 grain to 56.5 Load 3 rounds,raise 1/2 grain to 57 grain,load 3 rounds,this should give you 9 loads at three diff grains.Go to the range,set up three targets,fire each three shot group at three diff targets,compare groups,don't worry about anything except how well each load groups.
    Hopefully one group will stand out as the tightest ,go with that group.I don't advise under loading below 56 grain,it is possible to have pressure problems doing this.Good luck,hope this helps.

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    Correction...Bullet is not XTP ..Hornady 45cal., 458 dia.,300 gr., HP, #4500

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    What is the length of your barrel?

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    Either way ,a 45-70 is limited in the low end load up to the max load.Using 3031,and your bullet choice,the low starting load suggested is 59 grains of powder,the max load is 61 grains of powder.Looking at that,I would start at 59 grain,and work your way up to max in 1/2 grain increments.
    Load three loads of each like mentioned in previous post,and you will find your best group for your particular rifle without under charging or over charging.keep good records as you shoot your three shot groups,an easy way to keep your loads separate is to load the first three rounds at 59 grains,using a black marker,write the powder charge on the side of each brass,doing the same on all loads as you work you loads up in 1/2 grain increments .
    You may already do things this way,if not ,I hope it helps you find your best load.

  6. #6
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    23 inch..I have been reloading for over 50 years..currently load for over 40 calibers...You can always learn something new....I settled on 52...way too much recoil I that light rifle....It filled the case pretty well..The load will be used in our primitive season

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