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Rifles, Reloading, Optics, Equipment
Muzzleloader Hunting
500 yards
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<blockquote data-quote="ATH" data-source="post: 291521" data-attributes="member: 1656"><p>If you are shooting 150g of LOOSE 777 you are over-charging your rifle. No mass-produced muzzleloader is rated for 150gr loose 777. 777 is about 15% more powerful that blackpower or Pyrodex. Max charge is really around 130gr, which is why I use 130gr with the 325gr FTX. I only use 110gr with the 200SW as accuracy goes away at 115gr or above.</p><p></p><p>The 777 pellets are reduced charge to compensate for the increased power, they are equivalent to pyrodex. If you don't believe me, shoot 3 50gr pellets over a chronograph then the same bullet with 150gr loose powder. The loose powder will be faster due to that charge being about 15% more powerful.</p><p></p><p>The manufacturers have never caught up to the proliferation of new ML powders. They don't provide a rating for BH209 either, they just rate for blackpowder/pyrodex. I doubt the overcharge with 150gr 777 is dangerous but it is technically over the recommended pressure.</p></blockquote><p></p>
[QUOTE="ATH, post: 291521, member: 1656"] If you are shooting 150g of LOOSE 777 you are over-charging your rifle. No mass-produced muzzleloader is rated for 150gr loose 777. 777 is about 15% more powerful that blackpower or Pyrodex. Max charge is really around 130gr, which is why I use 130gr with the 325gr FTX. I only use 110gr with the 200SW as accuracy goes away at 115gr or above. The 777 pellets are reduced charge to compensate for the increased power, they are equivalent to pyrodex. If you don't believe me, shoot 3 50gr pellets over a chronograph then the same bullet with 150gr loose powder. The loose powder will be faster due to that charge being about 15% more powerful. The manufacturers have never caught up to the proliferation of new ML powders. They don't provide a rating for BH209 either, they just rate for blackpowder/pyrodex. I doubt the overcharge with 150gr 777 is dangerous but it is technically over the recommended pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Muzzleloader Hunting
500 yards
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