Triple 7 starting point

Bowtie747

FNG
Joined
Jul 11, 2024
Messages
31
Hey guys building a new muzzleloader load today. Barnes 290 TMZ will be the bullet. Or the .45xtps from hornandy.

Anyways what’s a good starting grains to shoot with this stuff? I’m used to blackhorn 209 which I loved but not enough to spend 90$ for 8 ounches on.
 

Hnthrdr

WKR
Joined
Jan 29, 2022
Messages
3,533
Location
The West
I’ve started at 100 grn by volume and then adjusted up or down depending on group size, I would shooting 300 grn Thors with 90 grn by volume of 777 and grouping about 2” at 100 yards
 
Joined
Mar 2, 2022
Messages
868
What are you hunting? Which rifle and what grain weight XTPs?

90-115 grV of 777 is the range within which you’ll likely find a good load. Maybe start with 100 grV as Hnt says.
 
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Bowtie747

Bowtie747

FNG
Joined
Jul 11, 2024
Messages
31
What are you hunting? Which rifle and what grain weight XTPs?

90-115 grV of 777 is the range within which you’ll likely find a good load. Maybe start with 100 grV as Hnt says.
Deer and a cva accura of some sorts. IDR the model. I think the xtp are 240 but like I mentioned the 290s Barnes tmz are what I’m hoping to use. Depends what the gun wants of course
 
Joined
Nov 30, 2012
Messages
1,267
Location
Northern Idaho
Hey guys building a new muzzleloader load today. Barnes 290 TMZ will be the bullet. Or the .45xtps from hornandy.

Anyways what’s a good starting grains to shoot with this stuff? I’m used to blackhorn 209 which I loved but not enough to spend 90$ for 8 ounches on.
My suggestion would be to use the same load you for BH in your rifle.
 
Joined
Apr 4, 2024
Messages
30
Location
Ohio
If using loose powder start at 100 grains by volume and then adjust by 5 grains up or down based off of your groupings until you hit a good group. Also, it really depends on what ranges your hunting at. My Ohio ML shoots just fine with 100 grains of pellet 777, because my max range is 150 yards, so I’m not concerned about drop and a 2-3 inch group is fine on a deer.

My western muzzleloader shoots best with 140 grains 777 by volume and gives me a higher velocity for 200+ yard shots.
 
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