Anyone worked up loads for these using more typical powders like 4895, 4198, 3031, 335, 322, either H or IMR? The factory data ignores all these and concentrates on a group of powders that start just below and move away from H4198 on down in the burning rate chart.
.45-70 300 gr TSX FN
- Thread starter sbtennex
- Start date
- Location
- Winnipeg,Man.
I have a 1895 Modern Marlin cowboy in 45-70. I use 50 gr IMR 3031 and 300 gr.jacketted with great results. 50 yards... 5 rounds... and cover with a Loonie. 100 yards and groups are under 2". Took a while to work up to this load combination but worth while in the end.
Just noticed your other thread, re 45-70. I know full well my Marlin 1895 would make 1 moa at 100 yards, if I can aim and hold it just a hair better.
Using 420 grain cast bullets, I have made a 5 shot group of 1.2'', but other than one "flyer," four of them made .9 inch. This was made with a very light load of 4227 powder with backing to hold the powder in place.
With a fairly heavy load with 420 grain bullets, 45 grains of IMR 4895, I have made a ten shot group of just over 1½ inches.
I'm told on good authority that 3031 is the magic powder for the 45-70, but so far, I don't have any of it.
In the original copy of the Lyman handbook of Cast Bullets, they show eight different powders for loading 325 grain gascheck bullets in the 45-70. These vary from Unique, (as low as 10 grains) to 4320, as high as 52 grains.
If I was going for accuracy with 300 grain bullets, I would certainly use the faster powders. There is a real good chance that Unique might give you what you want.
If you are wondering about the bullets touching the rifling, there is no better way of getting consistant release pressure of the bullet. If you can make them touch, I certainly would.
Using 420 grain cast bullets, I have made a 5 shot group of 1.2'', but other than one "flyer," four of them made .9 inch. This was made with a very light load of 4227 powder with backing to hold the powder in place.
With a fairly heavy load with 420 grain bullets, 45 grains of IMR 4895, I have made a ten shot group of just over 1½ inches.
I'm told on good authority that 3031 is the magic powder for the 45-70, but so far, I don't have any of it.
In the original copy of the Lyman handbook of Cast Bullets, they show eight different powders for loading 325 grain gascheck bullets in the 45-70. These vary from Unique, (as low as 10 grains) to 4320, as high as 52 grains.
If I was going for accuracy with 300 grain bullets, I would certainly use the faster powders. There is a real good chance that Unique might give you what you want.
If you are wondering about the bullets touching the rifling, there is no better way of getting consistant release pressure of the bullet. If you can make them touch, I certainly would.
Nothing to do with the burning rate not being what I want. Simply a matter that of the 35 or so different rifle powders I use for everything from a .223 thru .300 Mag, .338-06 and up to my .444 and .45-70, none of the ones Barnes recommends are on my shelf, and that's odd. I usually have at least one or two powders for any bunch of loads from any manual.
Stuck with 3031 for a long time. In fact my "big" load is 57 grs IMR3031 pushing a 350 gr Hornady. Powerful, but 2" at best. I can't get a 300 Barnes to the rifleing - too long for my lever gun. Wish I could 'cause the bullet's damn long and I could use the extra powder room in the case. Really having serious doubts as to the logic of the TSX's - good theory, lousy price, long bullets, odd loading guidelines, don't have much luck getting any kind of accuracy and did I mention expensive to try working up a load with when all the above things apply? As far as release pressure goes, they'll leave when they leave. I Lee factory crimp all the lever gun stuff and believe me, I can tell the difference if for some reason I have to stuff a crimped one into my inertial puller. Takes a pretty stout chunk of birch firewood to whack it on! More scope power (I'm using 2 3/4X) would help probably, but my eyesight's pretty good yet - I was doing 3" groups with a Williams peep from a rest.
sbtennex said---------- Nothing to do with the burning rate not being what I want. Simply a matter that of the 35 or so different rifle powders I use for everything from a .223 thru .300 Mag, .338-06 and up to my .444 and .45-70, none of the ones Barnes recommends are on my shelf, and that's odd. I usually have at least one or two powders for any bunch of loads from any manual.
Now I am the confused one! With all those powders, and burning rate has nothing to do with it, you obviously have more than enough varieties of powder to load any number of different loads in the 45-70.
What difference does it make what Barnes reccomends?
Now I am the confused one! With all those powders, and burning rate has nothing to do with it, you obviously have more than enough varieties of powder to load any number of different loads in the 45-70.
What difference does it make what Barnes reccomends?
