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Misfires & Problemswith 45-70 marlin 1895

4598 Views 6 Replies 6 Participants Last post by  swifty
This afternoon, I shoot about 20 rounds with 5744 30 grains
and had two misfires with federal large rifle primers. I rechambered thede rounds and they fired properly. I did notice some unburned powder in my rifle barrel.
I have using the RCBS priming unit that fits on my Rock Chucker with a primer tube feed.
Now i am beging to question the powder 5744 , partial fill,
priming technique,bullet crimping( used the Lee crimp).
Also, I got some erratic velocities on my Pact chronograph.
The volicities ranged from 1270 feet per second to 680 feet per second.
I have used the same chronograph before with consistant velocities. I shoot several rounds with my 375 H7H mag
whic seemed to be consistant.
I called Accurate powder company on Friday.They assured me that 5744 would perform properly with a partil filled cartridge.
The rounds printed well on a 50 yard target.Its just that I got some misfires, unburned powder, and eratic velocities.
Comments or answers will be appreciated.
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misfires and problems with the 45-70

I called Pact the fokes that made my new chronograph.
They suggested change the battry.I did and the problems of erratic readings cleared.It was a new battry that was removed,
but it was failing.
I called accurate powder, they said unburned powder was not unusal for 5744.
I can only relate the misfires to improper primer seating.
I do think I am going to switch to Federal mag primers 215.
I was using 5744 in amounts of 27,30 and 33 grains for a remington jacketed 405 grain bullet. I was averaging 1250 for the 27 grains, 1340 for 30 grains, and about 1450 for 33 grains. They all seem low but fairly consistant.
We will see what the Federal's 215 will do.
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