Help. .45-70 col.

[Shotgunner60]

Trying to work mup loads of imr 3031 with 405 jsp's. When seating to cannelure COL. is 2.700", Books all say should be no more than 2.550". Seating at this depth will go way past cannelure. What should I do?

 

[Vern Humphrey]

What rifle are you using this load in?

If it's a lever action, follow the load book, otherwise it might not feed. If a single shot, try a loaded round to see if it chambers without the bullet sticking in the rifling.

 

[steveno]

you will not be able to use the cannelure for crimping if you are using a lever action such as the marlin. seat the bullet to the 2.550 oal. this is how remington crimps the round in the factory loads. if you have a Ruger # 1 then you can use the cannelure. I have a Ruger # 1 and then I found out the hard way when I bought a guide gun. I had to take the rifle apart at the range to unjam it.

 

[dodgestdshift]

If you are loading for the Marlin and possibly for the Winchester, you will need to keep the lenght to 2.55. I have found that the excellant way to do this with the Remington 405 gr. jsp bullet is to use the Lee Factory Crimp die, and do the bullet seat and the crimp in a separate step. With this die you do not need to crimp in the cannelure, and still get exceptional accuracy. The die is extremely reasonable price wise (under $10). After using this die on my Marlin 1895, I bought the Lee dies for all my other cartridges except 45 ACP.

 

[Shotgunner60]

Thanks guys, they will be going in a Marlin, so I'll order a Lee FCD. Glad they're so fast on shipping.