crimping top side of cannalure?

[WhelanLad]

Hey guys, having issues with the 375 win with crimping the bullets around the cannalure on the hornday 220gr projie... had tried to seat it a touch below the line but today had it fail an push a bullet in the tube magazine on the 94BB.

What issues do i have if i seat the bullet further an get a crimp on, making a shorter COAL.

Thanks

ps- it looks ugly but....

 

[iceman2]

When crimping with the seating die all cases must be the same length and bullets seated so that the mouth of the case can be bent into the groove to get a firm grip. Option 2 is a Lee factory crimp die. A minor shorter COAL should not make a difference.

 

[WhelanLad]

Thanks, just thought maybe because more jump to the rifling? more pressure? although my loads are light..

im just waiting on a price for the Lee crimp die, seems a must for the rookie i am with reloading

 

[H4831]

Thanks, just thought maybe because more jump to the rifling? more pressure? although my loads are light..

im just waiting on a price for the Lee crimp die, seems a must for the rookie i am with reloading

Save the money you were going to spend on the Lee factory crimp die. Your standard seating/crimping die will work just fine.
Be sure it crimps exactly in the cannalure of the bullet.
The so called, "factory crimp die," can only do the same. You can not satisfactorly crimp other than in the cannalure of the bullet, regardless what you may have heard, or assumed from the advertising.

 

[mmattockx]

Hey guys, having issues with the 375 win with crimping the bullets around the cannalure on the hornday 220gr projie... had tried to seat it a touch below the line but today had it fail an push a bullet in the tube magazine on the 94BB.

What issues do i have if i seat the bullet further an get a crimp on, making a shorter COAL.

Thanks

ps- it looks ugly but....

Load density on the .375 Win is nowhere near 100% (at least it wasn't on mine, even with book max loads), so seat your bullets at the length required to properly crimp into the cannelure. Having a bigger jump to the rifling lowers pressures, so that will be a non-issue for you. H4831 is right on the FCD, if your current die set is working OK there is no need to use the FCD.


Mark

 

[WhelanLad]

Hey guys i got my Factory crimp die today an put a few loads through it, all 30 of them actusally... The bullet is crimped in the cannelure nicely now in most cases but the odd one will spin a little but wont push past the line so all is well.

I shot a couple rounds tonight an im glad to say the rifle is now very capable of taking a deer at 100m, i would go a little further with a broadside shot but for its intended purpose its finally all come together... its been a few years of ups an big downs with this rifle an ammo, reloadin has enabled me to tailor it down to an accurate enough an consistant rifle to shoot.... i quite enjoy it an will have an even bigger smile when i take the next deer with it, if all things align!

Thanks for the help

 

[joe-nwt]

Hey guys i got my Factory crimp die today an put a few loads through it, all 30 of them actusally... The bullet is crimped in the cannelure nicely now in most cases but the odd one will spin a little but wont push past the line so all is well.

I shot a couple rounds tonight an im glad to say the rifle is now very capable of taking a deer at 100m, i would go a little further with a broadside shot but for its intended purpose its finally all come together... its been a few years of ups an big downs with this rifle an ammo, reloadin has enabled me to tailor it down to an accurate enough an consistant rifle to shoot.... i quite enjoy it an will have an even bigger smile when i take the next deer with it, if all things align!

Thanks for the help

If the bullet spins after crimping you still have problems. You might not get bullets pushing back into the case, but you surely do not have proper neck tension either. This can cause inconsistent ignition and poor accuracy.

Before crimping, push a loaded round, bullet first, into a hard surface such as the edge of your reloading bench. You should not be able to move the bullet using a reasonable amount of force. If you can, measure your expander. If it is too big, chuck it into a drill and use some emery cloth to reduce the size slightly.