Started to do some reloading for my 300 Rum the coal is 3.80 to the lands.The problem is I have to unscrew my die to get the bullet out of the press every time.Is this common to have to do with long cartridges.I have a RCBS Rock chucker and Redding s type dies.Ive reloaded for a lot of years and this is the first time ive had this hapen.
- Thread starter Some Day
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You could back the entire seating die out a full turn or two (or more if needed) and see if that would help. The only reason I know of for setting the seating a deeply as recommended in the instructions is to allow for it to work with the shorter OAL's, unless your die is also designed to crimp while seating the bullet.
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sounds like your ram is not lowering the full throw.
You may need one of the newer Rock Chucker Supremes or a Lee Classic Cast to fit your Ultra Mag. Hornady and a few others also makes a larger press.
The 300RUM is a relatively new cartridge, the original Rock Chucker has been with us a long, long time.
The 300RUM is a relatively new cartridge, the original Rock Chucker has been with us a long, long time.
You have a 4" ram stroke on that press. You may need to raise the die and then lower the seating stem to accommodate this cartridge. I only have 3.8" on my Redding Big Boss II, but I have the Hornady LnL Bushings installed on it so it is a simple twist and pull to pull out my dies. For $15 (conversion bushing and a few lock rings), it was a good investment for me. Not everyone likes them, but I love them.
That's why they make presses like:
Redding Ultramag 4 3/4" frame opening
RCBS Big MAX 5" frame opening (discontinued but can be found on e-bay)
CH4D Champion 4 1/2" frame opening
CH4D Rock Crusher nearly an 8" opening (this monster weighs 104 lbs)
I used an RCBS Big Max (shown below) for more than 20 years just to load full length cartridges based on the 375 H&H case. If you going to load long rounds routinely, your going to need a bigger press......
I use Lyman Orange Crusher and I barely have enough height when reloading the 338 Lapua. I've been looking and found a use Ultramag and now do all my reloading on that press, from 223 on up to my 338 Lapua.
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I am going to have to look on e-bay for a bigger press.I had no trouble with it when I reloaded the 300 rum when i went by the reloading book for the factory 300 rum. But since I had William Roscoe work his magic on it and now wanting to shoot long range and getting more accuracy by setting closer the lands I see I'm going to have to have a bigger press.
I want to thank You all for your help.
I want to thank You all for your help.
