Chuck Perry
Member
Help me out. Bought a box of plated 200g round nosers and none of my manuals have OAL data. Was going to go with 1.250 unless someone can tell me better.
Need 45ACP data
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robctwo
Member
I loaded up a few hundred 200 gr RN unplated @ 1.24 with good luck. Used 4.2 Clays. Shot the same as the 200 gr SWC.
JackOfAllTradesMasterAtNone
Member
Shape of the bullet round nose and your feed ramp will determine the best OAL. But, M1911 Ball and M1911 Match, (RN), are listed as 1.275". RN (Ball), loads and cycles so well through a 1911 it's almost sickening.
I seat my Lyman Lead RN and RNHP of 230gn at "1.265" OAL. This feads perfectly through my Kimber and my Officer's ACP. (And any other 1911 I've stuffed them in)
If you can't get ahold of the bullet manufacture for the correct spec's... (that's the first choice) With the RN, you probably won't have feed issues unless you're drastically distant from the spec's listed above. If we were talking lead SWC then that's different. I have to seat my Lyman 452450's, (200gnSWC), just a bit long to function correctly through my pistols.
Your RN should have flat sides up to where the curve starts to roll off. Seat your bullet just a .15" below this so your case with taper crimp is still straight so it's allowed to headspace properly. Measure OAL. If it's really close to the dimmensions above or a bit long, then adjust your die to seat a bit deeper. Once you're close then load some dummy's. No primer, no powder. One full magazine. Cycle the action by hand as fast as possible. Forcing a feed and ejection with each movement of the slide.
Once you feel comfortable with the feed, then work up a load.
-Steve
I seat my Lyman Lead RN and RNHP of 230gn at "1.265" OAL. This feads perfectly through my Kimber and my Officer's ACP. (And any other 1911 I've stuffed them in)
If you can't get ahold of the bullet manufacture for the correct spec's... (that's the first choice) With the RN, you probably won't have feed issues unless you're drastically distant from the spec's listed above. If we were talking lead SWC then that's different. I have to seat my Lyman 452450's, (200gnSWC), just a bit long to function correctly through my pistols.
Your RN should have flat sides up to where the curve starts to roll off. Seat your bullet just a .15" below this so your case with taper crimp is still straight so it's allowed to headspace properly. Measure OAL. If it's really close to the dimmensions above or a bit long, then adjust your die to seat a bit deeper. Once you're close then load some dummy's. No primer, no powder. One full magazine. Cycle the action by hand as fast as possible. Forcing a feed and ejection with each movement of the slide.
Once you feel comfortable with the feed, then work up a load.
-Steve
Lennyjoe
Member
Here's a post from a man who knows what he's talking about. (Thanks HSMITH)
Lenny, I assume this is for 45 acp.....
Here is the secret you can't tell anyone else. Really, you have to protect the innocent. Put a round of factory ball in the shell holder/plate. Back your seater way out, back your crimp die way out. Raise the ram all the way, making sure while you are going up that it isn't going to touch the dies.
Now, if you seat and crimp in one step, you have to screw the die body down making sure the seater doesn't touch. Just screw the die body down finger tight, lower the ram and give it 1/16th of a turn more down and lock it. Raise the ram again and screw the seater down finger tight against the bullet, lock it. Load one round of the new load without powder or primer, measure and compare the OAL of the round you loaded to the book. If you are short of book drop your starting load a little, if you are long start just above starting loads.
If you seat and crimp in two dies just seperate the steps above.
Set your 45 dies this way and your guns will feed just about any bullet you can find. Accuracy improvements with OAL changes in a handgun are nothing like rifles, get a decent load that functions every time and leave it alone.
Lenny, I assume this is for 45 acp.....
Here is the secret you can't tell anyone else. Really, you have to protect the innocent. Put a round of factory ball in the shell holder/plate. Back your seater way out, back your crimp die way out. Raise the ram all the way, making sure while you are going up that it isn't going to touch the dies.
Now, if you seat and crimp in one step, you have to screw the die body down making sure the seater doesn't touch. Just screw the die body down finger tight, lower the ram and give it 1/16th of a turn more down and lock it. Raise the ram again and screw the seater down finger tight against the bullet, lock it. Load one round of the new load without powder or primer, measure and compare the OAL of the round you loaded to the book. If you are short of book drop your starting load a little, if you are long start just above starting loads.
If you seat and crimp in two dies just seperate the steps above.
Set your 45 dies this way and your guns will feed just about any bullet you can find. Accuracy improvements with OAL changes in a handgun are nothing like rifles, get a decent load that functions every time and leave it alone.
robertbank
Member
Easiest way to determine OAL for your bullet if you can't find data for it is as follows:
Remove your barrel from the gun.
Measure the length of the bullet.
Drop bullet into the chamber and using your micrometer measure the distance from the base of your bullet to the top of the chamber.
Add the two measurements and deduct a few thousanths for variation in bullet length and you will have the max OAL for your cartridge using that particular bullet.
Take Care
Remove your barrel from the gun.
Measure the length of the bullet.
Drop bullet into the chamber and using your micrometer measure the distance from the base of your bullet to the top of the chamber.
Add the two measurements and deduct a few thousanths for variation in bullet length and you will have the max OAL for your cartridge using that particular bullet.
Take Care
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