Hello and thank you for letting me on this forum. I am fairly new to reloading and have started to work on a load for the 460 rowland cartridge. My question is this. Is it ok to have the ogive lower than the case rim? I am loading the round with hornady 200 grain xtp's. To get the COL below 1.250 length required for it to fit in the magaine(its also the recommended length for the data that I am starting with), the bullet has to be seated about 0.050 below the case rim. It seemed to feed fine, I have just never loaded one like this. Any issues here?
Question about bullet seating depth
- Thread starter dchfm123
- Start date
condor bravo
New member
Probably no one else has loaded one quite like that either. If you gotta seat the 200 gr below the ogive, I guess you have no choice with that bullet but should you do it. Best to use the recommended 185 gr bullet. Using the 200 should require an additional powder charge reduction above the normal due to decreased combustion volume remaining in the case. But also a consideration, does the round headspace on the case mouth? Probably so and If so any crimp should not be applied. The case mouth must remain straight and should have bullet to case wall contact at that point. That would not be the case when seating below the ogive. Again, probably just best to go to the shorter 185 and have proper headspacing and avoid any complications.
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NavyVet1959
New member
From a pressure standpoint, what's important is the space from the rear of the bullet to the inside base of the brass. Before you start substituting one bullet for another, I would get a micrometer and measure the length of the two bullets in question if you are loading a maximum pressure loading.
Now, having said that...
Rowland states that you can shoot .460 Rowland and .45 ACP in his barrel. Even though both rounds supposedly headspace on the mouth of the brass, from a practical standpoint, they are headspacing off the extractor. Otherwise, you would not be able to fire .45 ACP in the .460 Rowland chamber.
I have a G21 that I converted to basically a .460 Rowland, but I used a .45 ACP barrel. I call it a ".45 SUPER +P+". The .460 Rowland brass is that same thickness as the .45 SUPER brass, so it can be used if so desired. I have even experimented with using .45 ACP brass with a .460 Rowland loading. I fully expected the brass to rupture, but it survived with no apparent damage.
In my 10mm firearms, I use .40SW brass loaded to 10mm OAL and pressure and it works out very well also -- in my G20, G21, and RIA M1911 10mm.
Now, having said that...
Rowland states that you can shoot .460 Rowland and .45 ACP in his barrel. Even though both rounds supposedly headspace on the mouth of the brass, from a practical standpoint, they are headspacing off the extractor. Otherwise, you would not be able to fire .45 ACP in the .460 Rowland chamber.
I have a G21 that I converted to basically a .460 Rowland, but I used a .45 ACP barrel. I call it a ".45 SUPER +P+". The .460 Rowland brass is that same thickness as the .45 SUPER brass, so it can be used if so desired. I have even experimented with using .45 ACP brass with a .460 Rowland loading. I fully expected the brass to rupture, but it survived with no apparent damage.
In my 10mm firearms, I use .40SW brass loaded to 10mm OAL and pressure and it works out very well also -- in my G20, G21, and RIA M1911 10mm.
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