Hammer Bullets compressing my powder charge.

I just got a chance to look at that bullet you will be seating very deep due to the bullet design I suggest you go to a faster burning powder or go to the 117 hammer hunter it should be a great bullet for the 270win.
Yes I was thinking of going to the 117gr I thought I could stick with the 145gr but I have learned that,that is not going to work.
 
I've read this thread several times and see nowhere that it says what cartridge is actually being loaded. I don't have my reload books and numbers memorized. Is it a 270 Win or is it a 270 wsm? I have only 270 Win in my safe. 3.3 in is what I use for coal. Cannelure or copper groove isn't always where I seat.
 
I've read this thread several times and see nowhere that it says what cartridge is actually being loaded. I don't have my reload books and numbers memorized. Is it a 270 Win or is it a 270 wsm? I have only 270 Win in my safe. 3.3 in is what I use for coal. Cannelure or copper groove isn't always where I seat.
270 Win
 
Please stop what you're doing. Read a few loading manuals and technical articles and use data from a loading manual. You're going to blow your gun up or damage it or yourself if you continue these practices. Everyone starts somewhere and I very much support new reloaders, but you're not practicing safe measures or techniques.
 
CBTO I set it deeper because I haven't loaded copper bullets before and thought covering up all the bullet rings was a good place to start and I could adjust it latter.
My 6.5X47 shoots ragged holes with the 110 Hammer Hunters at .010 off the lands. With that setup, only ONE ring of the bullet is in the neck...no issues here.
 
First I did check bullet seating depth and have with this bullet using the hornady comparator it is 2.77. The brass is win the powder n165 59gr max is 59.9 the bullet is shock hammer 145gr.
You may be starting too high with this load. I was told that the longer bearing surface on mono's increases pressure above cup and core bullets of the same weight. I found pressure signs with a Hammer bullet starting 1 grain below Hodgdon's listed max load for the same weight Sierra.
 
I did not read all the info the much wiser than I might have given you but I have loaded monolithic bullets for 30+ years , DO NOT start at the top load or anywhere close to it . I have never loaded the Hammer , Mr. Steve would be your source to speak with on them . Loading Mono bullets develope more pressure than lead core bullets , BEWARE , I use the Barnes catalog for all the monos I load and out of an over abundance of caution start 2-3 grains below lowest recommended charge. seat it out as far as is practical with low charge , no closer than 3 off lands and most mono manf. recommend starting at 5 off lands and sweet spot somewhere between 5-8 off lands . Anyone reading this that disagrees please correct me , but do not pull the trigger on that load !
 
Loadbooks USA for the 270win shows the Vihtavuori data:

130gn Speer SPBT 3.268aol N165 max = 59.3gn

For a 145gn bullet, your 59.0gn load is too hot!
 
Please, stop reloading anything, and everything. Read your manuals and do not vary from what your manuals recommend. If you do not have any verified load data for any bullet, do not use that bullet. Start at the minimum charge weight and work up from there. Stick with the recommended cartridge OAL. Do not vary from what the manuals recommend. Do not vary from what your manuals recommend. Say it one more time: Do not vary from what the manuals recommend. You can do this.
 
I just ran across this thread and found it interesting since I ran into a seating depth issue with the 150gr Sledgehammer in a 280AI and maybe my experience with this can help. When starting to work up a new load I always start with a seating depth to maximize magazine length. Then I'll try to see how that works with my particular rifles throat. 9 out of 10 times when seating depth is adjusted to mag length the throat will accept that length. When working with the Sledgehammer I wasn't even close. I always make up a dummy round to use to set my seating die when changing bullets. So I kept adjusting the seater plug 1/8th turn deeper until the bolt handle would close, then went another .010 deeper. When I was finished the bullet only showed one ring exposed above the case neck; probably better than 75% of the bullet was inside the case Reducing case capacity much more than other bullets like the Barnes 145 LRX. It appears that the ogive of the bullet is so rounded that it contacts the lands in throat long before other .284 bullets and therefore must be seated much deeper in this particular rifle. I don't have any measurements since I am very old school and still find seating depth the way I learned 45 years ago. Maybe this will be of some help.
 
CBTO I set it deeper because I haven't loaded copper bullets before and thought covering up all the bullet rings was a good place to start and I could adjust it latter.


NO!!!! Pay no attention to bullet details (rings).

1. Find your lands AND magazine Length. Load to which ever is shorter.. then go .01 to .02 SHORTER.
2. Start with MIN powder charge from a comparable bullet, (Barnes, Nosler E-Tip, Or other copper bullet, or Conract Steve for powder charge)
3. Shoot, watch for pressure. Hard bolt lift, ejector marks, extreme velocity, primer craters etc.

Report back
 
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