300 wsm and 154hht

Go directly to the source.
The load data is rather screwy... I'm looking at data that only has start charges... they are kind enough though to show the top velocities that the load makes with a mystery charge.
The data isn't really any closer to a final load than another brand's load data or a simply guessing based on the cartridge.

To the O.P. ... I run 67 I 4350 in my 300wsm striker pistol with 165 Nosler bt's.
They are starting the data with the 154 hh at 63 h4350 in the 300wsm (mystery top charge of course).
 
The load data is rather screwy... I'm looking at data that only has start charges... they are kind enough though to show the top velocities that the load makes with a mystery charge.
The data isn't really any closer to a final load than another brand's load data or a simply guessing based on the cartridge.

To the O.P. ... I run 67 I 4350 in my 300wim striker pistol with 165 Nosler bt's.
They are starting the data with the 154 hh at 63 h4350 in the 300wsm (mystery top charge of course).
Right that's why I was asking to see if anyone had any real data. Guessing is like ****ing in the wind. And at 2 bucks a pop I'd rather not waste them.
 
Right that's why I was asking to see if anyone had any real data. Guessing is like ****ing in the wind. And at 2 bucks a pop I'd rather not waste them.
I'd guess 67-68 top load personally... You are, unfortunately, going to have to waste a few bullets on a pressure run up. I suggest 1 grain steps and 1 shot per weight to get an idea where high pressure starts, then start development where you last see sane pressures.
The only Hammers I've run were the 259's through my 35 Whelen. They didn't drag worse than a 250 lead core would.
 
I got a small ladder loaded up to 68.5. Only h4350 data I would was on the hammer fourm one guy had some he did a ladder from 66-70 but then I say hammers data said start at 63 so I'm trying to decide if I should start all the way down at 63.
 
The load data is rather screwy... I'm looking at data that only has start charges... they are kind enough though to show the top velocities that the load makes with a mystery charge.
The data isn't really any closer to a final load than another brand's load data or a simply guessing based on the cartridge.

To the O.P. ... I run 67 I 4350 in my 300wsm striker pistol with 165 Nosler bt's.
They are starting the data with the 154 hh at 63 h4350 in the 300wsm (mystery top charge of course).
I wouldn't know, but I always try to go directly to the source for all the bullets I load.
Right that's why I was asking to see if anyone had any real data. Guessing is like ****ing in the wind. And at 2 bucks a pop I'd rather not waste them.
If you had included this information in your post, I would have never made such a recommendation. Having said that, @Bghunter338 and I have loaded bullets with no load data available, either from the bullet manufacturer or elsewhere, but have shared load information/essons learned in the process.
 
I wouldn't know, but I always try to go directly to the source for all the bullets I load.

If you had included this information in your post, I would have never made such a recommendation. Having said that, @Bghunter338 and I have loaded bullets with no load data available, either from the bullet manufacturer or elsewhere, but have shared load information/essons learned in the process.
No problem just seems I've got that from everybody. Yeah I've already looked there. Just trying to see if there's anything else.
 
No problem just seems I've got that from everybody. Yeah I've already looked there. Just trying to see if there's anything else.
If you go to the Hammertime Forum, under Reloading, there is member developed/shared load data for all of the Hammer bullets. I used to update the same data on this Forum (Longrange), but it has gotten corrupted (?) and I can't find it anymore.
It gives bullet, caliber, barrel length, twist powder/primer and start/finish loads and velocities.
 
I've tried to match the max loads and velocities of those past charts and probably due to different brands of brass and primers and chamber dimensions, my rifles showed pressure before I achieved "their" velocities. However, it was still good enough for my hunting purposes and quite a bit better than factory loads. I now use 3 grains under what they said they saw pressure and start there.
 
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