Absolute Hammer load data

[ButterBean]

I acquired a 257 weatherby magnum in a vanguard deluxe this last week and got a load for it up and running today and I'm very happy with the results.
257 weatherby magnum
Weatherby brass
1-10 twist 26" barrel
90gr absolute hammer
H4350 powder
Federal 215 primer
3.250 oal
35 degrees temperature
68.-3640fps
68.5- 3743fps
69.- 3783fps
69.5- 3790fps
70.- 3829fps
70.5- 3853fps
71.-3839fps
71.5- 3884fps slight swipe
72.-3980fps heavy bolt and ejector swipe
The entire ladder test shot under 3/4 inch except the last shot. I'll probably load up 71 and try to print a group before season if I'm able but I think this dog will hunt.
View attachment 409392

Nice Rig

 

[unclecroc]

Nice Rig

Thank you sir.

 

[GLTaylor]

I acquired a 257 weatherby magnum in a vanguard deluxe this last week and got a load for it up and running today and I'm very happy with the results.
257 weatherby magnum
Weatherby brass
1-10 twist 26" barrel
90gr absolute hammer
H4350 powder
Federal 215 primer
3.250 oal
35 degrees temperature
68.-3640fps
68.5- 3743fps
69.- 3783fps
69.5- 3790fps
70.- 3829fps
70.5- 3853fps
71.-3839fps
71.5- 3884fps slight swipe
72.-3980fps heavy bolt and ejector swipe
The entire ladder test shot under 3/4 inch except the last shot. I'll probably load up 71 and try to print a group before season if I'm able but I think this dog will hunt.
View attachment 409392

Thanks for the data. Got a soft spot for the 25s. Beautiful rifle!

 

[PddPdd]

Looks like nothing for straight 7-08. Hmmm, no one likes it

I use the 131 grain Hammer Hunters in 7-08.

 

[unclecroc]

Thanks for the data. Got a soft spot for the 25s. Beautiful rifle!

Thank you sir. I too have developed a love for the quarterbore.

 

[CMP70306]

Now that we finished our shooting range project I set up my reloading equipment right behind the bench. I can load the rounds up then turn around and test them right away instead of having to take a bunch of test loads to the range. Load work ups are going to be a whole lot easier now and I can't wait to do more after hunting season.

18" 6.5 PRC 7 Twist
Once fired Lapua Brass
109gr AH
H4350
Fed 210M Primer
58gr - 3275 fps - bolt lift
58.5gr - 3315 fps - bolt lift and ejector
59gr - 3360 fps - bolt lift and ejector

N555 and N565 both ran out of room in the case before hitting pressure with velocities in the 3000 range with over 60gr of powder. Not really sure where to go from here as the 58gr load shoots ok, still has a touch of heavy bolt lift on some cases with no ejector mark but deer season starts next Saturday so I'm going to run with it.

 

[Joe270]

Remington model 700 ADL 25-06 24" 1-10 twist
Staball 6.5 59.5 grain
Cci 200 primer
Federal brass
Average 3684 fps
Slight ejector swipe and flattened primer.

 

[GLTaylor]

Jo

Remington model 700 ADL 25-06 24" 1-10 twist
Staball 6.5 59.5 grain
Cci 200 primer
Federal brass
Average 3684 fps
Slight ejector swipe and flattened primer.

Joe, what bullet weight? 90?

 

[Joe270]

Jo
Joe, what bullet weight? 90?

90 grain absolute hammer

 

[anotherreloader123]

Browning A bolt 22 in barrel 1/10 twist
25 wssm
90 gr AH
Rl15 powder (older Hercules lot so back off the loads a good amount)

2.35 OAL on all of the loads
No crimp on all

1x fire used CCI br-2 (43.0 gr and 44.0gr)

1x fire win brass
43 gr rl15
3255
3278
3276
Right under moa

44gr rl15
3335
3321
3322
Again right under moa

The rest are done in single shot increments



2x fire win brass/fed 210 primer (44.5gr, 45.0gr, 45.5gr, and 46.0 gr)

44.5 gr rl15
No read on chrono

45 gr rl15
no read on chrono

45.5 gr rl15
3417

46.0 gr rl15 ejector swipe velocity drop
3358

All the 1 shot ladder groups stayed in the same spot.

Still had a little room left in the case at 46 gr

 

[purpledragon]

I love my quarter bore too, 25STW and the 90gr Absolute Hammer.....

 

[Hard rock]

I love my quarter bore too, 25STW and the 90gr Absolute Hammer.....

I think that 90 gr is a good all around bullet for the quarter bore , in a lot of different cartridges, it sure works well, in my 1/8 twist 25/284.

 

[anotherreloader123]

I love my quarter bore too, 25STW and the 90gr Absolute Hammer.....

That thing must be smoking, how fast have you got it?

 

[purpledragon]

That is THE top load, works good in cold/cooler weather, but NO NO in hot. Stiff bolt lift, and have to wack the bolt with hand to extract fired case.......