Hammer Hunter Load Data, (See page 1, Post 8)

[mtn_extreme]

The load I ended up with maybe GLTaylor (don't know how to key his name for notification ?) could add to the list -

6.5 prc , 1 x 7.5 twist , 24" length barrel , 124gr Hammer Hunters , Federal 210 primers , powder Vithivouri N560 - 61.8 gr at 3335 fps , Hornady brass - OAL 2.880 , bullet seated to first valley crimped at 1/4
I had big speed increase jump from 60.5 / 61 to 61.5gr and much smaller from there to 64 gr. Never really saw pressure until 64 grains with just slight bolt resistance and a hint of injector mark. 64 gr shot 3480 fps but the better grouping was where I settled.

 

[GLTaylor]

Mtn_extreme,
Got it. Will be in next update

 

[cbuck516]

300 PRC, 199gr HH, 24" Howa 1500, 1-8.5" twist, Lapua new, Federal 210, COAL 3.672", CBTO 2.991", H4831, 79.2gr, 3057fps, consistently 1/2MOA out to 400y

 

[JTH]

Started load development today with the 6.5 Sherman Short and 85 grain hammer hunter. 22" Proof barrel with 1/7.5 twist, decided to try Varget to start with. CCI large rifle #200 primers. Sherman brass. Seated 2.680 coal. All data below via LabRadar.

50.0 - 3444 fps
51.0 - 3498 fps
52.0 - 3631 fps
53.0 - 3637 fps
54.0 - 3716 fps
55.0 - 3754 fps
56.0 - 3799 fps
57.0 - 3815 fps
58.0 -3855 fps
59.0 - LabRadar did not record
60.0 - LabRadar did not record. Heavy bolt lift. Ejector mark. Stopped here.

Loaded three at 56.5 grains, producing 3797 fps average with es of 10 and sd of 5, groups sub moa.

 

[orange1948]

6.5 x 55 Swede Barret Fieldcraft, 24" Barrel, 1 in 8" twist
110 gr. Hammer Hunter, Lapua brass
Varget powder, Fed 210M primer
OAL 2.89", OGL 2.29"
Varget (grains)	40.5​	41​	41.5​	42​	42.5​	43​	43.5​	44​	44.5​	45​
Shot 1	2,979​	3,011​	3,074​	3,085​	3,128​	3,189​	3,190​	3,234​	3,266​	3,289​
Shot 2	2,962​	3,010​	3,057​	3,109​	3,151​	3,175​	3,213​	3,250​	3,269​	3,275​
Shot 3
Average	2,971​	3,011​	3,066​	3,097​	3,140​	3,182​	3,202​	3,242​	3,268​	3,282​
Extreme Spread	17​	1​	17​	24​	23​	14​	23​	16​	3​	14​
Standard Dev.	12.0​	0.7​	12.0​	17.0​	16.3​	9.9​	16.3​	11.3​	2.1​	9.9​

 

[orange1948]

6.5 - 284 Norma Fierce Fury, 24" Barrel, 1 in 8" twist
110 gr. Hammer Hunter, Peterson brass
Reloder 17 powder, Federal 210M primer
OAL 2.91", OGL 2.32"
Reloder 17 (grains)	50.5	51	51.5	52	52.5	53	53.5	54	54.5	55
Shot 1	3,260	3,307	3,330	3,369	3,411	3,451	3,491	3,508	3,553	3,619
Shot 2	3,273	3,300	3,352	3,373	3,431	3,446	3,489	3,523	3,588	3,610
Shot 3
Average	3,267	3,304	3,341	3,371	3,421	3,449	3,490	3,516	3,571	3,615
Extreme Spread	13	7	22	4	20	5	2	15	35	9
Standard Dev.	9.2	4.9	15.6	2.8	14.1	3.5	1.4	10.6	24.7	6.4
										Sticky bolt

 

[orange1948]

6.5 RPM Weatherby Accumark, 24" Barrel, 1 in 8" twist
124 gr. Hammer Hunter
Viht N555 powder, Federal 215M primer
OAL 3.39", OGL 2.78"
Viht N555 (grains)	62.0	62.5	63.0	63.5	64.0	64.5	65.0	65.5
Shot 1 (velocity fps)	3,153	3,179	3,206	3,242	3,258	3,277	3,310	3,352
Shot 2	3,165	3,189	3,231	3,242	3,273	3,314	3,299	3,330
Shot 3	3,191	3,178	3,203	3,243	3,284	3,304	3,322	3,351
Average	3,170	3,182	3,213	3,242	3,272	3,298	3,310	3,344
Extreme Spread	38	11	28	1	26	37	23	22
Standard Dev.	19.4	6.1	15.4	0.6	13.1	19.1	11.5	12.4
								Sticky bolt

 

[cbuck516]

300 PRC, 199gr HH, 24" Howa 1500, 1-8.5" twist, Lapua 1x, Federal 210, COAL 3.652", CBTO 2.971"
N570
80.0 2849fps
80.5 2869fps
81.0 2914fps
81.5 2935fps
82.0 2940fps
82.5 2943fps
83.0 2957fps
83.5 2997fps
84.0 3005fps
84.5 3009fps
All 10 shots fit inside a quarter at 100 yards. 83.5-84.5 were very slightly compressed. Good looking velocity nodes at 82gr. and 84gr.

 

[Northkill]

300 PRC, 199gr HH, 24" Howa 1500, 1-8.5" twist, Lapua 1x, Federal 210, COAL 3.652", CBTO 2.971"
N570
80.0 2849fps
80.5 2869fps
81.0 2914fps
81.5 2935fps
82.0 2940fps
82.5 2943fps
83.0 2957fps
83.5 2997fps
84.0 3005fps
84.5 3009fps
All 10 shots fit inside a quarter at 100". 83.5-84.5 were very slightly compressed. Good looking velocity nodes at 82gr. and 84gr.

That's some serious medicine you got there...

 

[GLTaylor]

Just a heads-up. The Hammer Hunter Spread sheet was just updated (11-18 from 11-8). A goof on my part. A 300 WM load was posted under 308 Win in 152gr HH. (Don't think a 308 can hold 80 grs of powder!) Thanks to members who keep me honest!

 

[armbar]

I'm looking for a load for a 300WM. I've looked through this thread and the actual spread sheet, and I'm curious as to why no one has tried RL19 for the 181HH. There is data for powders from RL16 through RL26 but none for RL19 which has a burn rate somewhere between those. I've had good results with RL19 in other 300WM's and have some in my garage waiting to be loaded. Can anyone give me an idea where to start or tell me why no one else has tried it?

 

[JTH]

Started load development today with the 6.5 Sherman Short and 85 grain hammer hunter. 22" Proof barrel with 1/7.5 twist, decided to try Varget to start with. CCI large rifle #200 primers. Sherman brass. Seated 2.680 coal. All data below via LabRadar.

50.0 - 3444 fps
51.0 - 3498 fps
52.0 - 3631 fps
53.0 - 3637 fps
54.0 - 3716 fps
55.0 - 3754 fps
56.0 - 3799 fps
57.0 - 3815 fps
58.0 -3855 fps
59.0 - LabRadar did not record
60.0 - LabRadar did not record. Heavy bolt lift. Ejector mark. Stopped here.

Loaded three at 56.5 grains, producing 3797 fps average with es of 10 and sd of 5, groups sub moa.

Finished up load development today. 56.5 grains with a OAL of 2.630 is grouping decent (5 shots at 100 yards below) and running about 3740 fps. With the additional jump I tried running more powder but hit pressure again at 58.0 grains, the groups were best at 56.5 grains. Not too shabby out of a 22" barrel.

 

[JTH]

Started load development today with the 137 grain 30 caliber hammer hunter in my Cooper 300 win mag. It's a 24" barrel, 1/10 twist. Using Peterson 300 wm long brass, seated to 3.440 OAL, Fed 215 primers, H4350. Only had time for pressure testing today.

78.0 - 3553 fps
79.0 - 3646 fps
80.0 - 3652 fps
81.0 - 3703 fps
82.0 - 3756 fps
83.0 - 3778 fps
84.0 - 3823 fps

No pressure signs yet, will see how much more powder I can get in the case, hopefully find a node closer to 4000 and then start testing seating depth's.

 

[RB II]

Searching for a load for a 28 Nosler and 169 HH.
ADG and Nosler brass
CCI 250 and Rem #9 1/2 M primers
Powders available:
H 1000, N 570, N 565, N 560, Ramshot Magnum, 7826 SSC, IMR 4831

Lots of info on this thread and spreadsheet, but only one (that I could find) load for any of these powders and this bullet. It seemed to be a very hot load and I am more interested in accuracy and ease of use on components than speed, just for speeds sake.

Your input on load data for the 28 Nosler and 169 HH is greatly appreciated.
Thanks.