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

ButterBean

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I am wondering if you all may be able to help me with the 88gr hammer hunter in a 6 creed. I must be doing something wrongm I am not able to get this bullet to shoot.

Hornady brass, F210 primer H4350 powder.

If I am at 43.3 gr and above there is noticeable bolt lift. No ejector marks or pressure signs on the primer. The group sizes for 43.6-43 are in the neighborhood of 1.5-2" at 100 yards. If I am in the 42.5-41.9 range I am getting around .7", 3 shot groups.

the COL for this is 2.738". The base to ojive distance is equal to what I am using with the Berger 105gr VLD Hunter. With the Berger I am able to shoot sub .4" groups repeatedly. For the Berger I am at 41.9gr.

Thank you for any insight you may have.
Your running way too slow of a powder, Varget, 8208XBR, RL15
 

nealm66

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It’s probably due to harmonics. I’ve used .01 ladder up or down and found the accuracy node very quickly with hammers. I’ve also used tuners if I want to keep velocity. I’ve got 5 rifles dialed in now using these methods.
 

just_jon

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What was the case fill like on the 22-250?
I was hoping you would chime in. QL shows 42.3 as 99%. Powder is at body/shoulder junction. I shot 3 rounds with IMR 8208, but speeds were around 3800 so I didn’t bother finishing up. Accuracy was only slightly better.

I’m considering N140, IMR 4064, RL10X, RL15, H4895 and BL-C(2). My powder cabinet is full, so any suggestions are likely in stock.
 

Weaselthis

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7mm-300 Win Mag wildcat Remington 700
Bartlein 27" 5R, 1:8.5 twist, round count 601.
NO CRIMP! No die.

169g HH:

W-W Brass, 3+ firings, (some 4-5..grandkids mixed 'em up!), COAL: 3.654 (-.024 off lands).
Fed 215 primer (Blue Box),
This is max in my rifle: 73.5g H-1000, 3214fps, .830 MOA, SD: 11.7 ES:22
74g had cratered primers, 3254fps, SD:7.9 ES:15. 74.5 Blew Primer!

143g HH:
W-W Brass, 3+ firings, (some 4-5..grandkids mixed 'em up!), Fed 215 primer (Blue Box)
OGIVE : 3.000 (-.017 off lands). Forgot to measure COAL.
75g H-1000, 3344fps, MOA: .396!, SD: 0 ES: 1 (Unicorn group, I know. Gonna try and replicate.
77g H-1000, 3424fps, MOA: .977, SD: 18 ES: 33, Heavy bolt lift/extraction, swipe. STOPPED!
 

ButterBean

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West Terre Haute Indiana
7mm-300 Win Mag wildcat Remington 700
Bartlein 27" 5R, 1:8.5 twist, round count 601.
NO CRIMP! No die.

169g HH:

W-W Brass, 3+ firings, (some 4-5..grandkids mixed 'em up!), COAL: 3.654 (-.024 off lands).
Fed 215 primer (Blue Box),
This is max in my rifle: 73.5g H-1000, 3214fps, .830 MOA, SD: 11.7 ES:22
74g had cratered primers, 3254fps, SD:7.9 ES:15. 74.5 Blew Primer!

143g HH:
W-W Brass, 3+ firings, (some 4-5..grandkids mixed 'em up!), Fed 215 primer (Blue Box)
OGIVE : 3.000 (-.017 off lands). Forgot to measure COAL.
75g H-1000, 3344fps, MOA: .396!, SD: 0 ES: 1 (Unicorn group, I know. Gonna try and replicate.
77g H-1000, 3424fps, MOA: .977, SD: 18 ES: 33, Heavy bolt lift/extraction, swipe. STOPPED!
I can fix you up on the die
 

ButterBean

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I was hoping you would chime in. QL shows 42.3 as 99%. Powder is at body/shoulder junction. I shot 3 rounds with IMR 8208, but speeds were around 3800 so I didn’t bother finishing up. Accuracy was only slightly better.

I’m considering N140, IMR 4064, RL10X, RL15, H4895 and BL-C(2). My powder cabinet is full, so any suggestions are likely in stock.
Give me a call this evening 812-264-6183
 

CForest

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Anyone have some load data for 7 Saum with 155 HH?? Building a tikka with 20" c6 barrel, wanting to get some loading supplies on hand while i wait for build to get done. Suggestion of powders and expected speeds would be excellent! Have some H4350 and H4381sc but willing to track others down if necessary. Will be using ADG brass.
 

just_jon

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Give me a call this evening 812-264-6183
Thank you for reaching out with advice and encouragement. I thought
i knew the answer, but hearing it from you was a confidence booster.

22-250AI
44 grain Hammer Hunter
T/C Encore 26” custom shop 1:12
3x Lapua brass sized .002” .003 neck tension 1/8 T FCD
Fed 210M
COAL 2.265”
Back out today with the 22-250AI and the 44 HH. ES, SD and accuracy (100 yards) much more to my liking, I left the range with a smile on my face.

Varget
42.8: 4167 fps ES 24 SD 10 Group 1.22”
43.3: 4252 fps ES 18 SD 8 Group 1.07”
43.8: 4285 fps ES 10 SD 4 Group .62”
44.3: 4337 fps ES 5 SD 2 Group .47”
44.8: 4413 fps ES 28 SD 11 Group .51”

Still no sign of excessive pressure. Plan on testing 45.3. May have to get out the drop tube and electric toothbrush.
 

CBH Australia

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Thank you for reaching out with advice and encouragement. I thought
i knew the answer, but hearing it from you was a confidence booster.


Back out today with the 22-250AI and the 44 HH. ES, SD and accuracy (100 yards) much more to my liking, I left the range with a smile on my face.

Varget
42.8: 4167 fps ES 24 SD 10 Group 1.22”
43.3: 4252 fps ES 18 SD 8 Group 1.07”
43.8: 4285 fps ES 10 SD 4 Group .62”
44.3: 4337 fps ES 5 SD 2 Group .47”
44.8: 4413 fps ES 28 SD 11 Group .51”

Still no sign of excessive pressure. Plan on testing 45.3. May have to get out the drop tube and electric toothbrush.
Looks like 44.3 would be acceptable.
 

Wolf76

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Grandville, Michigan
@ GLTaylor same info on gun and C.O.A.L as before.


33 nosler 260 HH R-16 70.5 gr. Temp 68°

Tested over labradar with magnetic trigger
3 shot groups with barrel cooling time between groups

Shot 1 failed to read (still getting use to trigger)
Shot 2. 2,782
Shot 3. 2,772

Shot 4. 2,788 target shown in pic
Shot 5. 2,775
Shot 6. 2,795

Shot 7. 2,800
Shot 8. 2,793
Shot 9. 2,783

Shot 10. 2,804
Shot 11. 2,778
Shot 12. 2,779



Average velocity for all 9 shots (didn't use first 3 shot group due to failure to read ) was 2,788 fps

Average SD for 9 shots (didn't use first 3 shot group due to failure to read) was 9.7

@ 9,500 feet elevation (Colorado)
1,000 yards 1,896 fps 2,100 ftlbs
300 yards. 2,500 fps 3,651 ftlbs

Expected shot distance 300 yards or less

I'm happy with that for this year's elk/ mule deer hunt

I was having one of those off range days. I'm confident this load can do better than I was shooting it today. Going to load a bunch and test out to 600 yards and possibly 1,000 yards.

I would like to give a shout out to Steve from Hammer Bullets for always quickly answering my questions. If I wasn't chasing speed this load would have came together as easy as what others are experiencing. Steve suggested R-16 where to start, I ran the ladder test backed 1.5 gr. Off pressure and got the above results.

View attachment 298507
View attachment 298505
.625" definetly could do better, I was off my game today but we all have those days right?


I run the same bullet in a 338 edge.
R700 w/HCA 9.4 26" barrel
96.5 N570 260(actually 262)hammer 3K FPS
.5-.75 moa depending on my trigger pull that day.
My coal 3.850.....obviously doesn't apply to your nosler.
 
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