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6x47 Lapua

#201
I don't think I ever posted my results for attempting a slower node.

36gr of h4350 failed to group or get consistent speeds behind 109 hybrids, DTACs, or Match Burners. I was averaging around 2790, with an SD of about 50 FPS. It was bad.

I bumped it to 37.3 and got just under 2950 with single digit SDs, and it was grouping pretty well with 112 Match Burners.

I have a feeling that if I want to run 2800, I'll have to run h1000 or something like that, or do as PewPew says and make my own LRP brass from creedmoor or something.
 
#202
rothgyr said:
I don't think I ever posted my results for attempting a slower node.

36gr of h4350 failed to group or get consistent speeds behind 109 hybrids, DTACs, or Match Burners. I was averaging around 2790, with an SD of about 50 FPS. It was bad.

I bumped it to 37.3 and got just under 2950 with single digit SDs, and it was grouping pretty well with 112 Match Burners.

I have a feeling that if I want to run 2800, I'll have to run h1000 or something like that, or do as PewPew says and make my own LRP brass from creedmoor or something.
Click to expand...
I was hoping to hear back about your experiments. I wish Peterson made small and large primer brass like they did for 6xc. I was considering that but finding a smith with a manson reamer is harder than I thought
 
#203
rothgyr said:
I don't think I ever posted my results for attempting a slower node.

36gr of h4350 failed to group or get consistent speeds behind 109 hybrids, DTACs, or Match Burners. I was averaging around 2790, with an SD of about 50 FPS. It was bad.

I bumped it to 37.3 and got just under 2950 with single digit SDs, and it was grouping pretty well with 112 Match Burners.

I have a feeling that if I want to run 2800, I'll have to run h1000 or something like that, or do as PewPew says and make my own LRP brass from creedmoor or something.
Click to expand...
Try H4831sc, N555 or Rl23 perhaps?
 
#207
PRSDietitian said:
I don’t put too much confidence on burn rate charts but it’s close to reloder 15.5 so I feel it could be a great option. I’ve heard n150 is also a great option for 105-109
Click to expand...
N150 works well in a BRA and GT, My bra topped out over 3k fps with a 105hyb. It's close to Varget in that case gr for gr and correlating velocity.
 
#209
Low node info for my 26” hart 7 twist

112 match burners
Peterson brass
Cci450
38.0g h4350
 

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#214
What's ya'lls experience with something like a forster FL or custom honed FL sizing die vs something like a wilson, whidden, or redding or whatever bushing FL die? I saw Area 419 comment on a post from ReloadingAllDay saying a well made non bushing FL sizing die will have a greater tendency to produce straight ammo.
 
#215
PRSDietitian said:
What's ya'lls experience with something like a forster FL or custom honed FL sizing die vs something like a wilson, whidden, or redding or whatever bushing FL die? I saw Area 419 comment on a post from ReloadingAllDay saying a well made non bushing FL sizing die will have a greater tendency to produce straight ammo.
Click to expand...
I agree about the honed FL die making straight ammo. I used to use a bushing die till i put one of my bushing in i had never used and it was not concentic. My ammo was bad.

I now use forster honed dies and my load is 60% 1’s and 25% 2’s and the rest 3’s. I am sold on them. I now have 12 reloads on my 6br and 9 on my 6x47L. No cases lost since i went to those dies.

David
 
#216
Dstoenner said:
I agree about the honed FL die making straight ammo. I used to use a bushing die till i put one of my bushing in i had never used and it was not concentic. My ammo was bad.

I now use forster honed dies and my load is 60% 1’s and 25% 2’s and the rest 3’s. I am sold on them. I now have 12 reloads on my 6br and 9 on my 6x47L. No cases lost since i went to those dies.

David
Click to expand...
That is the kind of confidence I was, hoping to hear! Getting one ordered once I start breaking in my brass
 
#218
6x47 Lapua
28" Proof Research 7.5T Competition Contour
David Tubb 115 DTAC (5K Jump)
Vihta Vuori N555 Powder
CCI#450
Peterson Brass
34°, 28.58 SP, 77% RH, -70 DA, 1380 Actual Altitude

39.0 GR = 2824 AV, 20 ES, 6.4 SD, 9 Rounds
39.5 GR = 2831 AV, 56 ES, 14.2 SD, 9 Rounds
40.0 GR = 2900 AV, 22.5 ES, 8.9 SD, 9 Rounds
40.3 GR = 2902 AV, 35.8 ES, 10.9 SD, 9 Rounds
40.5 GR = 2938 AV, 33 ES, 9.6 SD, 9 Rounds
41.0 GR = 2965 AV, 18 ES, 5.2 SD, 9 Rounds

A_20240115_0001.png
 
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#219
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#221
They were custom pulled Roy Hunter 103g
Nice shooting. My nodes were about .6g grains apart and the faster I pushed
them, the smaller they shot.
The 39.5 looks to be in-between a nice node, but your leaving some speed on the table.
The 40.0 and 40.5 with the N160 looks nice also.
If you can take those out longer, then I'd try that. ( 300yds. + )
 
#222
rothgyr said:
I don't think I ever posted my results for attempting a slower node.

36gr of h4350 failed to group or get consistent speeds behind 109 hybrids, DTACs, or Match Burners. I was averaging around 2790, with an SD of about 50 FPS. It was bad.

I bumped it to 37.3 and got just under 2950 with single digit SDs, and it was grouping pretty well with 112 Match Burners.

I have a feeling that if I want to run 2800, I'll have to run h1000 or something like that, or do as PewPew says and make my own LRP brass from creedmoor or something.
Click to expand...
It might be at the lower speeds those powders are only filling the case 85-90% leaving an air gap under the bullet. What I do is run QLoad (or GRT) for a lower pressure, like 50-55kPSI and powders that have at least a 95% case capacity for that bullet.
 
#225
I shot a 6.5x47L with 130 hybrids at the Hornady PRC last month. Recoil was harder, and I was out of practice, so it took me a full day to get my watch-down-range discipline back up to snuff, but it's mostly a training issue, and I've only shot 2 regional matches (with a gas gun) this year. I was right in the center of the pack, where I expected to be.

If you're building a new gun, I'd just go 25 gt with 135 hybrids in a straight taper barrel. That's a serious wind cheater. If you already have a x47L, go shoot it, learn to use good fundamentals like you already should be doing, and you'll be just fine.
 
#226
rothgyr said:
I shot a 6.5x47L with 130 hybrids at the Hornady PRC last month. Recoil was harder, and I was out of practice, so it took me a full day to get my watch-down-range discipline back up to snuff, but it's mostly a training issue, and I've only shot 2 regional matches (with a gas gun) this year. I was right in the center of the pack, where I expected to be.

If you're building a new gun, I'd just go 25 gt with 135 hybrids in a straight taper barrel. That's a serious wind cheater. If you already have a x47L, go shoot it, learn to use good fundamentals like you already should be doing, and you'll be just fine.
Click to expand...
ok thanks i already have a 6 x 47 lapua but have a 6 mm krieger barrel on order with a 7.5 twist was thinking about a 6 GT or another 6 x 47 ? not sure really .
 
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#227
6x47 is a great round, has the top side for a lot of velocity, but most guys run it right under 3k fps for match use. The biggest issue I've found with the 6x47, a lot of reamers out there are not based on straight necked down 6-6.5x47. Other chamber specs a being changed and this caused die/brass/chamber fitment issues. Just ensure your smith is using a reamer that's based on straight necked down 6.5x47, and utilize a quality 6.5x47 bushing die with appropriate sized neck bushings. You'll be good to go! 6gt is extremely easy tho, I'm on match barrels 4 & 5 currently, but also have 3 other barrels cut in 6gt, plus the woman shoots 6gt as well. If you don't plan to run north of 3k fps, the smaller 6gt is the more efficient choice, this is considering 26" or longer barrels. If you're going with a short barrel, step up in capacity to the X47, XC, or 6cm.

Side note, ensure your kreiger is a 237 bore diameter. 236 is their "tight bore" and it'll pressure out sooner. My first 6gt was just that, a 236 bore kreiger, it shot fantastic, however at about 1000-1200 rounds I had to drop down from 2950, to low 2800s due to the barrel getting some fire cracking and causing excessive pressure. All my 6gt since have been 237 bore and have gone to 2500 rds shooting very well without any erratic behavior.
 
#228
4O6shootist said:
6x47 is a great round, has the top side for a lot of velocity, but most guys run it right under 3k fps for match use. The biggest issue I've found with the 6x47, a lot of reamers out there are not based on straight necked down 6-6.5x47. Other chamber specs a being changed and this caused die/brass/chamber fitment issues. Just ensure your smith is using a reamer that's based on straight necked down 6.5x47, and utilize a quality 6.5x47 bushing die with appropriate sized neck bushings. You'll be good to go! 6gt is extremely easy tho, I'm on match barrels 4 & 5 currently, but also have 3 other barrels cut in 6gt, plus the woman shoots 6gt as well. If you don't plan to run north of 3k fps, the smaller 6gt is the more efficient choice, this is considering 26" or longer barrels. If you're going with a short barrel, step up in capacity to the X47, XC, or 6cm.

Side note, ensure your kreiger is a 237 bore diameter. 236 is their "tight bore" and it'll pressure out sooner. My first 6gt was just that, a 236 bore kreiger, it shot fantastic, however at about 1000-1200 rounds I had to drop down from 2950, to low 2800s due to the barrel getting some fire cracking and causing excessive pressure. All my 6gt since have been 237 bore and have gone to 2500 rds shooting very well without any erratic behavior.
Click to expand...
thanks good info the barrel i order is a 237 bore . can the 6 GT shoot with the 6 bra or the dasher ? most at it can't .
 
#229
wildturkey2 said:
thanks good info the barrel i order is a 237 bore . can the 6 GT shoot with the 6 bra or the dasher ? most at it can't .
Click to expand...
I feel that it can. This is a 20shot zero check on my ladies 6gt, 107smk with 33.4gr varget, jumping 40k, running 2970 from a 26" 7.5tw. A 20 shot group from a dasher or bra isn't likely going to be much better. Maybe? My 6bra would shoot some tiny groups, but if you overlayed multiple groups it likely shot in the 4s. I've never run the dahser, but a lot friends do. Their 10 shot groups are usually in the 3s and 4s. Likely slightly bigger if you add another 10. The difference between a 0.4 moa and 0.5 Mao rifle isn't gonna help a guy hit more targets.

I could honestly care less if my rifles capable of tiny 5 shot groups. I want long shot strings to hold a half min or less cone of fire. I'm not a benchrest shooter, just more of a practical marksman, do prs and field matches. Practice from a lot of weird positions on an 8" plate that I have at 660y. I consider the 8" target a small vital zone of most medium/large game animals. I shoot to be a better marksman, to be a better more efficient killer in the field hunting

image_cropper_1718916774717.jpg
 
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#230
4O6shootist said:
I feel that it can. This is a 20shot zero check on my ladies 6gt, 107smk with 33.4gr varget, jumping 40k, running 2970 from a 26" 7.5tw. A 20 shot group from a dasher or bra isn't likely going to be much better. Maybe? My 6bra would shoot some tiny groups, but if you overlayed multiple groups it likely shot in the 4s. I've never run the dahser, but a lot friends do. Their 10 shot groups are usually in the 3s and 4s. Likely slightly bigger if you add another 10. The difference between a 0.4 moa and 0.5 Mao rifle isn't gonna help a guy hit more targets.
View attachment 8471876
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ok thanks for taking the time to answer my elementary questions.
 
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#231
wildturkey2 said:
ok thanks for taking the time to answer my elementary questions.
Click to expand...
No problem, all good! Any well built 6mm can and will shoot small groups with quality components and good reloading practices, as long the shooter does their part and is operating the chosen cartridge within sane pressure levels.
 
#233
wildturkey2 said:
what freebore you running?
Click to expand...
I prefer the 170 freebore as I primarily run 115 dtacs. It also works will with 109 Berger, eldm, and 112 burners. If a guy's well stocked on 105 hybrids, the 120fb is better. I typically jump bullets 40-60k though. So I always get the longer freebore chambers available.
 
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