Hey fellows.. I've been busy getting ready plus shooting a large match this past weekend so I haven't been able to post any.. I thought some of you guys maybe interested in some 6.5 Lapua data I collected last week over my new Magnetospeed?? It's pretty telling considering I chronied over 50 rds... My favorite highlight sents getting this magnetospeed is I've never had an S-D over 9fps on my handloads so far!! That made me feel good about my loading ability because it's never been tested anyway except "groups." I need to purchase a concentricity gauge next "I guess" to see how straight I'm loading... I'll post this data up sometime tonight probably and along with it I shot 3 different primers as well: 205M, CCI450, and TulaAmmo KVB5.56M.... Theirs a velocity difference between the three you'll see... My S-D was best with 205M then came CCI450 but both were in the S-D 6 range... You'll see after I post so stay tuned... Thanks
NEW 6.5x47 Lapua Chrono Data HERE!!!
- Thread starter SHootSTraight22
- Start date
Re: NEW 6.5x47 Lapua Chrono Data Coming!!
I'll be putting it up.. Still unpacking everything from the weekend..Boxcar77 said:
Re: NEW 6.5x47 Lapua Chrono Data Coming!!
Last week I purchased a MagnetoSpeed to help with my dope for the weekend GAP Grind match shot at K&M in Tenn.. During the week before the match I shot new brass (fireforming it) and already formed brass.. Also two different lots of H4350 with 140gr Berger Hybrids... Three different primers were also used during my testing..
Data Obtained:
New Brass, @ 40gr H4350 new lot #,CCI450
Max- 2,778fps
Min- 2,751
Avg- 2,767
S-D 9.7
Fire Formed Brass, same lot # as above..
Fed 205M
39.9gr- 2,773, 2,782, 2,777fps
40- 2790, 2,775, 2,792fps
40.1- 2,798, 2,792, 2,793fps
S-D 9.1 (This S-D was the range for all loads combined, 39.9-40.1gr) Note: Notice how balanced my accuracy node is here.. I had an S-D of only 9.1fps using 3 different loads!!
CCI 450
39.9gr- 2,777, 2,774, 2,778fps
40- 2,795, 2,802, 2,781
40.1- 2,792, 2,792, 2,792 (Look at that load!!! I wished I had loaded more to test further!)
S-D 9.6
TulaAmmo 5.56M
39.9gr- 2,792, 2,782, 2,767fps
40- 2,793, 2,789, 2,783
40.1- 2,795, 2,818, 2,794
S-D 13.6fps
Note: I want to do more testing with these because they seem to shoot great groups even though S-D is higher.. ??
First shot of the day with 40gr H4350 and new brass, cold bore, CCI450...
My first cold bore shot was 2,777fps.. (This info should had been put at the top of the page, sorry..)
Using brand new unfired brass shot 1-47 rounds with 40gr H4350 same lot as above I got:
Max- 2,801
Min- 2,755
Avg- 2,779
S-D- 10fps
Note: S-D went up with a larger sample of bullets...
All the above rounds were shot with weather conditions of 79 degrees, 51% humitity @ around 700-750ft above sea level...
I also had my older lot of H4350 powder on hand and shot 2 rounds: 2,751fps, 2,737...
Once I arrived at the match and shot in conditions of around 60-65 degrees at around 459ft above sea level (lower altitude plus slightly colder) I got:
With 41.1gr H4350 and CCI450 primers,,
Max- 2,786fps
Min- 2,769
Avg- 2,775
S-D 8.8fps
This is with 5 rounds just to check before the match... Notice the same load at my home conditions and altitude shot at 2,792fps... I'm going to do more testing later just to perfect my load.. May drop down .001 in neck tension from using .002.. Meaning instead of a .288 bushing I'll use a .287....
I didn't do anything special to get a low S-D except double weigh powder (after I throw on a Charge Master I weigh on my old balance beam D7 Lyman model..) I usually have to add or take out 1-4 granules of powder from the pan.. I also hand anneal with a drill/torch.. I'm about to purchase an automatic annealer (I'm going to start a brass prep buisness and start refurbishing the PRS brass I'm giving after the matches, to put back into the circuit..Plus, I may offer service to some of the forum members if your interested, I just have to purchase everything first for bulk jobs.. Also, I'm going to start Cerakote painting as soon as my custom "medal closet oven" is insulated an done!!! It will keep me on my toes plus add to my disabled retirement check from the Army..
I hope this data helps some with their on 6.5x47Lapua.. I was very impressed with my S-D after seeing others at the match.. Some had up into the upper 20's... I must be doing something right.. Thank you Accurate Shooter forum for the advice and help I can scroil through on a daily basis!! I guess I need to purchase a concentricity gauge next to measure my cartridge straightness and to let me know what to modify.. Any advice on concentricity gauges would be great!
Last week I purchased a MagnetoSpeed to help with my dope for the weekend GAP Grind match shot at K&M in Tenn.. During the week before the match I shot new brass (fireforming it) and already formed brass.. Also two different lots of H4350 with 140gr Berger Hybrids... Three different primers were also used during my testing..
Data Obtained:
New Brass, @ 40gr H4350 new lot #,CCI450
Max- 2,778fps
Min- 2,751
Avg- 2,767
S-D 9.7
Fire Formed Brass, same lot # as above..
Fed 205M
39.9gr- 2,773, 2,782, 2,777fps
40- 2790, 2,775, 2,792fps
40.1- 2,798, 2,792, 2,793fps
S-D 9.1 (This S-D was the range for all loads combined, 39.9-40.1gr) Note: Notice how balanced my accuracy node is here.. I had an S-D of only 9.1fps using 3 different loads!!
CCI 450
39.9gr- 2,777, 2,774, 2,778fps
40- 2,795, 2,802, 2,781
40.1- 2,792, 2,792, 2,792 (Look at that load!!! I wished I had loaded more to test further!)
S-D 9.6
TulaAmmo 5.56M
39.9gr- 2,792, 2,782, 2,767fps
40- 2,793, 2,789, 2,783
40.1- 2,795, 2,818, 2,794
S-D 13.6fps
Note: I want to do more testing with these because they seem to shoot great groups even though S-D is higher.. ??
First shot of the day with 40gr H4350 and new brass, cold bore, CCI450...
My first cold bore shot was 2,777fps.. (This info should had been put at the top of the page, sorry..)
Using brand new unfired brass shot 1-47 rounds with 40gr H4350 same lot as above I got:
Max- 2,801
Min- 2,755
Avg- 2,779
S-D- 10fps
Note: S-D went up with a larger sample of bullets...
All the above rounds were shot with weather conditions of 79 degrees, 51% humitity @ around 700-750ft above sea level...
I also had my older lot of H4350 powder on hand and shot 2 rounds: 2,751fps, 2,737...
Once I arrived at the match and shot in conditions of around 60-65 degrees at around 459ft above sea level (lower altitude plus slightly colder) I got:
With 41.1gr H4350 and CCI450 primers,,
Max- 2,786fps
Min- 2,769
Avg- 2,775
S-D 8.8fps
This is with 5 rounds just to check before the match... Notice the same load at my home conditions and altitude shot at 2,792fps... I'm going to do more testing later just to perfect my load.. May drop down .001 in neck tension from using .002.. Meaning instead of a .288 bushing I'll use a .287....
I didn't do anything special to get a low S-D except double weigh powder (after I throw on a Charge Master I weigh on my old balance beam D7 Lyman model..) I usually have to add or take out 1-4 granules of powder from the pan.. I also hand anneal with a drill/torch.. I'm about to purchase an automatic annealer (I'm going to start a brass prep buisness and start refurbishing the PRS brass I'm giving after the matches, to put back into the circuit..Plus, I may offer service to some of the forum members if your interested, I just have to purchase everything first for bulk jobs.. Also, I'm going to start Cerakote painting as soon as my custom "medal closet oven" is insulated an done!!! It will keep me on my toes plus add to my disabled retirement check from the Army..
I hope this data helps some with their on 6.5x47Lapua.. I was very impressed with my S-D after seeing others at the match.. Some had up into the upper 20's... I must be doing something right.. Thank you Accurate Shooter forum for the advice and help I can scroil through on a daily basis!! I guess I need to purchase a concentricity gauge next to measure my cartridge straightness and to let me know what to modify.. Any advice on concentricity gauges would be great!
Thanks for sharing! Haven't used the 140's yet in mine still have around 1k 130VlD's to go through.
Would definitely be interested in seeing more results with the TulaAmmo primers. Did you find they were harder to seat?
As far as concentricity gauges, I have the 21st century shooting model and would recommend it. Also recommend getting the wheel with it. But if you want to spend the money get the Accuracy First Concentricity gauge.
Finally, how'd you do at the grind? Would love to get down there and shoot it some year.
Would definitely be interested in seeing more results with the TulaAmmo primers. Did you find they were harder to seat?
As far as concentricity gauges, I have the 21st century shooting model and would recommend it. Also recommend getting the wheel with it. But if you want to spend the money get the Accuracy First Concentricity gauge.
Finally, how'd you do at the grind? Would love to get down there and shoot it some year.
Well, to be absolutely honest and fair. I don't give one care what ES & SD figures say unless I see the results on a target at a distance of at least 200 yards then see how they perform at three times that distance.
The best ES & SD figures I have seen do not match accuracy results in my view. The results I find shooting competition matches and here that's at 500 metres. I am not happy at all if the 5 shot groups are over 2-3" at that distance.
At 200 yards I scrap a load as bad if it won't shoot less than 0.3" over 5 shots.
All my 3 competition rifles I only use 130gr maximum weight bullets, I believe anything heavier is just to heavy for the calibre. I am about to test the 123gr Lapua in search for even better accuracy.
I'd love to read what 5-10 shot groups are being achieved with low ES & SD figures.
Great cartridge calibre and my aim is to give my fellow competitors who use 6BR & 6Dasher a run for their money even though they are way more experienced than I am especially under bad conditions.
The best ES & SD figures I have seen do not match accuracy results in my view. The results I find shooting competition matches and here that's at 500 metres. I am not happy at all if the 5 shot groups are over 2-3" at that distance.
At 200 yards I scrap a load as bad if it won't shoot less than 0.3" over 5 shots.
All my 3 competition rifles I only use 130gr maximum weight bullets, I believe anything heavier is just to heavy for the calibre. I am about to test the 123gr Lapua in search for even better accuracy.
I'd love to read what 5-10 shot groups are being achieved with low ES & SD figures.
Great cartridge calibre and my aim is to give my fellow competitors who use 6BR & 6Dasher a run for their money even though they are way more experienced than I am especially under bad conditions.
Mega said:
Who said I didn't have my accuracy node figured out already?? I've been shooting this same gun for a year now that I developed the load for it on paper twice/two seperate powder lots.. The load was already developed, this was just me playing with my magnetospeed for the first time.. The chrono confirmed to me why I choose the load I did a year ago..
This is how I load develope... I do a Pressure/Ladder test first with .3-.5gr increments.... Then I do my variation of an OCW with .2gr intervals within the node I see while doing ladder/pressure test... Then I do a OCW with .1gr increments around what I think my load will be... The chrono is just for confirmation of what the paper is telling me plus to get velocity data for ballistic computer.. My first shot rounds count unlike most...
Mega said:
Mega, if you would read closer you would see I have low S-D with over 40 rounds... I've never had over 9 S-D for that matter with my load concerned.. Read closer, and if I wasn't clear enough I apologize..
+1 Accuracy First Concentricity gauge.
I had both and sold the 21st before they came out with the wheel. Both are made really well and you won't go wrong with either one. I think 21st Century makes outstanding products so does PMA Tools.
At first I used the tool trying to get all my match loads perfect! Now, I don't even measure concentricity and IMHO it's a waste of time with the 6.5X47 but that's me. I'll probably take heat for saying that... lol
I abandon the 140's they shot very well just not as well as the 130's. The 130's were such an improvement in accuracy I just went with what work better with my rifle.
I had both and sold the 21st before they came out with the wheel. Both are made really well and you won't go wrong with either one. I think 21st Century makes outstanding products so does PMA Tools.
At first I used the tool trying to get all my match loads perfect! Now, I don't even measure concentricity and IMHO it's a waste of time with the 6.5X47 but that's me. I'll probably take heat for saying that... lol
I abandon the 140's they shot very well just not as well as the 130's. The 130's were such an improvement in accuracy I just went with what work better with my rifle.
SHootSTraight22,
great post lots of good reference info here.
I did notice that you are going to drop the neck tension to .001 rather than .002 to help SD out.
Just a thought also try out .003 it really helped my chrono numbers for my 308win i know its a different caliber. I think it help get a complete powder burn/more uniform pressure build up for bullet release.
Like i said it just a thought and it cant hurt anything
great post lots of good reference info here.
I did notice that you are going to drop the neck tension to .001 rather than .002 to help SD out.
Just a thought also try out .003 it really helped my chrono numbers for my 308win i know its a different caliber. I think it help get a complete powder burn/more uniform pressure build up for bullet release.
Like i said it just a thought and it cant hurt anything
eric32 said:
eric32, I;m sorry I wasn't clear with what I ment with that.. I was saying that currently I shoot .002 (.288 bushing) and I'm about to try shooting .003 neck tension (.287 bushing). That would be .001 tighter.. I figured I'd do that because I noticed with some of my loaded rounds the bullets OAL have moved while within the case neck.. This last match I carried my ammo in protective boxes because of that.. Normally I use a little zip up pouches from SunRise Tactical.. I also purchased a Lee Collet die to try out.. Currently it doesn't reach but halfway down the neck because it was made for the 6.5 Creedmoore.. I got a guy who I can get to machine it short .075.... Has anyone tried this?? Keep in mind these rounds are for tactical/practical shooting also, that's one reason I'm interested in the collet die was to fix damaged case necks.. Has anyone ever used the collet die as a mandrel before, stopping before the neck pinches??
eric32 said:
You mentioned uniform powder burn, one thing I have watched is the little black carbon ring around the case neck.. I figured somethings right when the carbon ring is symetrical about halfway up the case.. Last time I loaded I let the bushings float just a cunt hair up so that way the bottom of my cases neck will seal the chamber better.. It seemed to work on these cases!
CharlieNC
Gold $$ Contributor
From the results you have reported so far there are few significant differences in the sd values. To put it in perspective you can barely conclude the 13.6 is worse than the bulk of the many 9.5 results. So while the sd is a very useful vs es, it requires the dreaded statistical evaluation to determine what degree of difference is real.
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