6.5WSM
- Thread starter ls1cwby
- Start date
- Oct 30, 2004
- 24,192
- 2,855
DrMike
Ballistician
- Nov 8, 2006
- 37,196
- 5,672
What powder are you wanting to use. Here is a load for a 130 AB with Retumbo:
Cartridge : 6.5 mm Rock (WSM)
Bullet : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 72.054 grain H2O = 4.678 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon Retumbo
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-20.0 86 57.60 2565 1900 31085 12483 94.9 1.614
-18.0 88 59.04 2636 2007 33349 12867 96.3 1.570
-16.0 91 60.48 2708 2117 35789 13217 97.4 1.527
-14.0 93 61.92 2779 2230 38420 13531 98.4 1.480
-12.0 95 63.36 2851 2345 41260 13804 99.1 1.429
-10.0 97 64.80 2921 2464 44324 14034 99.6 1.381
-08.0 99 66.24 2992 2584 47643 14218 99.9 1.335
-06.0 101 67.68 3061 2705 51233 14355 100.0 1.290
-04.0 104 69.12 3130 2828 55123 14471 100.0 1.247
-02.0 106 70.56 3198 2952 59345 14583 100.0 1.205 ! Near Maximum !
+00.0 108 72.00 3265 3078 63934 14690 100.0 1.165 ! Near Maximum !
+02.0 110 73.44 3332 3205 68925 14791 100.0 1.126 !DANGEROUS LOAD-DO NOT USE!
+04.0 112 74.88 3398 3334 74367 14886 100.0 1.089 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 76.32 3464 3464 80298 14975 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 77.76 3530 3597 86801 15057 100.0 1.018 !DANGEROUS LOAD-DO NOT USE!
+10.0 119 79.20 3595 3731 93862 15133 100.0 0.985 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 108 72.00 3402 3341 79915 14132 100.0 1.067 !DANGEROUS LOAD-DO NOT USE!
Cartridge : 6.5 mm Rock (WSM)
Bullet : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 72.054 grain H2O = 4.678 cm³
Cartridge O.A.L. L6: 2.860 inch = 72.64 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Hodgdon Retumbo
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-20.0 86 57.60 2565 1900 31085 12483 94.9 1.614
-18.0 88 59.04 2636 2007 33349 12867 96.3 1.570
-16.0 91 60.48 2708 2117 35789 13217 97.4 1.527
-14.0 93 61.92 2779 2230 38420 13531 98.4 1.480
-12.0 95 63.36 2851 2345 41260 13804 99.1 1.429
-10.0 97 64.80 2921 2464 44324 14034 99.6 1.381
-08.0 99 66.24 2992 2584 47643 14218 99.9 1.335
-06.0 101 67.68 3061 2705 51233 14355 100.0 1.290
-04.0 104 69.12 3130 2828 55123 14471 100.0 1.247
-02.0 106 70.56 3198 2952 59345 14583 100.0 1.205 ! Near Maximum !
+00.0 108 72.00 3265 3078 63934 14690 100.0 1.165 ! Near Maximum !
+02.0 110 73.44 3332 3205 68925 14791 100.0 1.126 !DANGEROUS LOAD-DO NOT USE!
+04.0 112 74.88 3398 3334 74367 14886 100.0 1.089 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 76.32 3464 3464 80298 14975 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 77.76 3530 3597 86801 15057 100.0 1.018 !DANGEROUS LOAD-DO NOT USE!
+10.0 119 79.20 3595 3731 93862 15133 100.0 0.985 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 108 72.00 3402 3341 79915 14132 100.0 1.067 !DANGEROUS LOAD-DO NOT USE!
- Thread starter
- #4
DrMike
Ballistician
- Nov 8, 2006
- 37,196
- 5,672
I would think that Retumbo would be a good place. I don't have data on my version of QL for the 140 grain AB, however, which is why I used the 130 grain.
Man Mike, with you throwing data up there, like that, it won't take long for me to find a M70 WSM to send into PacNor for a 6.5WSM! That load data looks excellent and I think the WSM case is a great blend between the 264 and 6.5-06....... Man, I hate when you do this. I really need a 6.5! Scotty
DrMike
Ballistician
- Nov 8, 2006
- 37,196
- 5,672
Now, Scotty, I can't see that you'd gain anything over your 270 WSM. However, it would be fun to have something different. Okay, you talked me into it. I'll start working on it tomorrow. :lol:
Powerstroke
Handloader
- Feb 24, 2006
- 1,798
- 51
6.5, 6.5, 6.5, 6.5, 6.5, 6.5 Scotty - you "NEED" one :grin:
The 6.5WSM is definatly a worth canidate.
The 6.5WSM is definatly a worth canidate.
- Thread starter
- #11
- Oct 30, 2004
- 24,192
- 2,855
ls1cwby":2ted6er1 said:
Can not wait!
- Thread starter
- #14
Should be able to give a report shortly, I'm picking up the gun tomorow. I will be trying the 140 AB to start with. Have 129gr SST and 130 Scirroco to try also.
That 140 AB is very long and will eat up some case space. Retumbo will be the first powder and I'll have to see what happens.
That 140 AB is very long and will eat up some case space. Retumbo will be the first powder and I'll have to see what happens.
257 Ackley
Handloader
- Nov 25, 2008
- 1,763
- 0
I am really interested in seeing a range report as well. This caliber is more intriguing than a 6.5X284 for long distance shooting with the great sectional density of the bullets available for the 6.5 caliber. Might have to sell the CDL .260 and buy a featherweight to build one from.
You son of a gun Joel!!!! I hope you build one. It will make my load work that much easier!
I really think the 6.5WSM would be a sweetheart of a rifle in a Featherweight will a good barrel on it. Or maybe a Super Grade!
I know RL22 and IMR7828 have really worked well in my 270WSM with the heavier bullet weights. I would think they would be decent for the 6.5's also. Pretty close really. Scotty
I really think the 6.5WSM would be a sweetheart of a rifle in a Featherweight will a good barrel on it. Or maybe a Super Grade!
I know RL22 and IMR7828 have really worked well in my 270WSM with the heavier bullet weights. I would think they would be decent for the 6.5's also. Pretty close really. Scotty
257 Ackley
Handloader
- Nov 25, 2008
- 1,763
- 0
I think buying a featherweight in a 270 or 300 WSM to do the caliber change to 6.5 would be simple. You wouldn't have to change the bolt face and I doubt there would be a feeding problem out of the magazine. I want to see the numbers over a chrony and what kind of accuracy comes from the range report first. I like calibers that are unique as long as they function well and add something to an existing cartridge that is out there. That is why I have a 338-06.
Do dies exist for the 6.5WSM? I haven't looked at any of the manufacturers lists to see if they are made already.
Do dies exist for the 6.5WSM? I haven't looked at any of the manufacturers lists to see if they are made already.
Joel, here is a set of Reddings! They aren't cheap, but here they are.
http://www.sinclairintl.com/.aspx/pid=3 ... _5_300_WSM
http://www.sinclairintl.com/.aspx/pid=3 ... _5_300_WSM
That would be good for forming, since I could tell the difference between 270WSM and 300WSM brass and loaded rounds, but I would think the 300WSM might have too much neck thickness after forming?
http://www.sinclairintl.com/.aspx/pid=3 ... _5_300_WSM
http://www.sinclairintl.com/.aspx/pid=3 ... _5_300_WSM
That would be good for forming, since I could tell the difference between 270WSM and 300WSM brass and loaded rounds, but I would think the 300WSM might have too much neck thickness after forming?
- Thread starter
- #19
First range report. After some break in and scope sighting I got to shoting some groups. All loads used Retumbo. Started at 59.0 gr with 140 AB, 130 Scirocco, and 129 SST. Much to my surprise the 140 AB loads had lots of pressure signs, Stiff bolt, extractor marks and severely flattened primers. So I stopped with the 140 AB. The 130 and 129 clocked at 2850fps, with the 129 SST making a 3 shot group of .8". 130 Scirocco was at about 1.5". Went up .6 gr at a time. At 61.4 gr the SST opened up to 2" and the scirocco shrunk to .5", velocity was up to 3160fps!! Ran out of day light at this point. There is still room to go as I was not seeing any pressure signs at 61.4 gr. Would like to get near 3250fps with the 130's. Can someone tell me how much of an affect on pressure bullet seating depth has. I have magazine lenght left but the throat is short. Would seating the 140 AB deep make more pressure than if it was out farther? I have about .110" left in the magazine.
Here something on the 6.5WSM
http://www.snipershide.com/forum/ubbthr ... er=1743602
There was always deal about using the 300WSM brass for the 6.5 vs using 270WSM. there was always a big deal about which WSM was the best 7WSM or 6.5WSM and alot of that came from the old SHORT MAG SITE and they had alot of good loading data wish I'd of copied it before they shut down. Sound like you got a nice rifle.
http://www.snipershide.com/forum/ubbthr ... er=1743602
There was always deal about using the 300WSM brass for the 6.5 vs using 270WSM. there was always a big deal about which WSM was the best 7WSM or 6.5WSM and alot of that came from the old SHORT MAG SITE and they had alot of good loading data wish I'd of copied it before they shut down. Sound like you got a nice rifle.
