.270 win 160 partition

[Bruce Mc]

O.K. Gerry got me interested in the 160 Partition for my .270 win. My buddies and I are planning a black bear hunt in north eastern Washington for 2016. We'd be going this year but one of the guys just retired from the Sheriff's Office and took another job. He doesn't have the vacation time built up. So to the point, could one of you gentlemen, pull up a quick load for the 160 Partition from a 22" barrel and an OAL of 3.340. And its good to see a few posts about the .270 win. I'm getting a little tired of the .280 this and .280 that. :lol:

 

[Dwh7271]

270??? Whazzat??? :lol: :lol: Just kidding. I set the pressure at 64k for the grouping below. If you want any particular ones broken out, just shout.

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 160, Nosler PART SSP 16324
Useable Case Capaci: 59.367 grain H2O = 3.855 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 64000 psi, or 441 MPa
or a maximum loading ratio or filling of 110 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

148 loads produced a Loading Ratio below user-defined minimum of 85%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-26 101.6 59.8 3.87 2929 100.0 64001 13721 1.116 ! Near Maximum !
Norma MRP 102.5 58.5 3.79 2907 99.9 64001 13882 1.113 ! Near Maximum !
PB Clermont PCL 517 107.0 62.5 4.05 2904 99.0 64001 13993 1.098 ! Near Maximum !
SNPE Vectan SP 12 106.9 62.4 4.04 2903 99.0 64001 13969 1.099 ! Near Maximum !
Vihtavuori N560 104.3 58.3 3.78 2902 98.2 64001 14226 1.108 ! Near Maximum !
ReloadSwiss RS 70 99.4 57.9 3.75 2899 100.0 64001 13452 1.099 ! Near Maximum !
Accurate MAGPRO 104.5 60.8 3.94 2893 97.0 64001 14309 1.114 ! Near Maximum !
Alliant Reloder-25 110.0 59.9 3.88 2893 100.0 62642 13326 1.113 ! Near Maximum !
IMR 7828 SSC 102.9 57.9 3.75 2890 98.6 64001 13769 1.098 ! Near Maximum !
IMR 7828 108.8 57.9 3.75 2890 98.6 64001 13769 1.098 ! Near Maximum !
Bofors RP5/NP ~approximation 104.6 57.8 3.75 2879 99.4 64001 13679 1.113 ! Near Maximum !
Raufoss RA15 104.6 57.8 3.75 2879 99.4 64001 13679 1.113 ! Near Maximum !
Alliant Reloder-22 104.6 57.8 3.75 2879 99.4 64001 13679 1.113 ! Near Maximum !
Winchester WXR 107.3 58.1 3.77 2878 99.3 64001 13696 1.114 ! Near Maximum !
Bofors RP15 107.3 58.1 3.77 2878 99.3 64001 13696 1.114 ! Near Maximum !
ADI AR 2213 103.9 57.5 3.72 2876 98.5 64001 13636 1.097 ! Near Maximum !
ADI AP 2214 107.7 61.2 3.97 2870 98.7 64001 13470 1.094 ! Near Maximum !
ReloadSwiss RS 60 93.0 53.4 3.46 2869 100.0 64001 12301 1.108 ! Near Maximum !
Ramshot Magnum 104.2 62.1 4.03 2864 99.7 64001 13085 1.105 ! Near Maximum !
Alliant Reloder-23 107.1 57.3 3.72 2847 100.0 64001 12332 1.121 ! Near Maximum !
Rottweil R905 105.7 57.4 3.72 2847 98.2 64001 13335 1.114 ! Near Maximum !
Alliant Reloder-17 91.9 52.8 3.42 2845 100.0 64001 12210 1.116 ! Near Maximum !
Elcho 17 91.9 52.8 3.42 2845 100.0 64001 12210 1.116 ! Near Maximum !
Bofors RP5 NT ~approximation 107.6 60.0 3.89 2843 96.7 64001 13446 1.100 ! Near Maximum !
ADI AR 2209 100.7 54.8 3.55 2839 99.3 64001 12945 1.104 ! Near Maximum !
Alliant Reloder-19 101.3 55.4 3.59 2837 99.3 64001 13021 1.112 ! Near Maximum !
PB Clermont PCL 511 93.7 54.6 3.54 2831 100.0 64001 12590 1.119 ! Near Maximum !
Bofors RP14 ~approximation 102.0 55.8 3.62 2831 99.3 64001 12930 1.112 ! Near Maximum !
Vihtavuori N570 110.0 63.5 4.11 2830 93.1 55770 15051 1.172 ! Near Maximum !
Ramshot Hunter 96.8 54.7 3.55 2829 100.0 64001 12573 1.119 ! Near Maximum !
ReloadSwiss RS 62 95.3 54.7 3.54 2828 100.0 64001 12334 1.131 ! Near Maximum !
Winchester 760 91.4 52.9 3.43 2827 99.9 64001 12625 1.120 ! Near Maximum !
Hodgdon H414 91.4 52.9 3.43 2827 99.9 64001 12625 1.120 ! Near Maximum !
Bofors RP30 110.0 60.2 3.90 2823 98.2 57595 14012 1.167 ! Near Maximum !
Norma MRP 2 110.0 60.2 3.90 2823 98.2 57595 14012 1.167 ! Near Maximum !
Bofors RP4 ~approximation 99.2 54.3 3.52 2814 99.2 64001 12683 1.112 ! Near Maximum !
Raufoss RA4 99.2 54.3 3.52 2814 99.2 64001 12683 1.112 ! Near Maximum !
Norma 204 96.1 54.3 3.52 2814 99.2 64001 12683 1.112 ! Near Maximum !
Hodgdon H4831 106.6 56.7 3.67 2814 97.9 64001 12846 1.109 ! Near Maximum !
Hodgdon H4831 SC 102.5 56.7 3.67 2814 97.9 64001 12846 1.109 ! Near Maximum !
Somchem S365 98.3 53.5 3.47 2812 100.0 64001 11667 1.130 ! Near Maximum !
Vihtavuori N550 93.6 52.3 3.39 2807 100.0 64001 12165 1.129 ! Near Maximum !
Norma URP 96.3 52.1 3.38 2807 100.0 64001 12016 1.125 ! Near Maximum !
Bofors RP19 ~approximation 96.4 52.2 3.38 2807 100.0 64001 12013 1.125 ! Near Maximum !
Alliant Reloder-33 110.0 66.2 4.29 2804 93.1 55059 14832 1.179
Accurate 4350 95.5 52.2 3.38 2802 100.0 64001 11976 1.143 ! Near Maximum !
Somchem S385 101.5 56.1 3.64 2802 99.7 64001 12439 1.131 ! Near Maximum !
Winchester Supreme 780 99.8 57.6 3.73 2793 99.2 64001 12372 1.117 ! Near Maximum !
Bofors RP4 NT ~approximation 96.9 53.8 3.49 2791 99.8 64001 12204 1.125 ! Near Maximum !
IMR 4831 101.1 53.0 3.43 2790 100.0 64001 11762 1.134 ! Near Maximum !
Accurate 3100 104.6 57.2 3.71 2789 100.0 64001 12069 1.144 ! Near Maximum !
Vihtavuori N165 106.8 57.8 3.75 2788 99.5 64001 12159 1.121 ! Near Maximum !
Rottweil R904 100.1 54.0 3.50 2787 98.5 64001 12380 1.114 ! Near Maximum !
SNPE Vectan SP 11 90.1 50.9 3.30 2784 100.0 64001 11568 1.124 ! Near Maximum !
Ramshot Big Game 87.2 50.8 3.29 2779 100.0 64001 11453 1.124 ! Near Maximum !
Hodgdon H4350 98.8 52.9 3.43 2777 99.7 64001 11985 1.117 ! Near Maximum !
IMR 4350 97.0 52.8 3.42 2776 99.7 64001 11959 1.117 ! Near Maximum !
Lovex S070 96.1 52.0 3.37 2776 99.9 64001 11986 1.132 ! Near Maximum !
Lovex S071 110.0 56.9 3.69 2774 100.0 62825 12044 1.154 ! Near Maximum !
IMR 4895 86.9 47.6 3.08 2773 100.0 64001 11458 1.130 ! Near Maximum !
Vihtavuori N160 106.8 56.0 3.63 2772 98.4 64001 12161 1.116 ! Near Maximum !
ReloadSwiss RS 52 87.5 49.5 3.21 2770 100.0 64001 11256 1.133 ! Near Maximum !
Bofors RP11 ~approximation 87.8 48.0 3.11 2769 100.0 64001 11429 1.129 ! Near Maximum !
Raufoss RA11 87.8 48.0 3.11 2769 100.0 64001 11429 1.129 ! Near Maximum !
Alliant Reloder-15 87.8 48.0 3.11 2769 100.0 64001 11429 1.129 ! Near Maximum !
Bofors RP7 NT ~approximation 91.2 50.3 3.26 2769 100.0 64001 11623 1.106 ! Near Maximum !
ADI AR 2217 110.0 59.5 3.86 2769 97.6 57168 13133 1.153 ! Near Maximum !
Hodgdon H1000 110.0 59.5 3.86 2769 97.6 57168 13133 1.153 ! Near Maximum !
Hodgdon H380 89.1 49.8 3.23 2768 100.0 64001 11600 1.132 ! Near Maximum !
Hodgdon Hybrid 100V 98.9 52.3 3.39 2766 100.0 64001 11088 1.126 ! Near Maximum !
Norma 203B 88.2 48.2 3.13 2764 100.0 64001 11337 1.131 ! Near Maximum !
PB Clermont PCL 516 86.0 50.2 3.25 2762 100.0 64001 11480 1.123 ! Near Maximum !
ReloadSwiss RS 50 89.2 50.8 3.29 2759 100.0 64001 11630 1.125 ! Near Maximum !
Somchem S361 99.0 57.7 3.74 2759 97.9 64001 12153 1.124 ! Near Maximum !
Rottweil R907 94.0 50.5 3.27 2758 99.7 64001 11810 1.126 ! Near Maximum !
Bofors RP7 94.0 50.5 3.27 2758 99.7 64001 11810 1.126 ! Near Maximum !
IMR 4007 SSC 91.1 50.5 3.27 2758 99.7 64001 11802 1.126 ! Near Maximum !
Elcho TR140 - preliminary data 88.8 50.2 3.25 2753 100.0 64001 11310 1.128 ! Near Maximum !
IMR 4320 89.8 48.3 3.13 2753 100.0 64001 11037 1.117 ! Near Maximum !
Lovex S065 95.1 50.9 3.30 2753 100.0 64001 11514 1.132 ! Near Maximum !
Norma 203 old 89.3 49.4 3.20 2751 100.0 64001 11158 1.145 ! Near Maximum !
Bofors RP3 89.3 49.4 3.20 2751 100.0 64001 11158 1.145 ! Near Maximum !
ADI AR 2206H 85.2 46.6 3.02 2751 100.0 64001 11149 1.128 ! Near Maximum !
Rottweil R903 91.3 49.4 3.20 2747 100.0 64001 11070 1.145 ! Near Maximum !
Bofors RP3 NT ~approximation 92.8 50.5 3.27 2747 100.0 64001 11296 1.117 ! Near Maximum !
SNPE Vectan SP 9 85.8 48.5 3.14 2746 100.0 64001 11075 1.125 ! Near Maximum !
Somchem S355 91.5 49.0 3.18 2745 100.0 64001 11088 1.138 ! Near Maximum !
ADI AR 2208 90.5 48.1 3.11 2741 100.0 64001 11059 1.118 ! Near Maximum !
Hodgdon VARGET 90.8 48.1 3.11 2741 100.0 64001 11059 1.118 ! Near Maximum !
IMR 4064 91.2 47.2 3.06 2732 100.0 64001 10844 1.123 ! Near Maximum !
Lovex S062 88.8 47.3 3.06 2720 100.0 64001 10667 1.138 ! Near Maximum !
Hodgdon Retumbo 110.0 60.5 3.92 2715 99.0 49716 13686 1.233
ADI AR 2225 110.0 60.5 3.92 2715 99.0 49716 13686 1.233
Accurate 2700 91.2 52.1 3.38 2715 99.6 64001 11171 1.129 ! Near Maximum !
Norma 201 86.3 46.2 2.99 2712 100.0 64001 10618 1.140 ! Near Maximum !
IMR 3031 86.9 44.4 2.88 2708 100.0 64001 10262 1.140 ! Near Maximum !
ReloadSwiss RS 80 110.0 65.3 4.23 2708 92.0 49727 14386 1.235
Accurate 4064 88.7 47.5 3.08 2705 100.0 64001 10462 1.166 ! Near Maximum !
Rottweil R902 87.9 46.4 3.01 2704 100.0 64001 10493 1.141 ! Near Maximum !
Vihtavuori N150 96.6 49.9 3.23 2704 100.0 64001 10455 1.137 ! Near Maximum !
Bofors RP2 NT ~approximation 85.4 46.4 3.01 2701 100.0 64001 10408 1.123 ! Near Maximum !
Vihtavuori N540 87.7 48.5 3.15 2698 100.0 64001 10456 1.137 ! Near Maximum !
Lovex S060 86.2 45.9 2.97 2697 100.0 64001 10396 1.121 ! Near Maximum !
Norma 202 85.5 46.0 2.98 2695 100.0 64001 10277 1.138 ! Near Maximum !
ADI AR 2218 110.0 64.1 4.16 2685 89.3 50037 14504 1.225
ADI AR 2206 85.7 46.4 3.01 2685 100.0 64001 10238 1.121 ! Near Maximum !
Lovex D100 110.0 64.8 4.20 2681 87.8 57876 12397 1.167 ! Near Maximum !
Vihtavuori N140 87.5 47.0 3.04 2670 100.0 64001 9911 1.138 ! Near Maximum !
Vihtavuori N135 92.8 46.0 2.98 2656 100.0 64001 9662 1.149 ! Near Maximum !
Vihtavuori 24N41 110.0 64.1 4.16 2652 84.8 52958 12894 1.203

 

[6mm Remington]

Bruce just exactly what is a .270??? Never heard of such an animal before. :grin:

 

[Bruce Mc]

Thanks for the quickload Dwh, that will do nicely.

 

[Dwh7271]

You are welcome!

 

[SJB358]

Man, makes me wanna try some of them from the 270 WSM someday. The 270 Win at 2850 would be a strong load! I'd hunt the tar outta that. Decent BC too for being a semi-spitzer.

 

[filmjunkie4ever]

This is something I have never tried to use yet either. It only adds to the versatility of an already way versatile load in my opinion. O'Connor wrote in a couple of his books about how Dominion Cartridge Co. in Canada loaded a 160 grain bullet getting roughly 2800 fps in factory form back in the day. He claimed it was a great bullet and for greater north hunting, a nice all-around choice.

 

[gerry]

This is something I have never tried to use yet either. It only adds to the versatility of an already way versatile load in my opinion. O'Connor wrote in a couple of his books about how Dominion Cartridge Co. in Canada loaded a 160 grain bullet getting roughly 2800 fps in factory form back in the day. He claimed it was a great bullet and for greater north hunting, a nice all-around choice.

It was called the Kling Kor Soft Point (KKSP) I wish I could still find them. Actually I wish there were more Canadian bullet makers.

Bruce good luck on finding a good load with the 160 gr Partition, my work up was easy with the bullet. While lighter bullets would obviously work well on a bear the 160 gr PT is one excellent bullet and is super cool too.

Looking at that Quickload data there look to be some really great loads. Of that list I may give IMR 7828 ssc a try after the Magnum is gone.

 

[Bruce Mc]

Gerry, I bought a can of 7828 ssc today. I actually bought it to try with the 150 Partition. But I'll try it on the 160 also. I ran the 160 out with my pejsa program and it retains more energy than the 150 with only a few inches more drop at 400 yds. Looks good for a long range thumper. Now I have to start watching the pro shop for some blems.

 

[hubcap]

I think I,ll try 7828 also. I have some 160,s loaded with RL-22 waiting for range day. Already did some testing with IMR-4831. Got 2825 with that powder. Had to push them pretty hard though. It does look like 7828 and RL-22 are the better bets. Should be able to knock down 2800 pretty easy. With an SD of .298 the 160 PT rivals a 200 gr. PT in 30 cal. The 160 is certainly an attractive option for the .270.

 

[gerry]

Bruce and hubcap I look forward to seeing your results, hope you keep us up to date.

Along with IMR 7828 ssc I have some RL 22 to try as well. The .298 s.d. of the 160 gr Partition caught my eye as well and it compares favorably to the 200 gr PT as you mentioned. Loaded to 3000 fps in a 270 WSM or 3100 fps in a 270 Wby would be an awesome load too.

 

[preacher]

I found some and I'm certainly going to give them a whirl! I have spoken with several ballisticians through the years and they all say the same thing; if you want speed and killing power in a short barrel use heavy bullets with slower powders! I like how heavier bullets just thump critters, even though I use fast/light just as often. There is something reassuring about heavy bullets in the deep woods, no matter the game.

 

[SJB358]

Bruce and hubcap I look forward to seeing your results, hope you keep us up to date.

Along with IMR 7828 ssc I have some RL 22 to try as well. The .298 s.d. of the 160 gr Partition caught my eye as well and it compares favorably to the 200 gr PT as you mentioned. Loaded to 3000 fps in a 270 WSM or 3100 fps in a 270 Wby would be an awesome load too.

I've got some. Just haven't tried them yet. They should be wicked from my 270 WSM

 

[gerry]

Was wondering about this thread yesterday and if anyone has done some work with it in the last while. I hope to try some more loads soon. Scotty, I bet you would get an easy 3000 fps in your WSM.............

 

[hubcap]

Jerry, I will hit the range late next week with the 160 PT using RL-22 and IMR-7828 and IMR-4831. I will post results.

 

[Bruce Mc]

I'm gonna try and hit the range Friday but I'll be trying out the 150s. I can't find any 160s. The 160 gr at around 3000+ would be awesome. Even at around 2850 or so from the .270 win the bullet should be a crusher.

 

[gerry]

Great guys, I'll post up results as well when I test them some more.

 

[preacher]

Hey Uncle Bruce- I got mine off of Widener's Reloading web site, they have both the 150 and 160 partitions. P.S. I used to move oilfield equipment all in your area up until 1980, then went to work for Baroid until I went to Oklahoma for Bible College in '87! I was reared in Liberty Co. I sure miss the seafood! :grin: However, I am going to South Padre Island In August on vacation, yeah!

 

[Oldtrader3]

A 130 grain Partition in the .270 at 3000 fps will go right through the average black bear, lengthwise?

 

[preacher]

I bet it would, although the few bears I've seen here in Utah were pretty small. The biggest black bear I've ever seen, in a zoo or in the wild was a wild one in Estes park, Co. It had been eating trash in town, and I saw it behind the Stanley Hotel. I'm not a good judge but that sucker was huge! Big head, small ears and rolly polly fat, ha.