Tweet
Anyone try getting a 260 REM out to 1000 yds? I loaded a few 142gr Sierra Match Kings with 46.0gr of H4831SC. Expecting 2650fps. What are the chances these will make the distance?
BTW, Happy New Year
BTW, Happy New Year
-
Jim
sigpic -
Code:Tabular trajectory data at Non-Std. Atmosphere Gunsite altitude : 1200 ft. Air density : 0.073824 lb./ft³ ------------------------------------------------------------------------------------- Gun / Ammunition : 260 Bullet : .264, 142, Sierra HPBT MatchK 1742 Bullet weight : 142 grains or 9.20 Grams Muzzle velocity : 2650 fps Crosswind speed : 10 Mph Ballistic Coefficient(s) (G1): C1=0.584@V>2850 fps; C2=0.570@V>2400 fps; C3=0.565@V>2050 fps; C4=0.540@V>0 fps; Optimum trajectory information : Optimum sight-in range (X) = 264 Yds. with max. ordinate above LOS at range (M)= 151 Yds. and max. point blank range (P)= 309 Yds. ------------------------------------------------------------------------------------- Sight-in clicks, 1 click = 0.915 cm/100 yd. or 0.36 in/100 yd. Height of sight above bore axis = 5.715 cm or 2.25 inch Gun is zeroed-in at 200 yds, by sighting-in at level firing ------------------------------------------------------------------------------------- Range Velo Time of Energy Path Deflection Total Sight correction Target city flight to at crosswind drop for setting new lead LOS of 10.0 Mph zero range 33 fps ------------------------------------------------------------------------------------- ·Yards fps s ft.lbs. in. in. MOA in. Clicks MOA yds · ------------------------------------------------------------------------------------- | 0 2650 0.0000 2214 -2.3 0.0 ----- 0.0 ------ ----- 0.00 | 100 2501 0.1165 1971 +1.6 0.6 0.55 2.6 -4.5 -1.55 1.27 M 123 2467 0.1439 1919 +1.8 0.8 0.63 3.9 -4.0 -1.37 1.57 X 200 2356 0.2392 1750 0.0 2.3 1.08 10.6 0.0 0.00 2.62 P 260 2271 0.3173 1626 -4.0 4.0 1.48 18.5 +4.3 +1.46 3.47 | 300 2215 0.3711 1547 -8.0 5.5 1.76 25.1 +7.4 +2.54 4.06 | 400 2079 0.5112 1363 -23.1 10.3 2.45 46.6 +16.0 +5.51 5.59 | 500 1943 0.6586 1191 -45.7 16.3 3.11 75.7 +25.4 +8.74 7.20 | 600 1812 0.8185 1035 -78.0 24.5 3.90 114.4 +36.1 +12.42 8.95 | 700 1688 0.9922 898 -121.6 35.2 4.80 164.5 +48.2 +16.59 10.85 | 800 1570 1.1776 777 -177.4 47.9 5.71 226.7 +61.6 +21.18 12.88 | 900 1459 1.3737 671 -246.2 62.4 6.63 301.9 +75.9 +26.12 15.02 | 1000 1358 1.5873 582 -332.9 80.1 7.65 395.0 +92.4 +31.79 17.36 ------------------------------------------------------------------------------------- M = Peak vs. L.O.S, X = Set Zero, P = Max. Point Blank Range Elevation above Angle of Site (0.0 deg.) = 0.1025 deg.Randall Rausch
AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Barrel, sight and trigger work on most pistols and shotguns.
Most work performed while-you-wait. -
Thanks AR15Barrels.
At 1358fps, the MK bullet should still be stable. So, I guess it can reach out there.
Which program generated that table?Jim
sigpicComment
-
If you have your chamber opened up to .260AI you can still shoot .260 Rem. out of it in a pinch, but have performance real close to 6.5x.284 without the extreme throat wear of it.
sigpic
DILLIGAF
"Never attribute to malice that which can be adequately explained by stupidity, but don't rule out malice"
"Once is Happenstance, Twice is Coincidence, Thrice is Enemy Action"
"The flak is always heaviest, when you're over the target"Comment
-
Hmmmm!
Nah. This is still a hunting rifle. I'm just having some fun with it. If I decide to get serious I'll go with a real LR rifle.Jim
sigpicComment
-
I was pushing the SMK 142gr 2950fps out of a 28" barrel in .260 Remington. Accuracy wasn't optimal though. I needed to dial it down or up to find a better pulse in the pressure curve. This was using H4350.Last edited by ocabj; 01-01-2008, 9:56 AM.
Distinguished Rifleman #1924
NRA Certified Instructor (Rifle and Metallic Cartridge Reloading) and RSO
NRL22 Match Director at WEGC
https://www.ocabj.netComment
-
Randall Rausch
AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Barrel, sight and trigger work on most pistols and shotguns.
Most work performed while-you-wait.Comment
-
Just use JBM. You can run it direct off the author's website, or download the CGIs and run it off your own Apache box.
Distinguished Rifleman #1924
NRA Certified Instructor (Rifle and Metallic Cartridge Reloading) and RSO
NRL22 Match Director at WEGC
https://www.ocabj.netComment
-
I just use it because it came with Quickload.
If you are a reloader who likes to work outside of what normal loading manuals will tell you, Quickload is THE piece of software to own.
If you just need a drop table, JBM is certainly the way to go.
For example, here is a quickload pass on your 142 SMK in a 24" barreled 260 loaded to 60,000 PSI...
It would seem that you can do a LOT better than 2650 fps.Code:Cartridge : .260 Rem Bullet : .264, 142, Sierra HPBT MatchK 1742 Cartridge O.A.L. L6: 2.800 inch or 71.12 mm Barrel Length : 24.0 inch or 609.6 mm Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 60000 psi, or 413 MPa or a maximum loading ratio or filling of 105 % 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 ! 79 loads produced a Loading Ratio below user-defined minimum of 80%. 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 --------------------------------- ----------------------------------------------------------------- Vihtavuori N560 105.0 46.1 2.99 2823 96.4 57225 12658 1.220 ! Near Maximum ! ADI AR 2213 104.8 45.8 2.97 2823 97.1 60000 12203 1.191 !DANGEROUS LOAD-DO NOT USE! Somchem S365 102.8 43.1 2.79 2801 100.0 60000 10525 1.214 !DANGEROUS LOAD-DO NOT USE! Ramshot Hunter 97.6 43.7 2.83 2799 99.8 60000 11364 1.209 !DANGEROUS LOAD-DO NOT USE! ADI AR 2209 101.1 43.7 2.83 2796 98.3 60000 11566 1.197 !DANGEROUS LOAD-DO NOT USE! Winchester 760 95.3 42.3 2.74 2793 99.4 60000 11299 1.213 !DANGEROUS LOAD-DO NOT USE! Norma MRP 105.0 45.6 2.96 2790 98.8 53738 12404 1.255 ! Near Maximum ! IMR 7828 SSC 105.0 45.4 2.94 2784 96.5 56335 12135 1.224 ! Near Maximum ! IMR 4350 99.5 41.4 2.68 2782 99.6 60000 11033 1.209 !DANGEROUS LOAD-DO NOT USE! Vihtavuori N550 95.2 41.8 2.71 2779 100.0 60000 10947 1.222 !DANGEROUS LOAD-DO NOT USE! Accurate XMR 4350 99.5 41.9 2.71 2777 100.0 60000 10770 1.234 !DANGEROUS LOAD-DO NOT USE! IMR 4831 102.7 43.1 2.79 2772 100.0 60000 10827 1.224 !DANGEROUS LOAD-DO NOT USE! Raufoss RA4 102.8 43.3 2.81 2771 98.1 60000 11306 1.207 !DANGEROUS LOAD-DO NOT USE! Norma 204 100.7 43.3 2.81 2771 98.1 60000 11306 1.207 !DANGEROUS LOAD-DO NOT USE! Winchester WXR 105.0 45.4 2.94 2769 97.6 54678 12127 1.250 ! Near Maximum ! Lovex S070 103.8 43.0 2.78 2765 100.0 60000 10853 1.232 !DANGEROUS LOAD-DO NOT USE! Hodgdon H4350 101.2 43.1 2.79 2765 97.6 60000 11262 1.203 !DANGEROUS LOAD-DO NOT USE! Somchem S385 104.9 44.9 2.91 2765 99.0 60000 11202 1.224 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-19 105.0 43.7 2.83 2763 98.0 57548 11545 1.226 ! Near Maximum ! Ramshot BigGame 95.8 40.6 2.63 2758 100.0 60000 10345 1.218 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan SP 11 93.4 40.6 2.63 2757 100.0 60000 10333 1.218 !DANGEROUS LOAD-DO NOT USE! Hodgdon H380 96.7 42.0 2.72 2750 98.8 60000 11022 1.227 !DANGEROUS LOAD-DO NOT USE! Rottweil R904 102.3 43.1 2.79 2740 97.2 60000 11030 1.212 !DANGEROUS LOAD-DO NOT USE! IMR 4895 91.0 37.5 2.43 2740 100.0 60000 9604 1.204 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-22 105.0 44.7 2.90 2736 97.3 52562 11978 1.272 ! Near Maximum ! Raufoss RA15 105.0 44.7 2.90 2736 97.3 52562 11978 1.272 ! Near Maximum ! Raufoss RA11 90.8 38.2 2.48 2736 100.0 60000 10103 1.228 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-15 90.8 38.2 2.48 2736 100.0 60000 10103 1.228 !DANGEROUS LOAD-DO NOT USE! Hodgdon H414 91.9 41.6 2.70 2735 97.5 60000 10975 1.224 !DANGEROUS LOAD-DO NOT USE! Norma 203B 91.2 38.4 2.49 2733 100.0 60000 10030 1.229 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan Sp 7 90.6 40.9 2.65 2733 100.0 60000 10123 1.228 !DANGEROUS LOAD-DO NOT USE! Hodgdon H4831 SC 105.0 45.6 2.96 2727 95.7 55237 11662 1.239 ! Near Maximum ! Rottweil R903 95.8 39.5 2.56 2726 100.0 60000 9936 1.241 !DANGEROUS LOAD-DO NOT USE! Norma 203 old 95.7 39.4 2.55 2725 100.0 60000 9920 1.242 !DANGEROUS LOAD-DO NOT USE! PB Clermont PCL 516 88.9 39.9 2.58 2724 100.0 60000 10213 1.223 !DANGEROUS LOAD-DO NOT USE! Accurate MAGPRO 105.0 46.8 3.04 2721 93.3 51417 12342 1.285 ! Near Maximum ! IMR 4320 89.8 38.4 2.49 2719 100.0 60000 9748 1.214 !DANGEROUS LOAD-DO NOT USE! Winchester 748 83.4 37.8 2.45 2715 100.0 60000 9512 1.226 !DANGEROUS LOAD-DO NOT USE! Rottweil R907 91.2 40.1 2.60 2715 99.0 60000 10480 1.228 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan SP 9 88.6 38.5 2.50 2711 100.0 60000 9789 1.225 !DANGEROUS LOAD-DO NOT USE! Hodgdon BL-C2 84.5 38.7 2.51 2708 100.0 60000 9707 1.235 !DANGEROUS LOAD-DO NOT USE!
Randall Rausch
AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Barrel, sight and trigger work on most pistols and shotguns.
Most work performed while-you-wait.Comment
-
That's alot of !DANGEROUS LOAD-DO NOT USE!. I think I like my rifles to stay in one pieceI just use it because it came with Quickload.
If you are a reloader who likes to work outside of what normal loading manuals will tell you, Quickload is THE piece of software to own.
If you just need a drop table, JBM is certainly the way to go.
For example, here is a quickload pass on your 142 SMK in a 24" barreled 260 loaded to 60,000 PSI...
It would seem that you can do a LOT better than 2650 fps.Code:Cartridge : .260 Rem Bullet : .264, 142, Sierra HPBT MatchK 1742 Cartridge O.A.L. L6: 2.800 inch or 71.12 mm Barrel Length : 24.0 inch or 609.6 mm Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 60000 psi, or 413 MPa or a maximum loading ratio or filling of 105 % 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 ! 79 loads produced a Loading Ratio below user-defined minimum of 80%. 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 --------------------------------- ----------------------------------------------------------------- Vihtavuori N560 105.0 46.1 2.99 2823 96.4 57225 12658 1.220 ! Near Maximum ! ADI AR 2213 104.8 45.8 2.97 2823 97.1 60000 12203 1.191 !DANGEROUS LOAD-DO NOT USE! Somchem S365 102.8 43.1 2.79 2801 100.0 60000 10525 1.214 !DANGEROUS LOAD-DO NOT USE! Ramshot Hunter 97.6 43.7 2.83 2799 99.8 60000 11364 1.209 !DANGEROUS LOAD-DO NOT USE! ADI AR 2209 101.1 43.7 2.83 2796 98.3 60000 11566 1.197 !DANGEROUS LOAD-DO NOT USE! Winchester 760 95.3 42.3 2.74 2793 99.4 60000 11299 1.213 !DANGEROUS LOAD-DO NOT USE! Norma MRP 105.0 45.6 2.96 2790 98.8 53738 12404 1.255 ! Near Maximum ! IMR 7828 SSC 105.0 45.4 2.94 2784 96.5 56335 12135 1.224 ! Near Maximum ! IMR 4350 99.5 41.4 2.68 2782 99.6 60000 11033 1.209 !DANGEROUS LOAD-DO NOT USE! Vihtavuori N550 95.2 41.8 2.71 2779 100.0 60000 10947 1.222 !DANGEROUS LOAD-DO NOT USE! Accurate XMR 4350 99.5 41.9 2.71 2777 100.0 60000 10770 1.234 !DANGEROUS LOAD-DO NOT USE! IMR 4831 102.7 43.1 2.79 2772 100.0 60000 10827 1.224 !DANGEROUS LOAD-DO NOT USE! Raufoss RA4 102.8 43.3 2.81 2771 98.1 60000 11306 1.207 !DANGEROUS LOAD-DO NOT USE! Norma 204 100.7 43.3 2.81 2771 98.1 60000 11306 1.207 !DANGEROUS LOAD-DO NOT USE! Winchester WXR 105.0 45.4 2.94 2769 97.6 54678 12127 1.250 ! Near Maximum ! Lovex S070 103.8 43.0 2.78 2765 100.0 60000 10853 1.232 !DANGEROUS LOAD-DO NOT USE! Hodgdon H4350 101.2 43.1 2.79 2765 97.6 60000 11262 1.203 !DANGEROUS LOAD-DO NOT USE! Somchem S385 104.9 44.9 2.91 2765 99.0 60000 11202 1.224 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-19 105.0 43.7 2.83 2763 98.0 57548 11545 1.226 ! Near Maximum ! Ramshot BigGame 95.8 40.6 2.63 2758 100.0 60000 10345 1.218 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan SP 11 93.4 40.6 2.63 2757 100.0 60000 10333 1.218 !DANGEROUS LOAD-DO NOT USE! Hodgdon H380 96.7 42.0 2.72 2750 98.8 60000 11022 1.227 !DANGEROUS LOAD-DO NOT USE! Rottweil R904 102.3 43.1 2.79 2740 97.2 60000 11030 1.212 !DANGEROUS LOAD-DO NOT USE! IMR 4895 91.0 37.5 2.43 2740 100.0 60000 9604 1.204 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-22 105.0 44.7 2.90 2736 97.3 52562 11978 1.272 ! Near Maximum ! Raufoss RA15 105.0 44.7 2.90 2736 97.3 52562 11978 1.272 ! Near Maximum ! Raufoss RA11 90.8 38.2 2.48 2736 100.0 60000 10103 1.228 !DANGEROUS LOAD-DO NOT USE! Alliant Reloder-15 90.8 38.2 2.48 2736 100.0 60000 10103 1.228 !DANGEROUS LOAD-DO NOT USE! Hodgdon H414 91.9 41.6 2.70 2735 97.5 60000 10975 1.224 !DANGEROUS LOAD-DO NOT USE! Norma 203B 91.2 38.4 2.49 2733 100.0 60000 10030 1.229 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan Sp 7 90.6 40.9 2.65 2733 100.0 60000 10123 1.228 !DANGEROUS LOAD-DO NOT USE! Hodgdon H4831 SC 105.0 45.6 2.96 2727 95.7 55237 11662 1.239 ! Near Maximum ! Rottweil R903 95.8 39.5 2.56 2726 100.0 60000 9936 1.241 !DANGEROUS LOAD-DO NOT USE! Norma 203 old 95.7 39.4 2.55 2725 100.0 60000 9920 1.242 !DANGEROUS LOAD-DO NOT USE! PB Clermont PCL 516 88.9 39.9 2.58 2724 100.0 60000 10213 1.223 !DANGEROUS LOAD-DO NOT USE! Accurate MAGPRO 105.0 46.8 3.04 2721 93.3 51417 12342 1.285 ! Near Maximum ! IMR 4320 89.8 38.4 2.49 2719 100.0 60000 9748 1.214 !DANGEROUS LOAD-DO NOT USE! Winchester 748 83.4 37.8 2.45 2715 100.0 60000 9512 1.226 !DANGEROUS LOAD-DO NOT USE! Rottweil R907 91.2 40.1 2.60 2715 99.0 60000 10480 1.228 !DANGEROUS LOAD-DO NOT USE! SNPE Vectan SP 9 88.6 38.5 2.50 2711 100.0 60000 9789 1.225 !DANGEROUS LOAD-DO NOT USE! Hodgdon BL-C2 84.5 38.7 2.51 2708 100.0 60000 9707 1.235 !DANGEROUS LOAD-DO NOT USE! But thanks.
Jim
sigpicComment
-
According to the data that Randall just posted that looks like you're flirting with high pressures. How much powder are you loading?
Hodgdon H4350 loaded to a density of 101.2% (43.1 grains) with an OAL of 2.79 will get a velocity of 2765 fps out of a 24" barrel.
I can get 2900 fps out of my 26" barreled 6.5x284 with 48 grains of H4350 and the 142 grain SMK but the cases only last me about 7 reloads so I think that I'm running real close to 60,000 psi with that load.
The 284 case volume is .254 cubic inches and the 260 case volume is .209 cubic inchesFrank
One rifle, one planet, Holland's 375
Life Member NRA, CRPA and SAFComment
-
I really can't tell you because I lost most of my records for my Savage .260 Remington project from a few years ago. I thought I recorded it all electronically, but I can't find any journals with .260 data.
This is the only records I could find regarding my .260 project:
That only has chrono data for the 123gr Scenars and vague 139 Scenar data.
Distinguished Rifleman #1924
NRA Certified Instructor (Rifle and Metallic Cartridge Reloading) and RSO
NRL22 Match Director at WEGC
https://www.ocabj.netComment
-
Dump the 142 and go with the 139 Scenars with some H4350.
Push em around 2850 and you will be good to go at 1K.
The rig I am having built right now for tactical LR is in 260rem.Comment
-
Randall Rausch
AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Barrel, sight and trigger work on most pistols and shotguns.
Most work performed while-you-wait.Comment
There are currently 7446 users online. 142 members and 7304 guests.
Most users ever online was 239,041 at 10:39 PM on 02-14-2026.
Comment