7 Backcountry Ballistics Data

[Demlockian]

For those interested, I compiled data from one of the YouTube videos (link at bottom) where they shot all types of Federal ammo from both a 22-inch barreled Weatherby and a 16-inch barreled PROOF rifle. Let's keep the discussion away from "bash backcountry" and take the data for it is. If you spot any errors, please let me know and I will correct the dataset.

My wife and I have two 7 Backcountry rifles on order, which we should be receiving shortly after Thanksgiving. In turn, one of them is going to spend ~6 days in Prince William Sound, Alaska shortly afterwards on a Sitka Blacktail hunt.

The yellow line is from Hornady's website for a 24-inch barreled 300 Winchester Magnum firing 180 grain CX bullets with a G1 of .469 and muzzle velocity of 2960.


Blue lines are 22-inch barrel and purple lines are 16-inch.

Source
youtube.com/watch?time_continue=766&v=7O_l5KZZ4JI&embeds_referring_euri=https%3A%2F%2Frokslide.com%2F&source_ve_path=MTM5MTE3LDI4NjYzLDI4NjYzLDEzOTExNywyODY2Ng

Edit #1 - Added pictures for the charts, as copy & paste didn't get the Excel formatting right.

 

[Demlockian]

7 Backcountry | 22-Inch | 175		7 Backcountry | 16-Inch | 175
Weatherby Mk V		Proof Research Tundra Ti
Brand	Federal	Line	Fusion Tipped			Brand	Federal	Line	Fusion Tipped
Grain	175	G1	0.575	Diameter	0.284		Grain	175	G1	0.575	Diameter	0.284
RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO		RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO
0	-1.5	0	2980	3450	21		0	-1.5	0	2850	3156	20
100	1.5	0.5	2815	3078	20		100	1.7	0.6	2690	2811	19
200	0	2.1	2656	2740	19		200	0	2.3	2535	2496	18
300	-6.3	4.8	2502	2432	18		300	-7	5.2	2385	2210	17
400	-18.2	8.8	2353	2152	17		400	-20.2	9.5	2241	1951	16
500	-36.5	14.4	2210	1898	16		500	-40.4	15.4	2101	1715	15
600	-61.9	21.4	2072	1667	15		600	-68.3	22.8	1966	1502	14
700	-95	29.8	1938	1459	14		700	-105	31.9	1837	1311	13
7 Backcountry | 22-Inch | 168		7 Backcountry | 16-Inch | 168
Weatherby Mk V		Proof Research Tundra Ti
Brand	Federal	Line	Barnes LRX			Brand	Federal	Line	Barnes LRX
Grain	168	G1	0.513	Diameter	0.284		Grain	168	G1	0.513	Diameter	0.284
RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO		RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO
0	-1.5	0	3020	3402	21		0	-1.5	0	2890	3115	20
100	1.4	0.5	2834	2995	19		100	1.6	0.6	2709	2737	18
200	0	2.4	2655	2629	18		200	0	2.5	2535	2397	17
300	-6.3	5.4	2483	2300	17		300	-7	5.7	2368	2091	16
400	-18.3	9.9	2317	2003	16		400	-20.3	10.7	2207	1816	15
500	-36.9	16.1	2159	1738	15		500	-40.7	17.2	2052	1571	14
600	-62.7	23.9	2006	1500	14		600	-69	25.4	1903	1351	13
700	-97	33.6	1859	1289	13		700	-107.6	36.1	1762	1158	12

 

[Demlockian]

7 Backcountry | 22-Inch | 155		7 Backcountry | 16-Inch | 155
Weatherby Mk V		Proof Research Tundra Ti
Brand	Federal	Line	Terminal Ascent			Brand	Federal	Line	Terminal Ascent
Grain	155	G1	0.586	Diameter	0.284		Grain	155	G1	0.586	Diameter	0.284
RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO		RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO
0	-1.5	0	3145	3404	20		0	-1.5	0	3060	3222	19
100	1.2	0.5	2977	3049	19		100	1.3	0.4	2895	2884	18
200	0	1.9	2815	2726	18		200	0	2	2736	2576	17
300	-5.6	4.4	2658	2432	17		300	-6	4.6	2582	2295	16
400	-16.1	8.1	2507	2164	16		400	-17.1	8.3	2434	2038	15
500	-32.1	12.9	2361	1919	15		500	-34.2	13.5	2290	1805	14
600	-54.5	19.3	2220	1697	14		600	-58	20.1	2152	1593	14
700	-84	27.1	2084	1495	13		700	-89.1	28.1	2018	1401	13
7 Backcountry | 22-Inch | 170		7 Backcountry | 16-Inch | 170
Weatherby Mk V		Proof Research Tundra Ti
Brand	Federal	Line	Terminal Ascent			Brand	Federal	Line	Terminal Ascent
Grain	170	G1	0.646	Diameter	0.284		Grain	170	G1	0.646	Diameter	0.284
RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO		RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO
0	-1.5	0	3015	3431	21		0	-1.5	0	2935	3251	20
100	1.4	0.4	2866	3101	20		100	1.5	0.5	2789	2936	19
200	0	1.9	2723	2798	19		200	0	2	2648	2647	18
300	-6.1	4.3	2584	2520	18		300	-6.4	4.4	2511	2380	17
400	-17.3	7.7	2449	2263	17		400	-18.3	7.9	2378	2135	16
500	-34.3	12.3	2318	2028	16		500	-36.5	12.9	2250	1910	16
600	-58	18.3	2191	1812	15		600	-61.5	19.1	2125	1705	15
700	-88.8	25.6	2068	1615	14		700	-94	26.6	2004	1516	14
7 Backcountry | 22-Inch | 195		7 Backcountry | 16-Inch | 195
Weatherby Mk V		Proof Research Tundra Ti
Brand	Federal	Line	Berger Elite Hunter			Brand	Federal	Line	Berger Elite Hunter
Grain	195	G1	0.755	Diameter	0.284		Grain	195	G1	0.755	Diameter	0.284
RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO		RANGE	DROP	DRIFT	VELOCITY	ENERGY	TKO
0	-1.5	0	2840	3492	22		0	-1.5	0	2770	3322	22
100	1.6	0.5	2718	3197	22		100	1.7	0.5	2649	3039	21
200	0	1.8	2598	2923	21		200	0	1.8	2532	2776	20
300	-6.7	4	2482	2668	20		300	-7.1	4	2418	2531	19
400	-19	7	2369	2430	19		400	-20.2	7.3	2306	2303	18
500	-37.7	11.3	2259	2210	18		500	-39.9	11.8	2198	2092	17
600	-63.2	16.8	2152	2005	17		600	-66.8	17.4	2092	1895	17
700	-96	23.3	2048	1815	16		700	-101.7	24.2	1990	1714	16

 

[MagnumHntr]

For those interested, I compiled data from one of the YouTube videos (link at bottom) where they shot all types of Federal ammo from both a 22-inch barreled Weatherby and a 16-inch barreled PROOF rifle. Let's keep the discussion away from "bash backcountry" and take the data for it is. If you spot any errors, please let me know and I will correct the dataset.

The yellow line is from Hornady's website for a 24-inch barreled 300 Winchester Magnum firing 180 grain CX bullets with a G1 of .469 and muzzle velocity of 2960.
View attachment 972660

Source
youtube.com/watch?time_continue=766&v=7O_l5KZZ4JI&embeds_referring_euri=https%3A%2F%2Frokslide.com%2F&source_ve_path=MTM5MTE3LDI4NjYzLDI4NjYzLDEzOTExNywyODY2Ng

Why the graph for yards vs energy when energy has nothing to do with killing.

 

[Demlockian]

Why the chart for yards vs energy when energy has nothing to do with killing.

It's nothing more than a data point; people can view or disregard as they see fit.

 

[MagnumHntr]

It's nothing more than a data point; people can view or disregard as they see fit.

A graph of yds vs velocity might be more helpful. Either way thanks for the breakdown of information.

 

[Demlockian]

A graph of yds vs velocity might be more helpful. Either way thanks for the breakdown of information.

As requested.



Same as the first graph, blue is 22-inch and purple is 16-inch.

 

[Ringbill27]

I’m liking what I’m seeing.

 

[jreyna]

Great data. Thanks for taking the time to share and so clearly as well. I’m debating a 16” vs 20” 7mm bc setup. This is very helpful.