11/27/2022 – I don’t particularly care for putting in range time in the winter. No matter what gear I put on, sitting still at a bench results in numb feet, frosty fingers and a face wind burned into leather. Hunting in the cold is a different thing because, with the exception of posting, there is a good deal of movement and exertion. Although being in a tree stand may be challenging. I don’t know, I’m not a tree stand hunter.
I look forward to slogging through butt high snow and frosty winds to change targets and waiting patiently at the bench for breaks in the wind to shoot test groups. Most of all, after a thankful Thanksgiving, I am looking forward to a spiritual Christmas and better fortune in the coming new year. I wish the same for all of you… from Thanksgiving on, not the butt high snow deal.
The Facebookies…
Facebook seems the place for people to answer rhetorical questions. Mostly because those guys look at the pictures and don’t read the articles. Someone described 7mm cartridges as the new upstarts, then went on to say they offer no advantage of proven cartridges, brush hunters prefer heavier slower bullets, and they are more expensive as factory ammo. Okay, let’s see…
The 7x57mm has been with us since 1892, the 275 Rigby since 1907, the 280 Remington since 1957, etc..
The 7mm bullet has a naturally high sectional density and ballistic coefficient which allows them to retain relatively higher velocity and corresponding energy over longer distances than say proportional weight 22, 243, 270, and 30 caliber bullets.
I think the notion that some bullets shoot through brush has been debunked in decades past, as any bullet will be deflected by brush and fundamental hunting rules of safety suggest not shooting animals through cover.
Manufacturer and type for type, 7mm ammo is no more costly than other similar size ammunition, but all of it is outrageously priced… which is why this is a reloading article.
The results are in…
Bullet | Bullet Type |
Weight Grains |
Bulllet Length” |
Cartridge Overall Length ” |
Net Capacity Grains H2O |
Sierra Pro-Hunter | FBSP | 120 | 0.970 | 2.985 | 56.3 |
Berger VLD Hunting | BTHP | 140 | 1.270 | 3.065 | 52.8 |
Remington Cor-Lokt |
PSP | 140 | 1.100 | 3.000 | 53.9 |
Nosler CT | BTPT | 150 | 1.310 | 3.060 | 51.8 |
Winchester Power Point |
FBSP | 150 | 1.190 | 2.885 | 52.2 |
Speer Hot-Cor |
FBSP | 160 | 1.240 | 3.050 | 52.6 |
Remington Cor-Lokt |
PSP | 175 | 1.310 | 3.015 | 50.8 |
Some minor revision were made to the table while assembling handloads. All dimensional and all what I would consider trivial.
The 175 grain bullet offered better accuracy than anticipated. The Ruger has a 1:8.5″ twist rather than the more typical 1:9.5″ twist, which stabilizes longer bullets like the Berger and the heavy Remington Cor-Lokt.
Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity, pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may be excessive in others. All loads should be reduced by 5% as a starting point for development where cartridges have greater than 40 grains in capacity and 10% for cartridges with less than 40 grain capacity following safe handloading practices as represented in established mainstream reloading manuals. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.
Cartridge |
7x57mm Mauser* |
Firearm | Ruger Hawkeye International |
Barrel Length | 18.5″ |
Min – Max Case Length | 2.235″ +0.0″/-0.020″ |
Min – Max Cartridge Overall Length | 2.850″ – 3.065″ |
Primer | CCI 250 LRM |
Bullet Diameter | 0.2845″ +0.0″/-0.0030″ |
Reloading Dies | Redding FL |
61kpsi, exceeds SAAMI MAP 51kpsi. |
Bullet | Bullet Weight Grains |
H2O Grains Capacity |
C.O.L.” | Powder Type |
Charge Grains |
Muzzle MV FPS |
Muzzle ME Ft-Lbs |
100 Yard 3 Shot 100 YD Group “ |
Sierra Pro-Hunter SPFB | 120 |
56.3 |
2.985 |
Re 16 |
54.0 |
3202 |
2736 |
0.6 |
Sierra Pro-Hunter SPFB | 120 | 56.3 | 2.985 | Varget | 50.9 | 3104 | 2567 | 1.0 |
Sierra Pro-Hunter SPFB | 120 | 56.3 | 2.985 | CFE 223 |
54.5 | 3163 | 2666 | 1.2 |
Sierra Pro-Hunter SPFB | 120 |
56.3 | 2.985 |
H 414 | 55.5 | 3176 | 2688 | 0.8 |
Berger VDL Hunting BTHP | 140 |
52.8 |
3.065 |
Reloder 16 |
49.5 | 2859 | 2542 | 0.7 |
Berger VDL Hunting BTHP | 140 |
52.8 | 3.065 |
H414 | 51.0 | 2842 |
2511 | 0.5 |
Berger VDL Hunting BTHP | 140 |
52.8 | 3.065 |
Norma URP |
50.0 | 2822 | 2475 | 0.4 |
Berger VDL Hunting BTHP | 140 |
52.8 | 3.065 |
RS Hunter |
52.5 |
2836 |
2500 |
1.0 |
Remington Core-Lokt PPFB | 140 |
53.9 |
3.000 |
Re 17 | 51.5 | 2882 | 2583 | 0.7 |
Remington Core-Lokt PPFB | 140 | 53.9 | 3.000 | Norma 204 |
52.5 | 2800 | 2438 | 1.0 |
Remington Core-Lokt PPFB | 140 | 53.9 | 3.000 | RS Hunter |
53.0 | 2828 | 2486 | 0.6 |
Remington Core-Lokt PPFB | 140 |
53.9 | 3.000 |
Win 760 |
51.6 | 2842 | 2510 | 1.2 |
Nosler CT BTPT | 150 | 51.8 | 3.060 | Reloder 17 |
49.5 | 2789 | 2592 | 0.8 |
Nosler CT BTPT | 150 | 51.8 | 3.060 | Norma URP |
49.0 |
2752 | 2522 | 0.9 |
Nosler CT BTPT | 150 | 51.8 | 3.060 | RS Hunter |
51.0 | 2742 | 2505 | 1.0 |
Nosler CT BTPT | 150 | 51.8 | 3.060 | Win 760 |
49.5 | 2746 | 2511 | 0.8 |
Winchester PP |
150 |
52.2 |
2.885 |
Reloder 17 |
49.0 | 2780 | 2574 | 0.3 |
Winchester PP |
150 |
52.2 |
2.885 |
H414 | 49.0 | 2766 | 2548 | 0.9 |
Winchester PP |
150 |
52.2 |
2.885 |
RS Hunter |
50.5 | 2734 |
2489 |
0.6 |
Winchester PP |
150 |
52.2 |
2.885 |
Win 760 |
49.0 |
2736 |
2494 | 1.2 |
Speer Hot Cor SPFB | 160 |
51.8 |
3.050 |
Re 16 | 46.0 | 2664 | 2206 | 1.0 |
Speer Hot Cor SPFB | 160 |
51.8 |
3.050 |
Re 17 | 48.0 | 2675 | 2543 | 0.7 |
Speer Hot Cor SPFB | 160 | 51.8 |
3.050 | H414 | 48.5 | 2635 | 2467 | 1.1 |
Speer Hot Cor SPFB | 160 | 51.8 |
3.050 | Win 760 | 46.0 | 2674 |
2223 |
0.9 |
Remington Core-Lokt PPFB | 175 | 50.8 |
3.015 | Re 16 |
44.5 |
2505 |
2438 |
0.8 |
Remington Core-Lokt PPFB | 175 | 50.8 | 3.015 | Re 17 |
46.0 |
2535 |
2497 |
0.5 |
Remington Core-Lokt PPFB | 175 | 50.8 | 3.015 | H414 | 46.0 | 2499 | 2426 | 0.9 |
Remington Core-Lokt PPFB | 175 | 50.8 | 3.015 | IMR 7828 SSC | 55.0 | 2513 | 2453 | 0.6 |
Conclusions?
Ambient in the shop is 65°F, outside it is 22°F. Plank flooring is cause for aesthetic celebration, cold feet and a small heater running in my desk footwell. So I am cycling between frozen feet and haphazard thaw.
For me, there are loads on the table to cover everything from coyote to Maine moose. Certainly deer and black bear. The little rifle’s form is so comfortable to carry and light in weight. Yes, a bit of recoil, but nothing serious. Yes, a little barky, but that’s OK too.
Funny how a post to social media often leads to a critique. Not sure what makes people believe one person’s preference is an affront to another that must immediately be countered. The 7x57mm and light rifle is a good practical combination. Yes I am a bit grumpy. It’s 5:30 AM.
Classy rifle, in my opinion and traditional preferences. Traditional chambering to match the rifle style with tons of history, both military and sporting. That particular combination appears to be very easy to get along with from a reloader’s perspective. Lots of flexibility and great accuracy results across the board with a wide span of bullet weights and powders.
We have to get some of those comment emojis. 🙂
Joe, those are impressive velocities you achieved given the 18.5 inch barrel. I am currently working up some 160 gr Swift A Frame and 175 Nosler Partition loads for my 7×57 (Win Mod 70 w/ 22 inch barrel). You data, as always, is a welcome and useful addition to what I have in reloading manuals. With bullets, powder and primers still hard to come by, it’s good to have good data to help narrow the options quickly.
David, want to make sure you saw the notation in the table spec box, these are loaded to 61 kpsi rather than SAAMI 51 kpsi.
The heavier weights did pretty well with specific powders. Personally, I like them with the 7×57 rather than chasing high velocity with light bullets with a shorter barrel and for woodland hunting.