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Outdoor Life reported accuracy and velocity tests of six 6.5 Creedmoor hunting loads, firing each through a precision Seekins rifle and a Ruger American Rifle Gen II. Winchester Deer Season XP had the smallest combined average group, while Remington Core-Lokt Tipped showed the widest difference between the two rifles. The test measured bench accuracy and velocity, not field performance or terminal results.
Outdoor Life tested six 6.5 Creedmoor deer-hunting loads in two rifles and reported that Winchester Deer Season XP produced the smallest combined average five-shot group, at 0.700 inches. The comparison also found substantial rifle-to-rifle variation for some ammunition, underscoring that bench results from one test setup do not predict how a load will perform in every hunting rifle.
The report’s tester fired each load through a Seekins SIC Short Action precision rifle and a Ruger American Rifle Gen II. For each ammunition type, the protocol called for 20 rounds through each rifle. The tester recorded four five-shot groups per rifle and calculated a combined average group size from the results. A Garmin Xero C2 chronograph recorded velocity data and standard deviation; the report says most velocity figures were based on 20 shots per rifle and load, while Federal’s Fusion Tipped figure was based on 30 shots.
Winchester’s 140-grain Deer Season XP averaged 0.652 inches in the Seekins and 0.749 inches in the Ruger, for a combined 0.700-inch average. Barnes’ 140-grain Harvest Tipped Game King followed at 0.704 inches overall, with group averages of 0.642 inches and 0.767 inches, respectively. The report named Winchester its Editor’s Choice and Barnes its runner-up.
Federal’s 140-grain Fusion Tipped averaged 0.989 inches combined, while Nosler’s 140-grain Solid Base Whitetail Country averaged 1.167 inches. Hornady’s 129-grain InterLock American Whitetail averaged 1.375 inches. Remington’s 129-grain Core-Lokt Tipped averaged 0.713 inches in the Seekins but 2.325 inches in the Ruger, for a combined 1.519 inches. Outdoor Life described the Remington result as mixed; the gap shows the load’s performance differed sharply between these two rifles.
Rifle Fit Changed the Results
The findings offer hunters a measured comparison of accuracy at the bench among six widely marketed loads, but the gap between rifle results is just as relevant as the overall ranking. Remington’s Core-Lokt Tipped, for example, grouped tightly in the Seekins but much less tightly in the Ruger. That contrast cautions against treating a combined average—or another shooter’s results—as a guarantee for an individual rifle.
The report also provides velocity and standard-deviation data, which can help readers compare consistency within this test. However, the test did not establish which load performs best on deer. Accuracy and velocity measurements are not a substitute for field evidence about bullet expansion, penetration, or effectiveness, and the source material does not provide controlled terminal-performance results for all six loads.
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How the Ammunition Was Compared
Outdoor Life said it selected 6.5 Creedmoor because it is a widely available big-game cartridge and because the tester wanted to assess the ammunition in a cartridge considered inherently accurate. The two rifles represented different uses: a high-end precision platform and a budget-oriented hunting rifle. The Seekins model, according to the report, was slated for public release in 2027.
The test focused on precision, cycling and velocity consistency, though the figures provided here primarily document group sizes and chronograph readings. Each reported average reflects a limited sample—four five-shot groups per rifle and load—rather than a broad survey of rifles, ammunition lots, or field conditions. The report also noted that the Winchester load was difficult to find in stock at the time, despite listing an approximate price of $35 for a 20-round box.
Limits of the Test Results
The comparison covers two rifles and one cartridge, so it cannot establish how the loads will group in other firearms. The report does not provide results across multiple ammunition lots, different weather conditions, or a wider range of barrel lengths. It also does not show a controlled comparison of terminal performance on game, despite discussing hunting use.
Availability can change, and the reported price and stock status are specific to the publication date. The source excerpt gives a velocity standard deviation for each listed load but does not include all underlying shot-by-shot readings. It is also unclear from the excerpt how cycling reliability was scored, although the report says feeding and cycling were part of the test.
Verify Results in Your Rifle
The report gives hunters a starting point, not a universal ranking. Readers considering a load can check current availability and consult the full Outdoor Life report for its complete results and video. The practical next step is to test the specific ammunition in the rifle it will be used in, following the firearm maker’s instructions and safe range procedures, and to confirm the load is appropriate for the intended hunting regulations and conditions.
Key Questions
Which load had the smallest combined group average?
Winchester 140-grain Deer Season XP averaged 0.700 inches across the two rifles in Outdoor Life’s test, the smallest combined figure reported.
Which load was the runner-up?
Barnes 140-grain Harvest Tipped Game King averaged 0.704 inches combined and was named the report’s Editor’s Choice runner-up.
Did every load perform similarly in both rifles?
No. The results varied by rifle, most sharply for Remington Core-Lokt Tipped: its average was 0.713 inches in the Seekins and 2.325 inches in the Ruger.
Does this test show which ammunition is most effective on deer?
No. The reported comparison measured bench group size and velocity consistency. It does not establish comparative field or terminal performance on deer.
Can these group averages predict how a load will perform in another rifle?
Not reliably. The test used two specific rifles, and its results show that the same load can produce different group averages in different firearms. A hunter should assess ammunition in the rifle being used.
Source: outdoorlife.com
