Tag Archives: Load Development

This post shares more of Mark Gordon’s research on bullet jump, which is very interesting, original research – and has everyone talking! This post looks at research data on the Hornady’s 6.5mm 147 gr. ELD-M and Tubb’s 6mm 115 gr. DTAC RBT bullets. Check it out!

This landmark article shares new, primary research that Mark Gordon from Short Action Customs has compiled over the past 2 years. He tested a wide range of bullet jumps in several rifle/load configurations, and this post shares the analysis of that data. Mark used a similar approach to the Audette Ladder Test and OCW method, but the goal was to not find the most forgiving powder charge weight, but the most forgiving bullet jump. He wasn’t looking for the specific bullet jump that grouped the best, but the largest window of bullet jumps that provided a similar point of impact. That means the rifle would be more consistent from the start of the match to the end of it or could shoot a particular kind of match-grade factory ammo really well for a longer period of time. Mark’s findings may seem counter to conventional wisdom when it comes to bullet jump, but a few national-level precision rifle competitors also support the idea, which I highlight in this post as well.

The 6XC has been a popular choice among top-ranked precision rifle shooters since they first started having long range precision rifle matches. This past year there were 3 shooters using a 6XC in the top 25 in the PRS, and 4 in the top 25 in the NRL. It’s clearly a very capable round in the hands of a good shooter. This article shares the 6XC load data these top-ranked shooters are reloading in their match ammo.

This article contains detailed reloading data for the 6x47 Lapua and 6.5x47 Lapua based on a survey of over 150 of the top-ranked precision rifle competitors. See what the best long range shooters in the country are reloading in their match ammo!

This article contains detailed reloading data for the 6BRA, 6BRX, and 6BR based on a survey of over 150 of the top-ranked precision rifle competitors. See what the best long range shooters in the country are reloading in their match ammo!

This article contains detailed reloading data for the 6mm Creedmoor and 6.5 Creedmoor based on a survey of over 150 of the top-ranked precision rifle competitors. See what the best long range shooters in the country are reloading in their match ammo!

After I identified a promising range of powder weights using Audetter’s ladder test, my next step was to use Dan Newberry’s Optimal Charge Weight (OCW) Method to offset the “scatter node” drawback inherently present in the ladder test.  To learn more about that, read this article comparing the OCW method with the ladder test. The OCW method is based on the observation that there are some loads out there (like Federal’s match ammo for the 308) that shoot really well out of just about any rifle.  How can one recipe shoot so well out of so many different rifles?  Dan Newberry believes accuracy of ...