440: 243 Winchester vs 6mm Remington With Ron Spomer

440: 243 Winchester vs 6mm Remington With Ron Spomer

Author: John McAdams September 10, 2026 Duration: 1:12:59

John McAdams sits down with Ron Spomer to talk about the .243 Winchester and the 6mm Remington (originally the .244 Remington). Both are light recoiling, flat shooting 6mm cartridges introduced in the 1950s and have similar performance on paper at first glance. However, the 243 Winchester remains one of the most popular dual-purpose cartridges in America while the .244/6mm Remington never achieved widespread popularity and is slowly fading away, despite offering slightly better ballistics. Here's the story of what happened.

If you like classic cartridge history, practical hunting ballistics, and straightforward comparisons, this episode is for you.

Sponsor: Join the community I'm building on Patreon to receive exclusive bonus content, like my ongoing tour of my new office highlighting lessons learned and interesting stories from past hunts.

Go to BigGameHuntingPodcast.com/ebook and sign up for my free e-book on the best hunting calibers at to receive the entertaining and informative emails I send out about hunting, firearms, and ballistics every weekday.

Please hit that "SUBSCRIBE" or "FOLLOW" button in your podcast app to receive future episodes automatically!

Resources

5 Dying Rifle Cartridges the Industry Is Abandoning In 2026 (But Still Work)

Pick up a copy of Ron's 7mm Cartridges From Around The World book here

Check Out Ron Spomer's Podcast (on Apple or Spotify), Web Site, & YouTube Channel

Ep 386: Brown & Grizzly Bear Hunting With Ron Spomer

Ep 336: Best Cartridge For Hunting Darn Near Anything With Ron Spomer

Ep 201: Bighorn Sheep Hunting With Ron Spomer

Ep 145: Moose Hunting 101 With Ron Spomer


John McAdams hosts the Big Game Hunting Podcast, a conversation grounded in the realities of pursuing game across continents. Each episode feels like a detailed campfire talk, moving from the technical specifics of terminal ballistics and caliber selection to the raw, unforgettable narratives from the field in Africa, North America, and beyond. McAdams brings together a global community, with voices ranging from seasoned industry professionals to fellow hunters who call in with their own experiences. The focus is always on practical knowledge and authentic stories, stripping away any pretense to get to the heart of what hunters actually want to discuss. By sharing his own journey of learning and improvement, McAdams creates a space where curiosity and respect for the wilderness drive the dialogue. Tuning into this podcast means joining a serious yet accessible exchange where the complexities of the hunt are explored without filter. New conversations are released every Thursday, offering a consistent dose of insight and camaraderie for anyone passionate about the pursuit.
Author: Language: English Episodes: 50

Big Game Hunting Podcast - Hunting Africa, North America, & More!
Podcast Episodes
BONUS: Vote For Me For Podcast Of The Year! [not-audio_url] [/not-audio_url]

Duration: 1:16
I am honored to be among those nominated for the Podcast of The Year award at the 2026 Gundies. Thank you to all of you who nominated me for this award. Voting for the Gundies begins TODAY, 1 December 2025 and I need you…
399: 8mm & 32 Caliber Cartridges: The Ultimate Guide [not-audio_url] [/not-audio_url]

Duration: 1:06:49
I discuss all of the 8mm and 32 caliber SAAMI standardized cartridges (plus a couple of other noteworthy CIP rounds) in this episode. As always, I'll talk about their history, design characteristics, performance specs, t…
398: 6.5mm Cartridges: The Ultimate Guide [not-audio_url] [/not-audio_url]

Duration: 1:47:40
I discuss all of the 6.5mm SAAMI standardized cartridges (plus a couple of other noteworthy CIP rounds) in this episode. As always, I'll talk about their history, design characteristics, performance specs, their strength…
397: An Elk Guide Shares His Favorite Elk Hunting Cartridges [not-audio_url] [/not-audio_url]

Duration: 1:25:18
Today, Rob Massa from the Bergara Academy and the R&K Hunting Company in Wyoming joins me on the show to discuss some observations he has made on what cartridges and bullets work and don't work from over 20 years outfitt…
396: 2025 Wyoming Elk Hunt Recap [not-audio_url] [/not-audio_url]

Duration: 1:02:11
I just made it home from an outstanding elk hunt in Wyoming! Despite some unique struggles, I had an amazing trip and I successfully took a beautiful bull elk. Today's episode is a detailed recap of this hunt, evaluation…
395: 22 Creedmoor vs 6.5 Creedmoor Caliber Comparison [not-audio_url] [/not-audio_url]

Duration: 1:03:21
John McAdams shares insights on the 22 Creedmoor vs 6.5 Creedmoor informed by real world data on obtained at the range, afield, and in ballistic gel in this podcast episode. John discusses the design characteristics, per…
393: Best Deer Hunting Ammo For 2025 [not-audio_url] [/not-audio_url]

Duration: 43:04
John McAdams shares three different recommendations for ammunition and bullets for deer hunters to use in 2025 informed by real world data on obtained at the range, afield, and in ballistic gel in this podcast episode. J…
392: 6.5 PRC vs 270 Winchester Caliber Comparison [not-audio_url] [/not-audio_url]

Duration: 54:01
The legendary 270 Winchester celebrates its 100th birthday this year in 2025. So, in honor of that impressive milestone, I conduct a deep dive comparing the venerable 270 Winchester to a much newer round with a more mode…