Tom Gresham's GUNTALK - 3.01.15 Part B

Published on March 5, 2015
Duration: 44:45

This episode of Gun Talk features an in-depth discussion with gunsmith Bruce Gray of Gray Guns, focusing on his work with Sig Sauer firearms. Key topics include the development of the 10mm conversion for the Sig P220, leading to the Gun Talk GT20, and the potential of the Sig P320 for competition. Gray also discusses the expansion of Team Sig and the performance of new ammunition.

Quick Summary

Gunsmith Bruce Gray discusses the development of the 10mm Sig P220 conversion, leading to the Gun Talk GT20, and the Sig P320's potential for competition. He highlights engineering advancements in recoil management for the 10mm and the expansion of Team Sig, offering expert insights into firearm performance and design.

Chapters

  1. 00:00Introduction and Crimson Trace Ad
  2. 00:24Welcome Back to Gun Talk
  3. 00:41Tom Gresham Introduces Bruce Gray
  4. 01:01Recalling Past Encounters
  5. 01:32Meeting Bruce Gray at Sportsman's Team Challenge
  6. 02:09Bruce Gray's Early Shooting Career
  7. 02:48Starting in PPC and Gunsmithing
  8. 03:07Tinkering with Guns
  9. 03:16The Sig P220 10mm Conversion
  10. 03:36Demand for 10mm P220
  11. 04:00Gray Guns Takes on the 10mm Challenge
  12. 04:22Sig Sauer's Interest in 10mm
  13. 04:35Tom Gresham's Role in the GT20
  14. 05:09Limited Run of the GT20
  15. 05:18Inside vs. Outside the Gun Guy
  16. 05:35The GT20 Concept
  17. 05:44Shooting Comes Down to Sight and Feel
  18. 05:54Gray Guns' Assistance to Sig Sauer
  19. 06:16Project Timeline for the 10mm P220
  20. 06:35Range Report on the 10mm P220
  21. 06:46Trigger and Recoil Impressions
  22. 07:0010mm Cartridge Characteristics
  23. 07:20Engineering for Recoil Management
  24. 07:55Purpose-Built vs. Conversion
  25. 07:57Engineering Concepts: Dwell Time
  26. 08:03Felt Recoil vs. Recoil Energy
  27. 08:18High-Speed Video Analysis
  28. 08:42Slower Unlocking with Extended Lockup
  29. 09:11Break for Commercials
  30. 09:39National Shooting Sports Foundation Ad
  31. 10:09Springfield Armory Concealed Carry DVDs Ad
  32. 10:48Smith & Wesson Bodyguard Ad
  33. 11:10Nosler AccuBond LR Bullets Ad
  34. 11:54Back with Bruce Gray
  35. 12:03Gray Guns Business Model
  36. 12:16Transition to Parts Business
  37. 12:53P-Series Sig Parts Kits
  38. 13:15Discussion on the Sig P320
  39. 13:43Bruce Gray's High Opinion of the P320
  40. 14:11Initial Skepticism of P320 Design
  41. 14:34Learning and Working with the P320
  42. 14:44P320 Durability and Reliability
  43. 15:03P320 for Competition
  44. 15:11P320's Potential in USPSA Production
  45. 15:31Sig Sauer's Previous Competition Platforms
  46. 15:43Gravitation Towards Striker Guns
  47. 16:06Effort Put into the P320
  48. 16:09Challenges in Modifying P320 for Competition
  49. 16:13P320 Trigger Weight for Service vs. Competition
  50. 16:30Redesign and Tweaking for Competition
  51. 16:44News on the Sig Shooting Team
  52. 16:50Expanding Team Sig
  53. 17:03Max Michel as Brand Ambassador
  54. 17:36Strategy to Break into Mature Market
  55. 17:41Campaigning the P320 with 26 Shooters
  56. 18:09Selecting Team Members
  57. 18:20Max Michel as Team Captain
  58. 18:31Team Members' Early Successes
  59. 18:36Mason Lane's Performance
  60. 18:45Eric Levy's Performance
  61. 18:55Concluding Remarks on Gray Guns' Work
  62. 19:11Thanks for the 10mm Project
  63. 19:20Reconnecting After Years
  64. 19:30Bruce Gray's Personal Health Journey
  65. 19:40Praise for Divine Intervention
  66. 19:59Gratitude for Recovery
  67. 20:07Future Meetings
  68. 20:24Gray Guns Website Information
  69. 20:36Gun Talk GT20 Ordering Information
  70. 20:54Call from Matthew in Louisiana
  71. 21:06Discussion on Green Tip Ammo
  72. 21:16Caller's Reaction to 'Fud' Comment
  73. 21:25Concerns About Gradual Restrictions
  74. 21:57The 'First They Came' Analogy
  75. 22:22Importance of Unity in Gun Rights
  76. 22:43Gun Talk Radio Show Recap
  77. 22:55Call from Jim in Nebraska
  78. 23:00George Zimmerman Case and Federal Charges
  79. 23:51Media Portrayal of the Zimmerman Case
  80. 24:29Federal Decision on Charges
  81. 25:04Interview with Vicki Kimmaker on Amanda's Law
  82. 25:18What is Amanda's Law?
  83. 25:31Expansion of Campus Carry
  84. 25:53Brilliant Move to Expand Carry Rights
  85. 26:09Addressing Concerns About Student Safety
  86. 26:38Expanding to Public Buildings
  87. 26:43Amanda's Law Not About Rape
  88. 26:57Sign at Nevada Legislative Building
  89. 27:14Director of Legislative Council Bureau
  90. 27:26Conversations with Mr. Rick Combes
  91. 27:44The People's Building
  92. 27:50Impact of Amanda's Law Passing
  93. 28:03Law-Abiding Citizens Being Disarmed
  94. 28:16Request for Armed Escort
  95. 28:52Warren v. District of Columbia Ruling
  96. 29:11Armed Escort Provided
  97. 29:301 Million United Organization
  98. 29:42Founding and Mission of 1 Million United
  99. 30:04Supporting Amanda's Law
  100. 30:37Email for Testimony Submission
  101. 31:02Appreciation for Vicki Kimmaker
  102. 31:09Preview of Next Segments
  103. 31:28Top Gun Supply Ad
  104. 32:00Vanishing Paradise.org PSA
  105. 33:02Federal Premium Guard Dog Ad
  106. 33:40Back with Gun Talk
  107. 33:43Call from Jim in Nebraska
  108. 33:53Question About Green Lasers
  109. 34:06Green Laser Specifications
  110. 34:32Dot Size at 100 Yards
  111. 35:06Jim's 10mm 1911 Experience
  112. 35:15Brass Ejection Issues
  113. 35:31Dwell Time and Brass Flinging
  114. 36:04Guess on Brass Flinging Reduction
  115. 36:15Brass Ejection Distance
  116. 36:33Laser Safety Warning
  117. 36:46Call from Rick in California
  118. 36:52Appreciation for Gun Talk Show
  119. 37:09Rick's Law Enforcement Background
  120. 37:12Ignoring 'No Carry' Zones
  121. 37:28Realistic View of Criminals
  122. 37:50Worst Deputy Sheriff Experience
  123. 38:13Age Doesn't Matter with Firearms
  124. 38:23Call from Daniel in Mississippi
  125. 38:2810mm vs. .40 Caliber Comparison
  126. 38:32History of 10mm and .40 S&W
  127. 38:45.40 Caliber as Underpowered 10mm
  128. 38:52Energy Comparison
  129. 39:02Significantly More Potent Caliber
  130. 39:40Ballistics Data for 10mm vs. .40 S&W
  131. 40:2070% Increase in Energy
  132. 40:2810mm Energy at 100 Yards
  133. 40:39Call from Eric in Kansas
  134. 40:48Range Report on 10mm
  135. 40:53Glock vs. Rock Island 1911 10mm
  136. 41:15Appreciation for 1911 Platform
  137. 41:24Why Eric Likes the 10mm
  138. 41:3810mm for Backcountry Defense
  139. 41:5610mm vs. Revolvers for Big Critters
  140. 42:15Reacquiring Target Faster with 10mm
  141. 42:32Call from Tori in Washington
  142. 42:38Double Tap Ammunition for Woods Carry
  143. 42:43200gr vs. 230gr Hard Cast Loads
  144. 43:02Preference for Lighter, Faster Hard Cast
  145. 43:10Hard Cast Bullet Penetration
  146. 43:29Double Tap Equalizer Load
  147. 43:40Two Projectiles vs. Single Projectile
  148. 44:03Preview of Next Guest

Frequently Asked Questions

What is the significance of the Sig Sauer P220 10mm conversion discussed on Gun Talk?

The Sig Sauer P220 10mm conversion, spearheaded by Bruce Gray of Gray Guns, addressed a persistent demand from 10mm enthusiasts. These successful conversions led to Sig Sauer developing their own factory 10mm P220, culminating in the limited-run Gun Talk GT20.

How does the engineering of the Sig Sauer 10mm P220 manage recoil?

Sig Sauer engineers optimized the 10mm P220 by extending lockup values and increasing slide mass. This slows the slide's unlocking process, allowing chamber pressure to drop before cycling, which significantly reduces felt recoil and makes the powerful 10mm cartridge more manageable.

What is Bruce Gray's assessment of the Sig Sauer P320 for competition?

Bruce Gray believes the Sig Sauer P320 is a robust and reliable striker-fired pistol with great potential for competition. While factory triggers are heavy for service use, Gray Guns is working on modifications to create lighter, competition-ready triggers that remain safe and durable.

How does the 10mm Auto cartridge compare to the .40 S&W?

The 10mm Auto is considerably more powerful than the .40 S&W. With similar bullet weights, the 10mm can deliver approximately 70% more energy, offering greater velocity and stopping power. The .40 S&W was developed as a less potent alternative to the 10mm.

What are the benefits of hard cast bullets in 10mm for self-defense?

Hard cast bullets in 10mm, such as those offered by Double Tap Ammunition, provide deep penetration with minimal expansion. This makes them ideal for defense against large animals like bears or cougars, ensuring the projectile can reach vital organs without deforming significantly.

Related News

All News →

More Reviews Videos You Might Like

More from Gun Talk Media

View all →