Colt Series 70 GC 9mm - Pistolsmith

Go Back   Pistolsmith > Pistol Forum > M1911 Pistols

Like Tree2Likes
  • 1 Post By Combat Weapon Systems
  • 1 Post By blastjv
LinkBack Thread Tools Display Modes
Old 07-15-2018, 11:19 AM   #1
Junior Member
Join Date: Mar 2006
Location: san francisco
Posts: 6
Colt Series 70 GC 9mm

Bought a brand new Colt Series GC 70 9mm . Really like the gun .
Question . To improve accuracy , would a fitted match barrel and bushing be enough? I am looking to shoot 147jhp ammo through it , what twist do I need in my barrel? Thank You .
Remove Ads
Old 07-15-2018, 03:26 PM   #2
Senior Member
Join Date: Jun 2001
Posts: 1,801
Most experts think the critical part of 1911 accuracy is the fit of the barrel and bushing to each other and the slide.
Slide to frame fit doesn't seem to be as important.

For a Match barrel there are a number of choices, but I always thought the Bar-Sto was about as good as it gets.
They were one of the first to offer true Match barrels to the public and have a huge amount of experience.

Whoever you choose, if they offer a choice in rifling I'd talk direct to them about what they'd recommend.

For match bushings you can choose anything from a one piece original type to versions that use replaceable fitted rings inside the bushing.

Personally, I'd buy a fitted bushing from the same company I buy the barrel.

For what it's worth, for a variety of reasons the 9mm just doesn't seem to be capable of giving as high a level of accuracy as the .45 does, so don't be disappointed if you don't get quite what you'd like out of it.

Last edited by dfariswheel; 07-15-2018 at 03:30 PM.
Old 09-20-2018, 07:14 PM   #3
Junior Member
Combat Weapon Systems's Avatar
Join Date: May 2018
Posts: 15
Schuemann makes really nice barrels also.
wrmiller likes this.
Old 09-25-2018, 07:20 PM   #4
Junior Member
Join Date: Jan 2003
Location: Philadelphia. PA
Posts: 14
By GC do you mean Gold Cup? They come with a match grade barrel.
ca survivor likes this.

  Pistolsmith > Pistol Forum > M1911 Pistols

Search tags for this page

colt 70 series 9mm accuracy

Click on a term to search for related topics.

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Colt SAA, trigger pull is too light... hvymech Pistolsmiths 2 04-29-2018 02:53 PM
Colt lawman mkiii Blake Colt Revolvers 2 01-29-2018 10:12 PM
Colt 9mm work in progress. pkrhed Pictures 2 04-28-2017 07:20 PM
New User with a New Colt NM GC Piersjhn New Member Introductions 0 04-01-2017 09:28 AM
Colt Hammer Upgrade Help! Sparky9680 M1911 Pistols 3 02-16-2017 12:33 PM

Top Gun Sites Top Sites List

Powered by vBulletin 3.8.8
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright © 1999-2012 Pistolsmith. All rights reserved.