bushing vs no bushing barrel 1911 accuracy
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bmize1
Tim:H11
james r chapman
zanemoseley
smsnyder
9 posters
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bushing vs no bushing barrel 1911 accuracy
Which is more accurate?
smsnyder- Posts : 630
Join date : 2019-08-23
Location : Pittsburgh Pa
Re: bushing vs no bushing barrel 1911 accuracy
No bushing as in a bull barrel fit to the slide? Never seen one used for bullseye but surely someone's tried it.
zanemoseley- Posts : 2688
Join date : 2015-07-11
Location : Cookeville, TN
Re: bushing vs no bushing barrel 1911 accuracy
Both equal and each has its proponents
james r chapman- Admin
- Posts : 6359
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: bushing vs no bushing barrel 1911 accuracy
If fitted right they are just as accurate. I don’t know anyone using one in bullseye right now but I’ve seen guns built for other sports using a bull barrel and they test out very accurately at 50 yards.
Tim:H11- Posts : 2133
Join date : 2015-11-04
Age : 36
Location : Midland, GA
Re: bushing vs no bushing barrel 1911 accuracy
I had a Marvel built 9mm with bull barrel , was a 1” gun easily with proper ammo.
bmize1- Posts : 269
Join date : 2015-05-21
Location : AL
Re: bushing vs no bushing barrel 1911 accuracy
Mr keefer was working with coned barrels that showed excellent accuracy. He made his barrels.from blanks but Chambers custom and deep river have both sold threaded cones that would allow you to use quality match barrels and convert them to cone..
jglenn21- Posts : 2618
Join date : 2015-04-07
Age : 76
Location : monroe , ga
Re: bushing vs no bushing barrel 1911 accuracy
Actually there at least three options for 1911 platforms.
1. Standard barrel with bushing fit to slide and barrel
2. Bull barrel, fit to slide in lieu of bushing
3. Standard barrel, threaded, with cone, outer diameter fit to slide
IMO, 1 and 3 are most desirable. With wear, refit a bushing or cone. With 2 one would have to fit a new over sized barrel or weld up the slide.
1. Standard barrel with bushing fit to slide and barrel
2. Bull barrel, fit to slide in lieu of bushing
3. Standard barrel, threaded, with cone, outer diameter fit to slide
IMO, 1 and 3 are most desirable. With wear, refit a bushing or cone. With 2 one would have to fit a new over sized barrel or weld up the slide.
Allgoodhits- Posts : 899
Join date : 2017-09-17
Location : Southport, NC
Re: bushing vs no bushing barrel 1911 accuracy
Be aware of the rules on maximum diameter for barrels too
james r chapman- Admin
- Posts : 6359
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan
Re: bushing vs no bushing barrel 1911 accuracy
The coned barrel is the tightest setup you can get. My gunsmith fits the cone to within .0005" of the slide ID, you can get just over double that with bushing but that doesn't include the tolerance between the bushing and slide. I've got 2 guns setup this way, they're phenomenally accurate...
Last edited by Steve B on 9/30/2019, 6:58 pm; edited 2 times in total
Steve B- Posts : 627
Join date : 2011-06-16
Location : Elkhart, IN
Re: bushing vs no bushing barrel 1911 accuracy
bull barrels( and I assume cone barrels) are not CMP legal. ok for NRA
jglenn21- Posts : 2618
Join date : 2015-04-07
Age : 76
Location : monroe , ga
Steve B- Posts : 627
Join date : 2011-06-16
Location : Elkhart, IN
Re: bushing vs no bushing barrel 1911 accuracy
jglenn21 wrote:bull barrels( and I assume cone barrels) are not CMP legal. ok for NRA
CMP
Bull barrels specifically mentioned as not permitted. it goes to say "...Barrel may have an integral bushing or threaded sleeve that is made of the same material as the barrel, that has an external diameter of 0.700” or less and that is not longer than 0.800” when measured from the muzzle." Threaded sleeve would be the cone, I presume. They limit size so that coned barrel does not end up being as heavy as bull barrel.
Allgoodhits- Posts : 899
Join date : 2017-09-17
Location : Southport, NC
Re: bushing vs no bushing barrel 1911 accuracy
Interested
Thanks
Thanks
smsnyder- Posts : 630
Join date : 2019-08-23
Location : Pittsburgh Pa
Re: bushing vs no bushing barrel 1911 accuracy
having a cone < 1" long would be unique.. Max of .700 diameter could be an issue too but ......
jglenn21- Posts : 2618
Join date : 2015-04-07
Age : 76
Location : monroe , ga
Re: bushing vs no bushing barrel 1911 accuracy
It's funny. Some of the 1911s I tested on Vietnam were so shot out you couldn't hit a garbage can kid at 10 yards. Lol
smsnyder- Posts : 630
Join date : 2019-08-23
Location : Pittsburgh Pa
Re: bushing vs no bushing barrel 1911 accuracy
With a bushing barrel, you have to have some amount a clearance between the outside of the bushing and the slide, and then between the inside of the bushing and the barrel. With bull barrels and cone barrels, you only have to worry about the clearance between the barrel/cone and slide. With one less One less clearance to worry about, it stands to reason that bull barrels and coned barrels would be more accurate.
That said, with a properly fitted bushing barrel vs a properly fitted bull/cone barrel, you're probably talking more about a theoretical difference than anything you'll actually perceive.
However, one other thing to consider, especially if you're running a slide-mounted scope; a bull barrel would add additional mass that would further resist the gun unlocking compared to a bushing barrel. You'd have to fiddle with spring rates or increase your load to account for it.
That said, with a properly fitted bushing barrel vs a properly fitted bull/cone barrel, you're probably talking more about a theoretical difference than anything you'll actually perceive.
However, one other thing to consider, especially if you're running a slide-mounted scope; a bull barrel would add additional mass that would further resist the gun unlocking compared to a bushing barrel. You'd have to fiddle with spring rates or increase your load to account for it.
mpolans- Posts : 606
Join date : 2016-05-27
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