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After looking through the famous "My PT 1911 shoots low" thread as well as getting a tip from a local shooter, I went and purchased a new barrel bushing for my PT-1911 9mm. The before/after results are posted here as PDF files.
Some notes:
- I shot the "before" rounds on Jan. 28th and the "after" rounds just last night (Mar. 8th).
- The top targets were shot at 7 yards; the bottom targets were shot at 15 yards.
- The left targets were shot with cheap steel-cased Herter's 115gr ammo, the right targets were shot with better Fiocchi 115gr ammo.
- All targets were shot at using five rounds per target.
- All shots were taken from a benchrest.
- All shots were taken using a "cover hold" sighting (i.e., all three dots lined up, the center dot right over each bullseye).
Some observations:
- The groups definitely got tighter after I changed out the barrel bushing. How much tighter is debatable, but I'm happy with the upgrade.
- The shots are still a little low and a little to the right.
- I suck at shooting at 15 yards! (In fact, two of my Fiocchi shots -- lower right bullseye -- from last night were actually off the paper! One was below the three-shot group right around the word "FREE!" and the other was to the right of the three shot group.) Might be time for glasses...I have trouble seeing out that far in the low-light conditions of my range. (And darn it, the US Air Force just fixed my eyes only 3 years ago...)
Next up: an adjustable Novak rear sight...I'll update this thread and post an updated target after I've gotten it and shot another 20 rounds.
As for the bushing itself, I got it from Evolution Gun Works, Inc.. I went there in person as I don't have calipers and couldn't measure what size bushing I needed, not to mention they're about 45 minutes from me. They were very friendly and super nice -- it was a pleasure to deal with them. I wound up buying a thick-flange bushing and a matching recoil spring cap. (They even checked to make sure that the adjustable Silverline rear sight did NOT fit the Tauruses, and wouldn't sell one to me.)
The guy who helped me at EGW (I think it was Jim) was a bit dumbfounded when he saw how much play there was between the stock/OEM bushing and the barrel...he wasn't surprised when I told him what the original groupings were like (I forgot to bring the target in to show him).
I can't say for the other calibers, but for the 9mm folks, the size I bought was .703" OD and .5795" ID. Call 'em up and get one -- it was less than $30 for a thick flange bushing before tax/S&H (I want to say it was around $26...a regular one may be even cheaper), plus $15 before tax/S&H for the matching recoil spring cap.
Cheers,
Andy
ETA: here are the links for the various parts...looks like $25 for the bushing and $15 for the recoil spring cap.
- Barrel Bushing
- Recoil Spring Cap
They did tell me that the recoil spring cap was purely for cosmetics...there's no need for it. Also, don't forget to specify a custom bore...
Some notes:
- I shot the "before" rounds on Jan. 28th and the "after" rounds just last night (Mar. 8th).
- The top targets were shot at 7 yards; the bottom targets were shot at 15 yards.
- The left targets were shot with cheap steel-cased Herter's 115gr ammo, the right targets were shot with better Fiocchi 115gr ammo.
- All targets were shot at using five rounds per target.
- All shots were taken from a benchrest.
- All shots were taken using a "cover hold" sighting (i.e., all three dots lined up, the center dot right over each bullseye).
Some observations:
- The groups definitely got tighter after I changed out the barrel bushing. How much tighter is debatable, but I'm happy with the upgrade.
- The shots are still a little low and a little to the right.
- I suck at shooting at 15 yards! (In fact, two of my Fiocchi shots -- lower right bullseye -- from last night were actually off the paper! One was below the three-shot group right around the word "FREE!" and the other was to the right of the three shot group.) Might be time for glasses...I have trouble seeing out that far in the low-light conditions of my range. (And darn it, the US Air Force just fixed my eyes only 3 years ago...)
Next up: an adjustable Novak rear sight...I'll update this thread and post an updated target after I've gotten it and shot another 20 rounds.
As for the bushing itself, I got it from Evolution Gun Works, Inc.. I went there in person as I don't have calipers and couldn't measure what size bushing I needed, not to mention they're about 45 minutes from me. They were very friendly and super nice -- it was a pleasure to deal with them. I wound up buying a thick-flange bushing and a matching recoil spring cap. (They even checked to make sure that the adjustable Silverline rear sight did NOT fit the Tauruses, and wouldn't sell one to me.)
The guy who helped me at EGW (I think it was Jim) was a bit dumbfounded when he saw how much play there was between the stock/OEM bushing and the barrel...he wasn't surprised when I told him what the original groupings were like (I forgot to bring the target in to show him).
I can't say for the other calibers, but for the 9mm folks, the size I bought was .703" OD and .5795" ID. Call 'em up and get one -- it was less than $30 for a thick flange bushing before tax/S&H (I want to say it was around $26...a regular one may be even cheaper), plus $15 before tax/S&H for the matching recoil spring cap.
Cheers,
Andy
ETA: here are the links for the various parts...looks like $25 for the bushing and $15 for the recoil spring cap.
- Barrel Bushing
- Recoil Spring Cap
They did tell me that the recoil spring cap was purely for cosmetics...there's no need for it. Also, don't forget to specify a custom bore...
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