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Post by wisekise on Dec 22, 2018 13:30:34 GMT -5
Just picked up a Detective, after a year of searching, and once home found the barrel to bushing fit pretty sloppy. So much so that when racking the slide by hand, with no magazine, occasionally the slides locks up on presumably the barrel lugs. I initially thought this was the slide lock doing its job on an empty magazine, but it happened with no mag inserted. All it takes to send the slide home is to push slightly upward on the muzzle of the barrel. This happens on the detective factory frame, and my FN lightweight frame. Also happens when I use my lightweight barrel and my brownells threaded barrel. Could the issue be the slide's barrel lug interface? I have never seen any other mention of this on any other gun forum during or in an interwebs search. Any ideas?
I have not fired it yet to verify accuracy or lack thereof. Too busy with the holidays. Pictures coming soon.
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Post by gt40doc on Dec 22, 2018 14:12:39 GMT -5
I have a Model 90 FM Detective model, but have not noticed what you describe. My barrel/bushing interface is definitely not a match target interface, but does not lockup. I have noticed on mine, that the bbl. lugs and the slide lugs do not fit up as nicely as I want, and does produce "sharp edges" on the lugs of both.
I had my Detective at the range last week, and it shoots a "pattern", not a group!! Granted, I am not an expert shot, but do shoot my other BHPs much better. I will be interested in how accurate your gun shoots. I hope that Chuck chimes in, as he also own a Detective model. I don't know how many other members here own these handguns.
I have owned my Detective for quite a while, and have never been able to shoot it as well as I think that I should. It has never failed to perform 100% on either factory, or my handloads. I really like the size and balance of these handguns. Perhaps the barrel/slide lug alignment is causing my lack of better accuracy, or perhaps I am expecting too much from these FM handguns.
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Post by wisekise on Dec 22, 2018 16:07:25 GMT -5
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Post by wisekise on Dec 22, 2018 16:11:18 GMT -5
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Post by wisekise on Dec 22, 2018 16:14:26 GMT -5
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Post by CXM on Dec 22, 2018 17:54:47 GMT -5
I have never run across a Detective that was not reasonably accurate and reliable... Neither of mine ( I have two, one on a FM frame and one on a previously useless FEG frame) have given me problems, though they are not target guns by any means they are 'service' accurate pistols.
Hopefully Bob Reed can comment on this, because I see him as our tech expert... I'm surely not... though I can sometimes sort problems out.
I'll take a look and see just how tightly the bushing fits the on the ones I have... I am guessing they are not super tight...
More to follow.
V/r
Chuck
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Post by wisekise on Dec 22, 2018 20:30:28 GMT -5
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Post by wisekise on Dec 23, 2018 13:39:25 GMT -5
Snuck off to fire a magazine in the back field in the rain when coming back from errands today. No time or weather for accuracy, just a fast 13rnds of blazer brass out of a mecgar glossy finished magazine. 2 slide hangups out of the 13 rounds.
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Post by gt40doc on Dec 23, 2018 13:40:53 GMT -5
That recoil spring is incorrect.....better said, incomplete. To my knowledge, all factory FM Detective model recoil springs are dual springs with an inner and outer spring. They are pretty strong when one cycles the slide. I know that for a while, BHSS was selling a single spring to replace the dual setup, but they abandoned that system, and now sell the correct items. I have no idea what recoil spring that yours is, or where it is from. The correct recoil spring(s) may well go a long way to correcting your problem. Also, take a good look at your recoil spring(s) guide rod and be sure that it is correct and functioning correctly.
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Post by wisekise on Dec 23, 2018 14:36:33 GMT -5
Thanks GT. Hopefully that explains the issues I've been having. I already have 2 new spring kits and a new guide rod coming from BHSS when they start shipping after the holidays. I wonder if the added tension of the correct springs would limit the movement of the barrel in lockup, in regards to accuracy degradation, if there was any to begin with. I can only assume the guide rod I have is correct as it closely resembles pics of new and old ones on the internet. Plus it fits just like a regular bhp rod on the barrel locking lug and is the correct length in relation to the end of the barrel. Now...on to waiting...
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Post by gt40doc on Dec 23, 2018 15:44:26 GMT -5
Hopefully the new springs will get you up and running, and pleased with your detective Model. Perhaps I am just expecting too much accuracy from a "service weapon". All of my FN/Browning HPs are commercial models, and shoot great!! Merry Christmas to you and yours.
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Post by wisekise on Dec 23, 2018 16:03:23 GMT -5
GT, thank you sir. I know my other BHPs shoot better than I can, but something just really bothered me about the barrel being able to be moved by such an easy nudge of a finger. None of my other pistols barrels move so easily. And I only expect minute of man at 25yds as this is a carry peice. I will report back after the holidays once I get the BHSS parts installed and some legit range time in. Merry Christmas to you and yours as well, along with all our fellow BHP enthusiasts. Have a happy new year and shoot well.
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Post by tnorris on Dec 24, 2018 10:40:34 GMT -5
Wisekise,
I have a Detective kit mated to an FN alloy frame. I sent it off to BHSS because the trigger wouldn't reset about 22% of the time... shortening the trigger lever corrected that. While in the shop, Mark noticed the slide would stay open sometimes when it should not. He determined the guide rod was shot and replaced it, along with a new spring.
After several hundred trouble free rounds, it is now my daily carry gun and I shoot it as well as any of my other Hi Powers. I hope yours becomes as reliable as mine is now.
Merry Christmas!
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Post by wisekise on Dec 24, 2018 13:41:02 GMT -5
Tnorris, thanks for the info. I will keep an eye out for that as I replace parts as I too have an alloy frame I was hoping to mate with this slide. I have new guide rod, springs, sfs kit, and tool kit coming from bhss. Decided to cover my bases as soon as I got it. I have already noticed that the original lightweight slide and barrel assy would not go on to the FM frame, it appears that the ejector is too tall to let the slide move all the way to the rear position. I have a large assortment of FN parts so I'm sure I can make it work some day, when I have more time to inspect the different configurations.
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Post by tnorris on Dec 24, 2018 16:37:25 GMT -5
Wisekise,
It's a wonderful combination, IMO. Nearly 8oz lighter than a standard HP. Lighter and a tiny bit smaller than my CZ P-01.
I was told that the Detective slide is not an exact copy of a Hi Power slide. The Alloy frame is also different than a steel frame. I have mothballed the original slide for the Alloy frame... after adjusting the trigger lever, it sometimes fires an extra round with the full size slide in place! If I ever want to use the Alloy pistol complete I would need to first put the original trigger lever back in. I have other full size Hi Powers...
I, too, have SFS installed. I let BHSS do all the upgrade work just because of my intention to carry it daily.
BTW, the original slide functions just fine on other FN frames. The Detective slide does, too. I'm hoping the new BHSS trigger fixes my Alloy/Detective slide mating problems.
Cheers
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