7400 barrel converted to 7600 barrel NEED MORE INPUT HERE GUYS!!

The manufacturer calculated the pressure in the bore and that is why the steel is as thick as it is. Any lesser thickness is weaker. A couple dots of soft steel weld is very likely not enough resistance. (How many of us have heard stories or seen a bad drill and tap job, where the scope launched off the rifle because the screws went into the bore?)

If you still have the gas block, will it go back on the barrel with the gas port rotated? Will the stock fit?
 
maple_leaf_eh said:
The manufacturer calculated the pressure in the bore and that is why the steel is as thick as it is. Any lesser thickness is weaker. A couple dots of soft steel weld is very likely not enough resistance. (How many of us have heard stories or seen a bad drill and tap job, where the scope launched off the rifle because the screws went into the bore?)

If you still have the gas block, will it go back on the barrel with the gas port rotated? Will the stock fit?
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I've still got the gas block and the stock won't fit with it on. I'd have too weld the block back on anyway
 
maple_leaf_eh said:
The manufacturer calculated the pressure in the bore and that is why the steel is as thick as it is.
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Safety is but one factor in barrel wall thickness. Caliber (often outside diameter of a barrel doesn't change between calibers on a given model, so 243 is gonna have thicker walls than 308, etc) and how heavy the barrel is (lightweight sporter/pencil, regular sporter, heavy/match, all sorts of #### in between...) are also factors though.

You're not going to get yourself in trouble thinking they made the barrel that thickness due to safety concerns, but it's certainly not the only deciding factor.
 
Suther said:
Safety is but one factor in barrel wall thickness. Caliber (often outside diameter of a barrel doesn't change between calibers on a given model, so 243 is gonna have thicker walls than 308, etc) and how heavy the barrel is (lightweight sporter/pencil, regular sporter, heavy/match, all sorts of #### in between...) are also factors though.

You're not going to get yourself in trouble thinking they made the barrel that thickness due to safety concerns, but it's certainly not the only deciding factor.
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So what am I doing? Am I gonna fire this thing as is or am I drillin the weld and tapping the hole to put a set screw in it? I've been told some conflicting things here. I'm not a metallurgist or anything, but in my mind if they're willing to drill a 1/8" hole through the barrel for gas to blow through and send it out the door then welding said hole shut really shouldn't be a problem. I was wrong once though.
 
Butcherbill said:
If it comes my way I’ll keep it lol. To answer your last question, yes I’d shoot it. I’d make sure it was in a solid rest or I’d make sure my hand was nowhere near the welded port.
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Ya I'm gonna take forearm off and set it on a pile of blankets or pillows on the car hood to shoot it. If it holds up (which it should) then I'll hold onto it and start dumpin lead. I like.you man you're honest and to the point
 
Butcherbill said:
Worse case it blows out the weld and you can tap the hole and put a plug screw in, saves you from drilling out the weld. Best case it’s solid, let us know how it works.
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That's where I'm at now, the " f*** it, full send" point and was down to both those scenarios as well. I'll let you guys know. Gonna try to get up to the farm this weekend and shoot it.
 
trapoholic said:
So what am I doing? Am I gonna fire this thing as is or am I drillin the weld and tapping the hole to put a set screw in it? I've been told some conflicting things here. I'm not a metallurgist or anything, but in my mind if they're willing to drill a 1/8" hole through the barrel for gas to blow through and send it out the door then welding said hole shut really shouldn't be a problem. I was wrong once though.
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As I said before, I would shoot it as is, and see how it goes. Worst possible scenario it blows out the weld and you get a stream of hot gas shooting out the bottom of the barrel. Just keep your hand out of the way.
 
Suther said:
As I said before, I would shoot it as is, and see how it goes. Worst possible scenario it blows out the weld and you get a stream of hot gas shooting out the bottom of the barrel. Just keep your hand out of the way.
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That was the plan, take the forend off and put that hand under the butt stock
 
Update, still haven't shot it that'll be tomorrow or Saturday. But I just called Jason at gunco to see if he could rechamber and rebore my 243 to 7-08. He can't rebore it, no biggie; so I asked him about my weld job on my converted barrel and he was all "oh f**k ya bud she's good to go fire away" my retired gunsmith buddy back home said Jason is the best smith he knows so I'll take his word for it. Jason actually suggested doin what I did cause he had a 7400 barrel there until I told him I already did haha
 
buckbrush said:
Good news
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Effin eh Cotton! Got some 168 grain ballistic tips to load up am I ever gonna make some hamburger with those bombs in November Laugh2 I'd prefer to use 180 grain round nose like I did in my 30-06 but I can't get them even close to factory ammo speed with log powder. I won't use ball powders cause bein smack dab in the middle of the snow belt we got the most unpredictable weather and temperatures in the whole damn country.
 
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