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Post by 41freak on Oct 17, 2021 0:29:16 GMT -5
For the last 2 years I have been on a TC Bore riding bullet craze. It started when I ordered 500 of the Penn bullets 295gr TC SSK 41 bullets. I loaded them up in my 41 mag and so far have shot extremely well in all of my 41 guns. (S&W,Dan Wesson Ruger and G2 Contender) so I started to look for the original NEI SSK molds. I have several now in 357, 41 44 and 45. But during this time about a year ago I was talking to Dave Corbin (swaging die manufacturer, I have been making my own jacketed bullets for 35 years or so) about having a point form die cut with a TC Bore ride design.I had drawn several bullets and had Tom @ accurate molds cut them and drew up one for a 9mm win mag G2 barrel I had made, and is very accurate. So while speaking to Dave I asked if I sent him the drawing if he could use it to cut the point form die, he said yes and it would be about a year or so for delivery. I ordered it and I received it this week 11 months later. So I had some of the Xtreme 165gr plated bullets so I reformed some to see how the die measured and how close to the drawing it was. It is spot on and reforms the Xtreme bullets without issues. Now I have to get time to load up some and see how they shoot. I do plan to also make some standard jacketed soon, but I have to figure out the jacket lengths.  These are test dummies in 9mm brass, they seem to function in a couple of my 9mm pistols si I will load up some and test them. |
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Post by 45MAN on Oct 17, 2021 7:24:38 GMT -5
WHAT DO YOU MEAN BY "TC Bore riding bullets"?
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Odin
.327 Meteor
Posts: 969
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Post by Odin on Oct 17, 2021 8:02:15 GMT -5
Were/Are the SSK designed TC bullets all bore rider designs?
I don't know much about the reason to choose a bore riding design, but it seems to me that from an alignment perspective it is similar to Taylor Throating... only from the bullet side of the relationship.
It certainly wouldn't help with leading the way Taylor Throating does, but that's a separate issue from the bullet's point of view.
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Post by 41freak on Oct 17, 2021 8:18:15 GMT -5
WHAT DO YOU MEAN BY "TC Bore riding bullets"? Truncated Cone bullet profile, with a short section just above the bearing surface that is sized to ride on the lands of the barrel. Yes it is to help align the bullet into the barrel. |
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Post by 41freak on Oct 17, 2021 8:28:57 GMT -5
Were/Are the SSK designed TC bullets all bore rider designs? I don't know much about the reason to choose a bore riding design, but it seems to me that from an alignment perspective it is similar to Taylor Throating... only from the bullet side of the relationship. It certainly wouldn't help with leading the way Taylor Throating does, but that's a separate issue from the bullet's point of view. I think so but not 100% sure on that. No the design won't help with leading, bullet fitment is still important to prevent leading. The bore ride section helps align the bullet into the barrel. I don't know if JD Jones used Taylor throating in his guns or not? I don't know of anywhere to get a Taylor throat reamer today, and the only smith that I know of doing a similar throat is Gary Reeder and his maxi throat that is based off Taylor throating. But this design is known to be accurate as well as penetration, deep and stright. I remember reading articles on JD taking alot of large African game with a 44 mag and his hard cast TC Bore riding bullets. |
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Post by 45MAN on Oct 17, 2021 12:11:50 GMT -5
MANY OF THE COMMERCIAL CASTERS SELL A BB .452 TC'ed FP 300gr BULLET THAT LOOKS A LOT LIKE SSK BULLETS. RECENTLY I WAS USING UP SOME REAL OLD RELOADS USING THESE BULLETS AND THEY WERE VERY ACCURATE. FOUND OVER A 1,000 OF THEM (ABOUT 60% BULL-X AND 40% OTBC) TODAY TUCKED AWAY WAY BACK OUT OF SIGHT. DOES ANYONE KNOW IF THESE COMMERCIAL CAST BULLETS ARE THE "BORE RIDE" TYPE? OR WHAT SHUD THE DIAMETER OF THE SMALL SECTION ABOVE THE CRIMP GROVE MEASURE?
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Post by 41freak on Oct 17, 2021 19:51:22 GMT -5
MANY OF THE COMMERCIAL CASTERS SELL A BB .452 TC'ed FP 300gr BULLET THAT LOOKS A LOT LIKE SSK BULLETS. RECENTLY I WAS USING UP SOME REAL OLD RELOADS USING THESE BULLETS AND THEY WERE VERY ACCURATE. FOUND OVER A 1,000 OF THEM (ABOUT 60% BULL-X AND 40% OTBC) TODAY TUCKED AWAY WAY BACK OUT OF SIGHT. DOES ANYONE KNOW IF THESE COMMERCIAL CAST BULLETS ARE THE "BORE RIDE" TYPE? OR WHAT SHUD THE DIAMETER OF THE SMALL SECTION ABOVE THE CRIMP GROVE MEASURE? Can you post a pic of both of them? |
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Post by 45MAN on Oct 18, 2021 6:29:26 GMT -5
WILL TRY TO GET A PICTURE OF THE OTBC BULLET UP TONIGHT.
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bamagreg
.327 Meteor
Woodstock, GA
Posts: 852
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Post by bamagreg on Oct 18, 2021 11:55:33 GMT -5
I just loaded 50 of the OTBC 300 grain TC in 44 mag yesterday. Never heard of bore riding. I'll have to check the diameter above the crimp groove tonight.
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Post by 45MAN on Oct 18, 2021 13:48:02 GMT -5
I DID A QUICKIE MEASUREMENT ON THE 45 CAL TCFP OTBC 300gr BULLET AND IT WAS .452 ABOVE AND BELOW THE CRIMP GROVE, DOES THAT MAKE IT A "bore rider"?
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Post by 41freak on Oct 18, 2021 14:08:49 GMT -5
I DID A QUICKIE MEASUREMENT ON THE 45 CAL TCFP OTBC 300gr BULLET AND IT WAS .452 ABOVE AND BELOW THE CRIMP GROVE, DOES THAT MAKE IT A "bore rider"? No, it would need to measure about .442 above the crimp groove, from what you described it is a standard Truncated Cone shape. I will post a drawing tonight showing both types. |
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Post by Ken O'Neill on Oct 18, 2021 15:22:33 GMT -5
Rey, all those old Bull-X bullets are certainly a treasure. I wish I had about a million of them in various calibers and weights.
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Post by 45MAN on Oct 18, 2021 18:57:32 GMT -5
Rey, all those old Bull-X bullets are certainly a treasure. I wish I had about a million of them in various calibers and weights. KEN: BESIDES 600 OR SO OF THE 300gr TCFP .452's I ALSO HAVE ABOUT THE SAME NUMBER OF THE .452 200gr SWC TARGET BULLET. WHAT MAKES THE BULL-X BULLETS A "TREASURE"? |
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Post by 41freak on Oct 18, 2021 21:48:07 GMT -5
So here is a drawing of the normL Truncated Cone bullet shape as well as a Truncated Cone Bore Riding bullet shape. Non bore riding, the top driving band above the lube/crimp groove is .452 then starts the angle side to the meplat.  Bore riding, the top driving band above the lube groove is .454 and there is a 2nd smaller diameter band above the driving band, that is .443 then it starts the angle to the meplat. That .443 diameter band is the bore riding section, it is normally. O7"-.120" in length, but can be longer.  |
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Post by Ken O'Neill on Oct 19, 2021 5:46:30 GMT -5
Rey, all those old Bull-X bullets are certainly a treasure. I wish I had about a million of them in various calibers and weights. KEN: BESIDES 600 OR SO OF THE 300gr TCFP .452's I ALSO HAVE ABOUT THE SAME NUMBER OF THE .452 200gr SWC TARGET BULLET. WHAT MAKES THE BULL-X BULLETS A "TREASURE"? Their consistent accuracy! |
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