175 tmk vs berger 175 otm

[gsg5pk]

which one will you choose for .308 win between these projectile

.30 Sierra 175 TMK

.30 Berger 175 OTM

 

[JLT]

Not trying to be a smart*ss, but I'd pick the one my rifle likes best. Let the target choose . . . .

 

[cmillard]

give them both a try, and like JLT said, see what the rifle likes

 

[swadiver]

Give the TMK's a try with H4895. at right around 42 to 42.4 grs, my Criterion barreled F/TR rifle shoots 'em extremely good. velocities are in the 2775 to 2880 fps range

 

[Ned Ludd]

175 TMKs are secant ogive, 175 OTMs are a tangent ogive. When pointed, the 175 OTM might have a very slight edge in BC, but they're really so close as to be not worth mention. Due to the tangent ogive, the 175 OTMs are very forgiving with regard to seating depth, the TMKs may be a little more sensitive. Other than that, it's a virtual tossup. Unless there is some reason they won't work for you, I'd rather load up some 185 Juggernauts over either of these choices and call it a day.

 

[gsg5pk]

I read from Litz test that 175 TMK also has higher bc than Berger 175 LRBT

 

[swadiver]

175 TMKs are secant ogive, 175 OTMs are a tangent ogive. When pointed, the 175 OTM might have a very slight edge in BC, but they're really so close as to be not worth mention. Due to the tangent ogive, the 175 OTMs are very forgiving with regard to seating depth, the TMKs may be a little more sensitive. Other than that, it's a virtual tossup. Unless there is some reason they won't work for you, I'd rather load up some 185 Juggernauts over either of these choices and call it a day.

I agree with using Juggernauts when possible. great bullet. I have two F/TR .308's, clones of each other exactly. one of 'em shoots the Juggs like crazy, the other, so so, but likes the TMK's. the one that likes the Juggs shoots everything good, though. that's rifles for ya.

 

[Liven The Dream]

I have a F/TR .308 with a 12 twist 28"
They both shoot very well , but in 200 yard bench testing OTM will put 3 shoots in the same hole ?
TMK's I have random ogives ? I set them for a happy medium ? .012 off =or- .
I shot them in a couple Palma Matches 800, 900 & 1000 yards. I did not believe how will they did ?

for the info. record ! This barrel flat hates Varget Powder. I am using 4320 , Winchester cases ,Wolf LR.
I am getting 2830 FPS ?

 

[Ned Ludd]

I read from Litz test that 175 TMK also has higher bc than Berger 175 LRBT

From Litz: 175 TMK - G7 BC = 0.266, 175 OTM - G7 BC = 0.263; increase by 3% for pointing and voila, you have G7 BC = 0.271. As I'm sure you know, TMKs have a pointed plastic tip out of the box, the OTMs do not. Pointing the OTMs "evens" the comparison.

So pointed 175 OTMs will have a slightly lower BC if not pointed, slightly higher if you do point them, exactly as I stated above. In either case, the difference is so small as to be almost meaningless. You're not going to notice a difference of .003 BC, which may not even exist in reality due to Lot-to-Lot variation. So it's a virtual tossup between the two in terms of performance and whichever one shoots the best is probably the only reasonable way to distinguish one over the other.

 

[gsg5pk]

From Litz: 175 TMK - G7 BC = 0.266, 175 OTM - G7 BC = 0.263; increase by 3% for pointing and voila, you have G7 BC = 0.271. As I'm sure you know, TMKs have a pointed plastic tip out of the box, the OTMs do not. Pointing the OTMs "evens" the comparison.

So pointed 175 OTMs will have a slightly lower BC if not pointed, slightly higher if you do point them, exactly as I stated above. In either case, the difference is so small as to be almost meaningless. You're not going to notice a difference of .003 BC, which may not even exist in reality due to Lot-to-Lot variation. So it's a virtual tossup between the two in terms of performance and whichever one shoots the best is probably the only reasonable way to distinguish one over the other.

I currently use 175 OTM which poiting with standard rem 700 gun.

Just looking for the new 175 TMK which has little higher bc and cheaper

 

[Ned Ludd]

I currently use 175 OTM which poiting with standard rem 700 gun.

Just looking for the new 175 TMK which has little higher bc and cheaper

The BC of the 175 TMK isn't higher than pointed 175 OTMs. They're very close out of the box, and pointing will put the 175 OTM in front. But the BCs are still so close as not to be worth discussing the difference. Unless you're just arguing simply for the sake of arguing, I'm not sure what you're not getting about this, it's very simple. You're not going to get any better BC by switching to the TMKs. If you can get them to shoot just as well (or better) in your setup than the 175 OTMs, then it's certainly worth saving some money, all else being equal. But the choice should be made on something other than BCs, because there is really no practical difference between the two.