It's a good powder for the 35 Remington, and several folks on here have used it. I don't load TAC, but if it was me, I wouldn't just load up a whole bunch of rounds based on someone else's recommendation, or even from the loading manual. I'd want to load up a few in several different weights and shoot them to see how they perform.

 

That's what I always do. I load for accuracy and tight groups, while others load for high velocity. I'll load 5 each with 39gr, 39.5gr, and 40gr and see how each one performs (groups). Someone else's pet load would give me a ballpark for what works for them.

 

I used westerns data for TAC with Rem 200gr CLRNs I hit 2180fps about two grains less than max listed. I have a 18.5" ported barrel and adding more did not increase velocity or pressure. In a 20" barrel I hear 2250 is possibly. This data at the time was not listed and was for +P loads. It may go passed the 40gr mark but I think 40.0grs sounds right. I used a federal 210M LRP.

I my gun the extra few grains of non velocity gaining powder showed up as unburnt powder in my chroney. Also the flextip 200gr bullets have nore shank and will require a lower max charge than a round nose 200gr so be watchfull.

 

TJEN, the powder is likely fully consumed when it reaches the end of the barrel and gasses only are present unless pressure is quite low. The plateau in velocity had to do with other factors.

I am the guy running at 2250 out of a 20" barrel with TAC but that was with a different 200 grain bullet than an FTX. This is obtained with more pressure even with a short bearing surface 200 RN, so I do not presume to be at SAAMI pressures, but I will note that this velocity is still appropriate for a 336. Let's not go there just yet until you see how lesser charges behave.

TJEN's advice about the 200 FTX is pertinent as the bullet has a lot more bearing surface and is seated more deeply in the case as compared to the bullet Ramshot used to develop their data. I wouldn't approach Ramshot's top end with the FTX unless a chronograph was handy.

 

I wonder if Hornady tested the FTX with TAC and just didn't like how it performed compared to the other powders. I tried to find 200gr Rem RNCL but everyone was sold out and wouldn't even backorder them. I got the FTX's because of their availability and the fact that I use Hornady bullets in the other 10 calibers that I reload (I trust their QC). I could always contact Ramshot and asked if they've tested TAC with the FTX yet, and contact Hornady to ask if they tested TAC with their FTX. If neither of them tested TAC with the FTX I may end up just using the LVR powder and calling it a day. On the other hand, I have a chronograph and could test TAC with the starting load of 36gr and see what kind of velocity it produces, and look for signs of high pressure. I'll post my results in this thread but it could be a few months due to the weather.

 

i would be interested in your results, as i have some TAC, but no FTX yet. let us know what you get!

 

I'd like to offer some data on this subject - I was going to start my own thread, but this fits with your discussion. I recently had some dedicated range time to follow in the footsteps of 35 Remington/Halwg and a few others, and test TAC with 200RNs (Sierra). I havent tried the FTX yet. Difference for me was first time use of a CED chronograph and Pressure trace equipment, so I was able to test for velocity, pressure and accuracy simultaneously, which was most intersting and way cool.

Rifle is an unmodified, early 80s vintage 336C, 20" barrel. Range 100yds, warm winter day in the 50's. Accuracy with my rifle as noted, and it shows very specific and narrow sweet spots as would be expected with a barrel band carbine. WLR primers used throughout, and cases were trimmed to 1.89" (.020" shorter than recommended) due to the very short throat to avoid having bullets in contact with the rifling.

Data as follows (VEL average, SD, ES, Group size):
TAC 38.5 - 2059, 45, 127, 2.25" with horiz stringing
TAC 39.0 - 2063, 8, 21, 3.5" with horiz stringing
TAC 39.5 - 2085, 20, 48, 2.75"
TAC 40.0 - 2100, 14, 36, 1.5"
TAC 40.5 - 2116, 18, 51, 3.5" with vert stringing
TAC 41.0 - 2107, 19, 48, 3.5"
TAC 41.5 - 2140, 30, 28, 3.75"
TAC 42.0 - 2145, 11, 32, 1.75" (point of impact on top of groups from my 4320 pet/control load)

Control loads:
REM 200RNCL Factory load - 1876, 42, 105, 4+" with large point of impact shift
IMR 4320 39.0gr - 1961, 13, 32, 0.875" (pet load, has always shown great accuracy)

Comments - from reading the excellent posts over the years from 35 Remington and others, it appears my barrel is slower than most for a given load, as all my velocity readings are at least 50 fps slower than I've seen from others. I was also really surprized how slow the REM factory load was. TAC seems to be a great powder for the 35, and with a little tweaking I should be able to get both speed and accuracy I'm looking for. With regard to pressures, I'm hesitant to write them down, but they were MUCH lower than I expected. With TAC, the RAMSHOT load data shows the 40.0 gr load at 38700 PSI, and my rifle was averaging 5 KPSI below that. Same with the IMR 4320 load, if you convert from CUP to PSI (a sketchy proposition). Could be the reason for the low velocities, or it could also be erroneously low measurement, not sure yet. Visual pressure indications were normal throughout, but I was clearly running higher pressure than my 4320 control load. Trace data was very interesting as well, showed no unusual spikes.

Hope this provides some reference for your tests. My goal is to start working with LVR and 220FPs, and some 180FP testing, as well as some more work within published data to confirm pressure boundaries.

 

Thanks very much for the interesting update. I'd also encourage you to try LVR and run it through your setup to see what is possible and verify the potentially low pressure readings at good velocities.

 

35 remington, With TAC I ran out of barrel mine is an 18.5" ported. I think I hit 2180fps with just 38.5grs. From your loads the h4895 worked great say -20fps from the 20" barreled guns. And there is zero muzzle flash, I shot a hog when it was pretty dark and there no flash. In the 358win with TAC a MAG primer seems to be popular trend. So far I have only used the fed210 match primer fpr all my LRP needs.

If you would PM me with data for the 35rem 200 CLRN and LVR. I am not clear how much your using or is actual needed with the core lokt 200gr. I am wanting to try LVR if I can get the same 2160-2200 fps. 2160fps seems to be my 336D's sweet spot for accuracy so I have dropped back to 39.7grs of H4895 and get 2160-2180fps with lot to lot verience . I have the hornady manual that shows loads for the Flextip and LVR.