Somewhat Cold Weather Shooting .45 cal

[Dave W]

13* This morning, cold for this guy, probably tee shirt weather for that Earnhardt guy and some of the midwest members. ;D

Took the .45 and the 11/59 N110/H322 - 275BE for a test run in coldest temps I have had a chance to shoot it in.

First shot was in the middle of the 3, been in the gun since mid December extended 2 day Ohio gun season. Been in and out of the house several times for the 2 day season and the one day I hunted in ML season in early Jan. This shot timed the fastest @ 2730fps but the POI was virtually the same as the 2nd and 3rd shots which both timed @ 2692fps which is the norm for a low shot count on the vent in the slightly warmer temps I had shot this load. I didn't check the groups size with calipers but it appears to be slightly under 1.5" for 3 shots @ 200yds.

This load based on todays results, shows very little temp sensitivity, approx. 20-25fps from todays 13*, to summer time temps of approx. 70*. I was pretty confident the load would perform well in these temps, but you never know until you actually shoot it under these conditions.




Also shot 70gr of H4198 with the 275 BE, just for a reference to compare in warmer temps. Never tried this load in my gun and the ES was 40fps and a vertically strung group that averaged 2733fps @ 18*.

Sorry for the TV box target backer but I didn't want to mangle my target frame beating it into the frozen tundra.

Fed 209A
.060 veggie
11/59gr -N110/H322
275 BE
2730-2692-2692fps @ 13*


70gr H4198
2712-2735-2753fps @ 18*

[DBinNY]

Very interesting and nice shooting Dave.

[fergy]

I would have to say that is VERY SWEEEEET!!!!!!!!! If I can get my rounds to get that tight sleep would be much easier. GREAT SHOOTING..

[Deleted]

That's some nice shooting. I like H322 since you turned me on to it

[Deleted]

Great info Dave. All my shooting of your combo 11/59 has been in between those temps of 13-70degrees, and with comparable results. It's good to know what works at 70 will also work at 13. That powder combo has worked very well for me with either the 275 BE or the 250 TEZ and has become my favorite one for sabotless...Accurate and plenty fast enough.... Thanks for turning me on to it.
Zen

[Deleted]

Great info Dave!
Temps are all relative. We get used to -40 wind chills up here, but once it gets above 80*F, I whine like a baby.

[vtecgsr95]

Which gun is this and what optics are you using Dave? BTW, nice shooting!!

[dave d.]

:)nice shooting buddy looks like both loads did well. What was the straight load group size at 200?

[Dave W]

Vtec- Shilen barreled Ruger #1. Normally it is topped off with a SII BS 6.5-20x50 but the last couple years I have swapped it out for my Elite 4200 4-16x50 for hunting season, which was still on it today. The SII dot reticle just doesn't show up well enough in low light conditions on dark objects.

Dave, not too well on the 4198 load, approx. 4". Like I said though, I have never shot that load before and it probably needs more powder to tighten up in my gun. I just shot it to see what it would time since there are so many guys who use that powder and thought it might be of interest to some.

Thanks guys.

[vtecgsr95]

What would be the max load you would feel comfortable with.....of H4198 and the 275BE in your setup? I really liked the groups with the duplex....hope you can still get that with H4198!

[shooter]

Dave,Great shooting Very Nice.

[herman]

Great shooting there Dave.
I shot a few groups with the 275 parkers tuesday,didn't have many left.You got a good load there.
I didn't get to shoot last week as planned because had to go to the doctor.
I had left the rifle as it was 2 weeks ago (didn't clean the BP or barrel)because I had planned to try the 275's the following week.
Only shot a few groups at 300 yds this week.
I guess the following in the barrel got pretty hard because I had to about beat the first 275 down and it shot about 2 feet high.The next went down good.
The first group was with your load of 11/59 which went into a 2.154 3-shot group.
The next group was with a load that I think savage shooter or marty came up with.I had had good results with this load before also.It was 4759=15gr under H4198=53 grs.Not small group but a good deer load with the 275's.
After this group decided to take a break and got to shooting the bull with another shooter for about 1/2 hour.
Had 2 more of the 275's left so decided to shoot them in the 11/59 group to make it a 5 shot group.Since I had shot a little to the right I turned the scope 2 clicks to the left,wished I had left it like it was.
This is where shots 4&5 came in.Which turned it into a 3.65 in ,5 shot group
Was out of the 275's but had one more load to try withN110=5grs/N120=65 grs so used the 250 blems parker with it.
Gave me a pretty nice group at 1.658in.
You have a good solid load with the 11/59 for either the 250 or 275's.
We had a beautifull day to shoot tuesday it got up in the low 70's.
My chrony was giving me a fit tuesday so didn't get any speeds.
Again great shooting and a very good load.May use it to hunt with this year but thats a long time off yet.

[Richard]

As always, Herman puts together some great groups!
Dave: Nice group!
Rather than a new thread, along with Herman, I was just play- ing with some different loads and combinations. Now using my "older" slightly recessed vent liner BP, which is giving me perfectly clean and easily extracted Win. 209 primers. Using a duplex with 4759 under N-130 and a 200 gr. sabot less XTP, I obtained a high velocity of 3175 fps (it was a sort of slight hammer down) but two other shots with just very firm pressure recorded speeds in the high 3,000 range. Again, no signs of high pressure showing in the primer department. Only those three shots at 100 yards 1.25". Bullet diameter needs tweaking.
Richard

[Dave W]

Thanks again guys.
Wish you would have left the scope alone also Herman, still outstanding results at that distance for 5 shots! My gun liked 12/58 better if I subbed 4759 in as the booster.

Hope to shoot your 15/55 -N110/N130 with the 250 FTX Herman, maybe tomorrow since we are supposed to only get up to 21*. Just depends if work cooperates and if it snows. Like to get some timer results for that load along with Martys N110/H4198 and Steves 11/56 4759/H322 while the temps are cooperating.

For anyone interested, TG traced this load with the BE and MH 275's just recently

[herman]

Hope you get to try the N130 load.What year was your N130 made?
If you'rs was made more recent than mine I am very curious as to how it does.The N130 I have was made in 1995 which makes it about 18 years old,but still shoots well.
This is the load I used this past year to hunt with,using a 250 sst.
Shot a 130 lb buck at 250 yds slightly quartering away from me.Complete pass through.Went in behind the shoulder and came out the far shoulder.
I don't have my book here with me at the moment but think I was getting somewhere close to 2750fps but not sure.

[rangeball]

Jan 31, 2013 17:33:35 GMT -5 Dave W said:

Thanks again guys.
Wish you would have left the scope alone also Herman, still outstanding results at that distance for 5 shots! My gun liked 12/58 better if I subbed 4759 in as the booster.

Hope to shoot your 15/55 -N110/N130 with the 250 FTX Herman, maybe tomorrow since we are supposed to only get up to 21*. Just depends if work cooperates and if it snows. Like to get some timer results for that load along with Martys N110/H4198 and Steves 11/56 4759/H322 while the temps are cooperating.

For anyone interested, TG traced this load with the BE and MH 275's just recently

Interesting to see the peak move with the heavier jacketed MH. Has to be from the difference in obturation, right?

[TGinPA]

Rangeball: In general, peak pressures tend to occur earlier, particularly with faster powders, and thin jacketed, heavy bullets when rise times are fast and higher peak pressures attained, all of which should be associated with earlier obturation,. but not always. So, you are probably right and I agree totally with your reasoning. But it depends, because clearly, there are other factors may affect timing of peak pressure, not the least of which (IMO) is how and when the RSI firmware algorithm in the PT module decides to begin recording a trace. Also, since I switched from USB hard wired pressure tracing to a setup in which the module communicates with my laptop via Bluetooth, I have noted significant variance in timing of peak pressure for any given load, even my calibration load, (for reasons I do not fully understand). After looking at a lot of traces, I have become a bit cautious about attributing differences in timing of peak pressure to one cause or another in single traces until I trace perhaps 4 or 5 of the same load under the same conditions to get an average. However, to do that for anything but my calibration load is is expensive and time consuming. So, it is something that I almost never do.
TG

[Dave W]

Not a good day for groups, gusty 10-20mph winds coming out of the south that would switch to a full value east wind.

Ambient-19* barrel temp-21*
12/50- N110/H4198 275 BE
2657-2675-2663fps avg.-2665fps

Ambient-21* barrel temp-24*
15/55- N110/N130 250 FTX
2775-2776-2773-2788-2761fps avg.-2775fps
Herman, this lot of N130 is from 1999.

Only had two sized 250FTXs left so I tried a 10/60 RD/2015 that averaged 2721fps @66*. They went 2746-2746fps in todays temps.