Temperature sensitivity of N310

Hello all.
I'm currently running 4.0gns of N310 under a 200gn SWC for 45ACP. They shoot fine in warmer weather but seem to stovepipe in cooler.
Is N310 really that temp. sensitive?
For future reference, what would be the best alternative to this load? I'd like advice on powders other than N310 that have worked for you.
My LGS has a fairly full line of VV, so any other powder I'd be interested in. I really like VV due to it being so clean burning.

Thanks in advance.

Tight group or BE would be pretty close

For cold weather, I switch to Winchester WLP primers. That fixes it for me.

VV N310 is fine. 
In cold weather increase load 1-2/10ths, or
Lighter oil, or
Lighter recoil spring, or
Magnum or Winchester primers.

May need 2 or all 4. Increase powder charge is simplist, assuming it is not already a hot load, which 4.0 should not be.

Alliant e^3 for very low temperature sensitivity. Data posted here somewhere not too long ago.

My load is very similar. 3.9gr of N310 and a H&G#68 200gr SWC.

A couple weeks ago I left my gear in my car all day at about 20°F, then went practice that evening. I didn't have any issues with my cold ammo. I'm running a 10lb spring in a Springfield RO with a Kart barrel.

NOW... I did have issues with Norma Tac22 ammo when it got cold. It woule not cycle the slide on my Nelson conversion. I gave up and used some CCI Std Vel I had with me and it worked perfectly.

Hammbone wrote:My load is very similar. 3.9gr of N310 and a H&G#68 200gr SWC.

A couple weeks ago I left my gear in my car all day at about 20°F, then went practice that evening. I didn't have any issues with my cold ammo. I'm running a 10lb spring in a Springfield RO with a Kart barrel.

NOW... I did have issues with Norma Tac22 ammo when it got cold. It woule not cycle the slide on my Nelson conversion. I gave up and used some CCI Std Vel I had with me and it worked perfectly.

Ditto with 3.9 VV N310 and 200 gr LSWC & Norma TAC .22

Allgoodhits wrote:VV N310 is fine. 
In cold weather increase load 1-2/10ths, or
Lighter oil, or
Lighter recoil spring, or
Magnum or Winchester primers.

May need 2 or all 4. Increase powder charge is simplist, assuming it is not already a hot load, which 4.0 should not be.

I have experienced the same. Using 4.4gr of N310 behind a 185gr works well in summer but need to add 1-2 tenths of a gr of N310 to keep things cycling smoothly. 

I often thought of switching to a thinner lube to mitigate this issue. Thanks for mentioning it. 
-Trevor

I did take the advice and changed from a grease to oil. Just in time for it to warm up into the 80's around here. It does make a difference in felt recoil, so I'm sure it will help.