H110 pressure problems

[blacknwhite1]

I have been hearing that folks are having pressure problems with h110 in the hot summer months...? I only use it in my 300 whisper sub loads, I am a little worried to use it now that the temp is going up. Have any of you had any problems in hot weather?

Im using 9.6 - 10 h110 with 220 SMK's

 

[500 meter ram]

Back when that cartridge first hit the handgun silhouette game I was using AA 1680 with the 220 SMK and had great success. Hadn't heard of using H110. Good luck.

 

[gary0529]

That has been my experience.
I gave up on H110 a couple of years back after I started blowing out primers on warm days using(I think, but I don't have range logs with me now) 9.0gr. with SMK 240gr.

Rifle is a custom made unit on a Rem action with 17" Lilja barrel and suppressed.

I have pretty much gone to Lil' Gun and have no pressure issues and very good accuracy

Anyway, that is what I experienced.

Gary

 

[JFMorgan]

I don't load for a 300 Whisper, but I do use H-110 also W-296 powder in my Mdl 29 S&W .44 magnum pistol. The load manuals I use have warnings posted about not using lite loads of these powders due to the possibility of having a detonation which can cause very high pressures. This could be your problem with H-110. I recommend changing powder.

Jim Morgan