Mag primer question [Archive] - Glock Talk


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09-08-2011, 17:47
I've loaded a bunch of rounds for my .357mag using cast, plated and generic jacketed rounds with mainly hp38/231. I've been given some Hornady XTPs and would like to load at mag levels so will pick up some 110/296, does that powder need mag primers? I'm assuming it would. Thanks.

09-08-2011, 17:51
Forget about the 110, go with 2400.


09-08-2011, 17:55
I agree with Jack regarding 2400. To your original point, follow the recommendation listed in the data. Most if not all data for 296/H110 recommends mag primers. Most 2400 data is given with standard primers.

09-08-2011, 18:06
I'll go with the 2400 then, thanks for the recommendation.

09-08-2011, 19:37
I'll go with the 2400 then, thanks for the recommendation.

It's much more flexible, you can load it down or up to max. Also, even at max and with a mag primer, 296 leaves unburned powder. It's not the worst thing that can happen to you, but in some cases the unburned powder falls under the extractor and even a little of it can tie the gun up. A quick brush off with a dry tooth brush fixes it, but better to not have to deal with it. at top loads, 2400 velocity is as fast, or nearly as fast, as 296.

09-09-2011, 00:58
I have to agree qith th eother old timers, 2400 is a good magnum powder. It won;t get you the top end vel but is sooo much easier to load with as the range is wider. H110/W296 is a max effort only powder & you DO need to use mag primers for eithre. With 2400, it happily moves along w/ std primers.