3 types of rem small pistol primers

[edadmartin]

I was given 3 bricks of remington small pistol primers,id like to know the difference?

1 1/2. 5 1/2. And 6 1/2 (small rifle). Can all be used for pistol? Measurements are the same. Thanks.

[DerekP Houston]

1 1/2 are regular small pistol primers
5 1/2 are magnum small pistol primers
6 1/2 are small rifle pistol primers.

I do not mix my primer types, I use what my load book calls for. From what i have read here it would be *possible* to use them all for pistol rounds.

[Tatume]

There's also 7-1/2, small rifle BR primers.

[Outpost75]

1-1/2 is standard pressure with thin cup for standard pressure such as .38 Special wadcutter, analogous to Federal 100
5-1/2 is magnum primer with heavier cup for .357 Magnum, analogous to Federal 200
6-1/2 is small rifle primer analogous to military .30 carbine primer, used for .222 Rem. and .22 Hornet.
7-1/2 is small rifle primer heavy cup analogous to Federal 205 or military 5.56mm primer.

[bangerjim]

DO NOT interchange them!

Use as designated. That info is also available easily on the internet website.

[Scharfschuetze]

Lucky you! Three thousand primers for free. Not a bad day's work.

All the advice above is spot on.

I haven't seen the 6 1/2 primers in some time now.

[dragon813gt]

Yes, all three can be used for pistol. As long as you realize you have to work the loads up. But every reloading manual will tell you that a component change means you work the load back up.

Some guns may have problems lighting off the SR primers due to their harder cup. Specifically revolvers w/ lightened springs. Changing primers isn't a big deal as long as you work them up. Many manuals list Winchester or Federal primers. I do not use these brands so I'm already changing a component before I get started.

[dtknowles]

1-1/2 is standard pressure with thin cup for standard pressure such as .38 Special wadcutter, analogous to Federal 100
5-1/2 is magnum primer with heavier cup for .357 Magnum, analogous to Federal 200
6-1/2 is small rifle primer analogous to military .30 carbine primer, used for .222 Rem. and .22 Hornet.
7-1/2 is small rifle primer heavy cup analogous to Federal 205 or military 5.56mm primer.

I would make just one exception to these rules and that is for the .22 Hornet, many people use small pistol primers in the Hornet and claim better accuracy. I have only run limited tests and I can't see a difference. I certainly am not concerned that using small pistol primers in .22 Hornet could lead to problems with normal .22 Hornet data as it is all limited to lower pressures and certainly not a problem with cast bullet loads.

Tim

[DerekP Houston]

Wooo first one and I got the right answers :D good ol' google. TBH I haven't seen a Remington primer in person, still using up S&B with that lovely sale price.

[country gent]

I used alot of the remington small rifle match primers and large rifle match in my high power loads in 223, 243 and 308. They worked better thn most and were cheaper in bulk. I normally buy by the case unless just testing a primer.