Rem 700P light primer strikes

[diver160651]

Rem 700P light primer strikes

I am in agreement with PacRat no need to full length resize the brass.



Could you do a test?

Take a single layer/piece of cellophane tape and place it over the base of a case that didn't fire.

Using a sharp knife trim off any excess tape.

Insert the round in your gun and tell us how the bolt closes.

If it closes easily add a second layer/piece of tape and repeat the test.

Post your results.

Yep for head space.... Did the op try to fire them again? Seen lots of guys with new brass not fully seat, especially with cheap primer tools.


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[Catalyst81]

I am in agreement with PacRat no need to full length resize the brass.

Could you do a test?
Take a single layer/piece of cellophane tape and place it over the base of a case that didn't fire.
Using a sharp knife trim off any excess tape.
Insert the round in your gun and tell us how the bolt closes.
If it closes easily add a second layer/piece of tape and repeat the test.
Post your results.

I'll be out of town the next week but can give this a shot when I get back.

Yep for head space.... Did the op try to fire them again? Seen lots of guys with new brass not fully seat, especially with cheap primer tools.


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I tried firing about 4 of them twice with no luck. I seated them with an Rcbs hand priming tool. I'm admittedly brand new to reloading but they felt fully seated when I primed them.

[LynnJr]

On the hand priming tools the handle should touch the tool when the primer is fully seated.
The only tool I know of that is adjustable is the Sinclair.

[diver160651]

On the hand priming tools the handle should touch the tool when the primer is fully seated.

The only tool I know of that is adjustable is the Sinclair.

I have a 21st century that is also adjustable as is a K&M. The Sinclair, 21st & K&M all are also strong enough to fully seat primers on tight brass/primer combos were as the Lee and RCBS can occasionally flex out and fall short. Although I personally have only rarely experienced this issue , once with a new batch Norma Win Mag brass / FGMM LR primers and more often dealing with removed crimps on LC (I do not reload the LC any longer), I've stop using the Lee and RCBS.





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[Hateca]

To the OP. If you are using a Timney trigger there are two different sears for that trigger. Shorter one for factory Remington and a longer one for custom actions with Remington footprint such as Stiller and Defiance. If your bolt has been modified, and you have the shorter sear you may get light primer hits. One way to tell is cock the rifle and look at the shroud. If the cocking piece is flush or nearly flush with the back of the shroud you most likely have the shorter sear. Call Timney and tell them you need a longer sear for your trigger. It is sometime referred to as the 510U sear. It's not on their website you need to call and talk to them.

If your cocking piece is not out this far you may have an issue with light primer hits.

[NorCalFocus]

On the hand priming tools the handle should touch the tool when the primer is fully seated.

The only tool I know of that is adjustable is the Sinclair.

Not cheap, but fully adjustable for seating primers to the same depth every time.

https://www.primalrights.com/equipment/base-cps

[TMB 1]

Lyman 310 prime die is adjustable. You'd have to buy used though. I think they only make a couple now.