Im reloading my 270 and i want to prep the cases right ive done everything normal including unform the primer pocket holes but how important is it to deburr the inside of the primer pocket. I often hear of people doing it but how important is it and would i notice the difference in a 270 if its just a field rifle.
Inside primer pocket deburr
- Thread starter chriswillis87
- Start date
Are you referring to removing the burr on the flash hole?
So for benchrest shooting you would but for field you wouldnt.
so does everyone agree that it wold be a waste of time than? im using federal brass by the way
Chris: Do your own side-by-side comparison test: load 10 (or so) rounds identically, except 1/2 have the flash holes deburred, and the other 1/2 do not. Take 'em out and fire for group under identical range conditions. You could also do the same test for "uniforming primer pockets". I've also compared match primers (BR4, 205M, Rem 7 1/2), in side-by-side testing with CCI400, Fed 205, & Rem "std". In every instance I was never able to find any significant/meaningful advantage in where it counts for me--- on the paper. I have the Sinclair primer pocket uniformers and find the typical primer pockets of quality brass (like Lapua) to be so close to perfect, they need nothing. Might not hold true with some of the lower quality brass, but I never use it anyway. As mentioned, I think it's more of a "feel good" exercise, and I admit to sometimes doing it, but have never seen any real-life advantage(s).
Chris,
If you have the time and don't mind doing it I would just get it done. It's not hard work, just time consuming and if down the road your loads don't group, you have already eliminated one possibility.... although, I agree with the above post, I have never noticed any significant differences in loaded rounds... but I just like to be consistent when loading all my brass.
Skeeter
If you have the time and don't mind doing it I would just get it done. It's not hard work, just time consuming and if down the road your loads don't group, you have already eliminated one possibility.... although, I agree with the above post, I have never noticed any significant differences in loaded rounds... but I just like to be consistent when loading all my brass.
Skeeter
Cris,if Burrs are in there,I want them out.I don't waste time doing comparisons,I just prep all the brass,I shoot in rifles.The Sinclare flash hole deburing tool is quick to use, as it inserts from the rear (case head)side of the case.The added advantage is that you know instantly if your flash hole is punched off center.(I set aside those cases, for lesser uses than accuracy)
Now,Lapua,Norma,and perhaps others do not need the attention as WW or Rem,for instance,but occasionally a burr will be found in Norma brass,even though the flash hole is drilled.
Now,Lapua,Norma,and perhaps others do not need the attention as WW or Rem,for instance,but occasionally a burr will be found in Norma brass,even though the flash hole is drilled.
It is a particular a waste of time with Federal brass as it has a very short life when reloaded. You can inspect all of your brass and remove any large burrs with a drill bit. The people who see a difference with this practice use custom-built guns and give attention to every detail possible. No deer will ever know.chriswillis87 said:
that is a good point no deer will know if it already groups under an inch a 100 thats good enough for a field rifle isnt it.
Ackman
Gold $$ Contributor
Joe O said:http://www.sinclairintl.com/product/13604/Flash-Hole-Deburring-Tools
This tool will uniform the flash hole,as well as remove most burrs.Quicker and easied to use,plus aligns into the primer pocket,telling you if the flash hole is off center,without lookig. :
That's a nice looking tool, but you and chriswillis are a bit confused on this. Primer pockets don't need de-burring.....a "uniforming" tool is used to cut them to a certain depth and flat on the bottom. I personally don't think it's important enough to bother with. When flash holes have a burr it's on the inside, and "de-burring" is with a different tool that goes in from the neck. I've done it but don't think it had any effect on accuracy and would never bother doing it anymore.
For me, the removing of the burr on flash holes on the inside of the case has done more for consistent accuracy than anything else. I do it for every case that I load. I use the Lyman tool because you don't have to get different size neck bushings. Trim all your cases to the same length before you use a de-burr tool. That way all are cut the same depth.
so you dont think federal brass need deburring on the inside? i know norma laupa and custom brass dont be federal brass isntof that quality
Upgrades & Donations
This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.
Click Upgrade Membership Button ABOVE to get Gold or Silver Status.
You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.
To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.