reloading question
I am having to use BR-2 large rifle primers on my 22-250 reloads.
I have been putting 39.2 grains of H380 under a 53GR Barnes TSX FB.
The Barnes book says you can go over this charge a little because of the ring lands groves in the bullet.
My question is ,
Do you think I should back off a few tenths of a grain to offset the large rifle primer?
I have been putting 39.2 grains of H380 under a 53GR Barnes TSX FB.
The Barnes book says you can go over this charge a little because of the ring lands groves in the bullet.
My question is ,
Do you think I should back off a few tenths of a grain to offset the large rifle primer?
0
-
Does anyone know what the factory load is for
270 wsm Winchester Supreme loaded with a 130 grain balistic silvertip bullet. I am looking mostly for powder charge and powder type. I have a friend that will reload them for me but I want to stick with the factrory specs because it shoots soooo well.
Thanks
Steve0 -
What brand/type of powder measure do you have now?
Retired Air Force Msgt--NRA Life Member since 19710 -
rcbs uniflow
larry0 -
redding has a match grade measure in the midway catalog for $98. though I would consider tweaking the measure you have , if you can unscrew the cartridge cone look at the part that goes up in the measure does it have any flat on the top? even the slightest flat can hang up grains of powder, take your average rcbs case champering tool and debure the inside till it's a sharp edge that will solve some of the problem. the second step it to attach a tapper. I made one to fit my rcbs measure out of a piece of thread rod and a couple of nuts put it on a piviot and pop riveted it to the body of the measure. a couple taps at the top and bottom each cycle does wonders in uniforming the charge. 0 -
+/- 4.0gr or +/- 0.4gr?
Ball, flake, or stick powder.
Approx powder range your working in?
My old uniflow normaly stays +/-.1 with pistol level charges of ball powder, and +/- .3 with 60gr stick powder charges (when I'm loading near max or for accuracy I weigh each charge thrown).
As mentioned, your technique is critical to consistant charge weight.
Some guys like a mag full of lead, I still prefer one round to the head.0 -
your problem is not the measure but probaly the type of powder.different powders flow differently depending on what their shape is ie ball, flake ,etc.Rcbs makes a micrometer replacement adjustment stem to fit their units this might help. Very long grain powders such as IMR 4350 can and do vary 4to 5 grains sometimes.Also learning to always operate the measure exactly the same way each time will help to eliminate some of the variation. Hope this helps
stupid people should not be allowed to breed0 -
thank you for the help it does it with all kinds of powder im thinking i will try what gpweapon suggested.
larry0 -
Hi Irry491,
If I am not mistaken, the RCBS Uniflow is a volumetric powder measure. Therefore, each throw is based upon the volume the powder occupies and not the weight of the powder. Therefore, you are checking each throw with a scale to check the weight. Are your scales accurate and calibrated?
If the scales are true, you should recheck the assembley of the powder measure. The RCBS Uniflow is designed for accurate volumetric throws and is also designed to cut cylindrical powder to ensure the accuracy of the throw. I would double everything including my load data, adjustments to the measuring cylinder, and the assembly.
Regards,
Heavyiron[8D]
"If I don't see you nomore on this world, I'll meet you on the next one, and don't be late!" - Jimi Hendrix0 -
Tapping on the outside between each cycle only serves to vex me while I'm trying to load.
For the most uniform results from almost any powder; I just developed a rhythm from way up top, slowly, accurately moving the handle till it stops against the stop. I then visually inspect or weigh every 5th charge while I'm loading to ensure I'm still within 0.1g.
I use a cheapo Lee Perfect Powder measure, and other than its' small capacity; I've found it works as well as my Redding if I take the time to keep it at least 1/2 way full.
"Qui non est hodie cras minus aptus erit" --OVID0 -
Bite the bullet and buy a PACT scale and powder dispenser. 0
Please sign in to leave a comment.
Comments
10 comments