Forum Replies Created
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SC
ParticipantThe 69 3GH bullets are good for the price point, but don’t expect them to be a Sierra Matchking.
TAC is a great powder for these.
I have not done any hunting with them.
SC
ParticipantIt depends.
You may need to sort the bullets by measuring them. Hornady and Sinclair sell the comparator tools to do this.
SC
ParticipantI have seen reloaders modify a seating stem by using JB Weld or similar. They add a dab to the tip of the stem and press the bullet into it to create a custom stem after it cures. This helps to make better contact with the stem.
Another thing to consider is brass capacity. Doing thing like sorting brass by weight and headstamp can help with lowering velocity deviation.
SC
ParticipantYou could use them for 7.62×39 and 7.62x54r as well?
SC
ParticipantI put a good chamfer on the inside of the mouth with a deburring tool.
My seating die is a Redding Match, and I don’t see any issues. Just set the bullet on top of the mouth and guide it into the die on the way up.
SC
ParticipantH335 would be my first choice for that bullet, or see if you can find some surplus WC844, it is the canister powder version of H335. Watch out for scammers selling it online.
Hodgdon’s online Reloading Center has data for IMR4064. 23.0 starting, 25.7C Max. C=compressed powder
It is a little slow burning for that application, but may work near the upper end.
SC
Participant1.100 may be a little short. I run mine at 1.135 but you have to be careful if the throats are tight on your pistols. One thought is that the magazine lips may be losing control of the round before the bullet begins entering the chamber.
Are you using Glock mags in your PCC?
SC
ParticipantIt could be mixed brass. I would sort by headstamp.
SC
ParticipantAre the unfired bullets pulling themselves out of the case during recoil?
I would measure six rounds and load them in the gun. Shoot two then measure the remaining four and see if they have lengthened. Seating depth affects pressure and if the bullets are pulling out, the pressure will drop causing a loss of velocity.
SC
ParticipantThese look to be Speer Gold Dots. I’ve shot them with faster powders, H322, N133, etc
Never tried TAC with the 62 Gold Dot, but I have shot the 62 Hornady BTHP with 25.1 grains of TAC. My notes show sub MOA groups out of my 1:7 twist bolt action.
SC
ParticipantIf you are worried about a pressure spike, I would lower the powder charge by 0.2 grains and use that as a starting point.
SC
ParticipantNo reason to get grumpy. In case you didn’t realize, this is a public forum. I am not an employee of RMR.
SC
ParticipantIf you cannot find what you want from RMR, there are still several manufacturers that make bullets here in the US.
SC
ParticipantBullseye is a fairly fast burning powder powder to use in 9mm. No need to run a magnum primer but it will work.
I would follow 124 grain recipes in the Alliant manual. You will probably end up somewhere north of 4 grains.
SC
ParticipantHKs have tight springs out of the box. Your loads need to be on the warm side to make them run.
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