30Cal
Member
The vast majority of competitive service rifle shooters don't use crimp. The handful that do put the squeeze a fine match bullet (for shame) do so very lightly.
How much crimp is too much?
- Thread starter ny32182
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birdbustr
Member
I use the crimp on my 223 rounds for my M-4. How do they shoot? Are they accurate? Mine are...I wouldn't fix it if it ain't broke. That crimp is not going to make the rifle explode or damage your rifle. If the rounds maintain accuracy that you are comfortable with, then there is NO PROBLEM. If you don't have good accuracy, then don't crimp and see what that does for your accuracy.
ForneyRider
Member
hehe. Crimping has been subject of many of my posts as well as others.
I made some 270 Win rounds with Hornady 130gr SST that have a cannelure. I seated the bullet based on the mouth of the case at front of cannelure. I didn't have my brother's gun to find .02 off the lands, so I was playing it safe.
Well anyways, they look like crap to me, and I knew he would complain. So I started researching about the Lee Deluxe rifle dies. Found out, there is no crimp in this kit. It has a dead length bullet seating die. If I want a crimp I will have to get a FCD die for 270. If you get a different die set from Lee it has a crimp.
We had been loading 270 Win Nosler Ballistic Tips with no cannelure. But he is shooting them up, so I thought I'd save a few bucks and get the Hornady's.
Same weekend I made some Hornaday 225gr SP in 375H&H. They have a cannelure as well. I was using RCBS dies. To crimp with the RCBS, you just give the press a bump at the end of the stroke. This was for my dad, so I wanted them to look nice. And I did not want to sit there and try to explain why they aren't crimped.
I don't crimp my .41 magnum loads. I never had an issue with bullet moving around in my Ruger Blackhawk. If I ever get a Marline 1894FG(41 Mag), and the bullet creeps, then I will crimp.
I use the .45ACP Lee Deluxe Pistol die set and use the FCD die. I was getting problems cycling Springfield 1911 and Springfield XD until I used the FCD die.
I made some 270 Win rounds with Hornady 130gr SST that have a cannelure. I seated the bullet based on the mouth of the case at front of cannelure. I didn't have my brother's gun to find .02 off the lands, so I was playing it safe.
Well anyways, they look like crap to me, and I knew he would complain. So I started researching about the Lee Deluxe rifle dies. Found out, there is no crimp in this kit. It has a dead length bullet seating die. If I want a crimp I will have to get a FCD die for 270. If you get a different die set from Lee it has a crimp.
We had been loading 270 Win Nosler Ballistic Tips with no cannelure. But he is shooting them up, so I thought I'd save a few bucks and get the Hornady's.
Same weekend I made some Hornaday 225gr SP in 375H&H. They have a cannelure as well. I was using RCBS dies. To crimp with the RCBS, you just give the press a bump at the end of the stroke. This was for my dad, so I wanted them to look nice. And I did not want to sit there and try to explain why they aren't crimped.
I don't crimp my .41 magnum loads. I never had an issue with bullet moving around in my Ruger Blackhawk. If I ever get a Marline 1894FG(41 Mag), and the bullet creeps, then I will crimp.
I use the .45ACP Lee Deluxe Pistol die set and use the FCD die. I was getting problems cycling Springfield 1911 and Springfield XD until I used the FCD die.
ny32182
Member
Well I ended up pulling the bullets and replacing them with new ones, and not crimping. I fired them today with no apparant ill effects.
rero360
Member
I crimp my .45 just enough to smooth out the belling, and I put a pretty heavy crimp on my 500, well at least it feels like one anyways, but its just enough to remove the belling and to allow the rounds to slide into the cylinder with no problem
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