What pins should you draw and shoot with for an IM injection, and what barrels should you use?
So, pins for drawing, the lower the gauge, the faster the draw. However, use too low of a gauge and you will rip your stoppers up and potentially lose some into the vial. Inject that, and you're looking at having it surgically removed. I generally recommend using no lower than a 23g for AAS, and 21g for SEO. Length of your drawing pin is unimportant.
Now, pins for shooting. You want to choose the highest gauge that your shot can pass through to limit accrual of scar tissue over time. Both my AAS and SEO flow through these 27g's without too much effort. The length of the pin you shoot with will largely depend on the body part you are injecting, and how much body fat you are carrying. Essentially, pick a length that will allow you to be at least half an inch intra-muscular. For most lean individuals, a half inch pin with a slight dimple is just fine.
For barrels, it doesn't matter, just get one large enough to fit your desired dosage in. My largest shot of the week is 3ml, so I get these!
That's all there is to it, some other tips would be to aim to buy low dead space and luer lock pins.
For sub-q injections, use an insulin syringe. (That ones easy!) Any questions, PM me.
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